Debris resulting from a process that is of no further use to the system producing it. The concept includes materials discharged from or stored in a system in inert form as a by-product of vital activities. (From Webster's New Collegiate Dictionary, 1981)
Residue generated from combustion of coal or petroleum.
A natural fuel formed by partial decomposition of vegetable matter under certain environmental conditions.
A by-product of the destructive distillation of coal used as a topical antieczematic. It is an antipruritic and keratoplastic agent used also in the treatment of psoriasis and other skin conditions. Occupational exposure to soots, tars, and certain mineral oils is known to be carcinogenic according to the Fourth Annual Report on Carcinogens (NTP 85-002, 1985) (Merck Index, 11th ed).
A diffuse parenchymal lung disease caused by inhalation of dust and by tissue reaction to their presence. These inorganic, organic, particulate, or vaporized matters usually are inhaled by workers in their occupational environment, leading to the various forms (ASBESTOSIS; BYSSINOSIS; and others). Similar air pollution can also have deleterious effects on the general population.
A diffuse parenchymal lung disease caused by accumulation of inhaled CARBON or coal dust. The disease can progress from asymptomatic anthracosis to massive lung fibrosis. This lung lesion usually occurs in coal MINERS, but can be seen in urban dwellers and tobacco smokers.
The ash, dust, gases, and lava released by volcanic explosion. The gases are volatile matter composed principally of about 90% water vapor, and carbon dioxide, sulfur dioxide, hydrogen, carbon monoxide, and nitrogen. The ash or dust is pyroclastic ejecta and lava is molten extrusive material consisting mainly of magnesium silicate. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed)
A plant genus of the family OLEACEAE. Members contain secoiridoid glucosides.
Earth or other matter in fine, dry particles. (Random House Unabridged Dictionary, 2d ed)
High temperature destruction of waste by burning with subsequent reduction to ashes or conversion to an inert mass.
The application of heat to raise the temperature of the environment, ambient or local, or the systems for accomplishing this effect. It is distinguished from HEAT, the physical property and principle of physics.
Quartz (SiO2). A glassy or crystalline form of silicon dioxide. Many colored varieties are semiprecious stones. (From Grant & Hackh's Chemical Dictionary, 5th ed)
The contamination of indoor air.
Worthless, damaged, defective, superfluous or effluent material from industrial operations.
Units that convert some other form of energy into electrical energy.
A form of pneumoconiosis caused by inhalation of dust that contains both CARBON and crystalline SILICON DIOXIDE. These foreign matters induce fibrous nodule formation in the lung.
Compounds consisting of two or more fused ring structures.
The exposure to potentially harmful chemical, physical, or biological agents that occurs as a result of one's occupation.
Any combustible hydrocarbon deposit formed from the remains of prehistoric organisms. Examples are petroleum, coal, and natural gas.
A geographical area of the United States with no definite boundaries but comprising northeastern Alabama, northwestern Georgia, northwestern South Carolina, western North Carolina, eastern Kentucky, eastern Tennessee, western Virginia, West Virginia, western Maryland, southwestern Pennsylvania, southern Ohio, and southern New York.
The art or practice of preparing food. It includes the preparation of special foods for diets in various diseases.
Particles of any solid substance, generally under 30 microns in size, often noted as PM30. There is special concern with PM1 which can get down to PULMONARY ALVEOLI and induce MACROPHAGE ACTIVATION and PHAGOCYTOSIS leading to FOREIGN BODY REACTION and LUNG DISEASES.
A nonmetallic element with atomic symbol C, atomic number 6, and atomic weight [12.0096; 12.0116]. It may occur as several different allotropes including DIAMOND; CHARCOAL; and GRAPHITE; and as SOOT from incompletely burned fuel.
Sudden onset water phenomena with different speed of occurrence. These include flash floods, seasonal river floods, and coastal floods, associated with CYCLONIC STORMS; TIDALWAVES; and storm surges.
Non-frontal low-pressure systems over tropical or sub-tropical waters with organized convection and definite pattern of surface wind circulation.
Refuse liquid or waste matter carried off by sewers.
Time period from 1501 through 1600 of the common era.
Elements of residence that characterize a population. They are applicable in determining need for and utilization of health services.
A low-molecular-weight (16,000) iron-free flavoprotein containing one molecule of flavin mononucleotide (FMN) and isolated from bacteria grown on an iron-deficient medium. It can replace ferredoxin in all the electron-transfer functions in which the latter is known to serve in bacterial cells.
Barriers used to separate and remove PARTICULATE MATTER from air.
A plant genus of the family Paeoniaceae, order Dilleniales, subclass Dilleniidae, class Magnoliopsida. These perennial herbs are up to 2 m (6') tall. Leaves are alternate and are divided into three lobes, each lobe being further divided into three smaller lobes. The large flowers are symmetrical, bisexual, have 5 sepals, 5 petals (sometimes 10), and many stamens.
Higher plants that live primarily in terrestrial habitats, although some are secondarily aquatic. Most obtain their energy from PHOTOSYNTHESIS. They comprise the vascular and non-vascular plants.
An island in the Greater Antilles in the West Indies. Its capital is Kingston. It was discovered in 1494 by Columbus and was a Spanish colony 1509-1655 until captured by the English. Its flourishing slave trade was abolished in the 19th century. It was a British colony 1655-1958 and a territory of the West Indies Federation 1958-62. It achieved full independence in 1962. The name is from the Arawak Xaymaca, rich in springs or land of springs. (From Webster's New Geographical Dictionary, 1988, p564 & Room, Brewer's Dictionary of Names, 1992, p267)
Remains, impressions, or traces of animals or plants of past geological times which have been preserved in the earth's crust.
Large natural streams of FRESH WATER formed by converging tributaries and which empty into a body of water (lake or ocean).
Contamination of bodies of water (such as LAKES; RIVERS; SEAS; and GROUNDWATER.)

Respiratory epithelial cells demonstrate lactoferrin receptors that increase after metal exposure. (1/74)

Human airway epithelial cells can increase expression of both lactoferrin and ferritin after exposure to catalytically active metal. These proteins transport and store metal, with coordination sites fully complexed, and therefore can diminish the oxidative stress. The intracellular transport of lactoferrin results in a transfer of complexed metal to ferritin, where it is stored in a less reactive form. This effort to control the injurious properties of metals would be facilitated by lactoferrin receptors (LfRs) on airway epithelial cells. We tested the hypotheses that 1) LfRs exist on respiratory epithelial cells and 2) exposure to both an air pollution particle, which has abundant concentrations of metals, and individual metal salts increase the expression of LfRs. Before exposure to either the particle or metals, incubation of BEAS-2B cells with varying concentrations of 125I-labeled lactoferrin demonstrated lactoferrin binding that was saturable. Measurement of 125I-lactoferrin binding after the inclusion of 100 micrograms/ml of oil fly ash in the incubation medium demonstrated increased binding within 5 min of exposure, which reached a maximal value at 45 min. Inclusion of 1.0 mM deferoxamine in the incubation of BEAS-2B cells with 100 micrograms/ml of oil fly ash decreased lactoferrin binding. Comparable to the particle, exposure of BEAS-2B cells to either 1.0 mM vanadyl sulfate or 1.0 mM iron (III) sulfate, but not to nickel sulfate, for 45 min elevated LfR activity. We conclude that LfRs on respiratory epithelial cells increased after exposure to metal. LfRs could participate in decreasing the oxidative stress presented to the lower respiratory tract by complexing catalytically active metals.  (+info)

Role of soluble metals in oil fly ash-induced airway epithelial injury and cytokine gene expression. (2/74)

Particulate matter (PM) metal content and bioavailability have been hypothesized to play a role in the health effects epidemiologically associated with PM exposure, in particular that associated with emission source PM. Using rat tracheal epithelial cells in primary culture, the present study compared and contrasted the acute airway epithelial effects of an emission source particle, residual oil fly ash (ROFA), with that of its principal constitutive transition metals, namely iron, nickel, and vanadium. Over a 24-h period, exposure to ROFA, vanadium, or nickel plus vanadium, but not to iron or nickel, resulted in increased epithelial permeability, decreased cellular glutathione, cell detachment, and lytic cell injury. Treatment of vanadium-exposed cells with buthionine sulfoximine further increased cytotoxicity. Conversely, treatment with the radical scavenger dimethylthiourea inhibited the effects in a dose-dependent manner. RT-PCR analysis of RNA isolated from ROFA-exposed rat tracheal epithelial cells demonstrated significant macrophage inflammatory protein-2 and interleukin-6 gene expression as early as 6 h after exposure, whereas gene expression of inducible nitric oxide synthase was maximally increased 24 h postexposure. Again, vanadium (not nickel) appeared to be mediating the effects of ROFA on gene expression. Treatment with dimethylthiourea inhibited both ROFA- and vanadium-induced gene expression in a dose-dependent manner. Corresponding effects were observed in interleukin-6 and macrophage inflammatory protein-2 synthesis. In summary, generation of an oxidative stress was critical to induction of the ROFA- or vanadium-induced effects on airway epithelial gene expression, cytokine production, and cytotoxicity.  (+info)

Residual oil fly ash and charged polymers activate epithelial cells and nociceptive sensory neurons. (3/74)

Residual oil fly ash (ROFA) is an industrial pollutant that contains metals, acids, and unknown materials complexed to a particulate core. The heterogeneous composition of ROFA hampers finding the mechanism(s) by which it and other particulate pollutants cause airway toxicity. To distinguish culpable factors contributing to the effects of ROFA, synthetic polymer microsphere (SPM) analogs were synthesized that resembled ROFA in particle size (2 and 6 microm in diameter) and zeta potential (-29 mV). BEAS-2B human bronchial epithelial cells and dorsal root ganglion neurons responded to both ROFA and charged SPMs with an increase in intracellular Ca(2+) concentration ([Ca(2+)](i)) and the release of the proinflammatory cytokine interleukin-6, whereas neutral SPMs bound with polyethylene glycol (0-mV zeta potential) were relatively ineffective. In dorsal root ganglion neurons, the SPM-induced increases in [Ca(2+)](i) were correlated with the presence of acid- and/or capsaicin-sensitive pathways. We hypothesized that the acidic microenvironment associated with negatively charged colloids like ROFA and SPMs activate irritant receptors in airway target cells. This causes subsequent cytokine release, which mediates the pathophysiology of neurogenic airway inflammation.  (+info)

Variable pulmonary responses from exposure to concentrated ambient air particles in a rat model of bronchitis. (4/74)

Chronic bronchitis may be considered a risk factor in particulate matter (PM)-induced morbidity. We hypothesized that a rat model of human bronchitis would be more susceptible to the pulmonary effects of concentrated ambient particles (CAPs) from Research Triangle Park, NC. Bronchitis was induced in male Sprague-Dawley rats (90-100 days of age) by exposure to 200 ppm sulfur dioxide (SO2), 6 h/day x 5 days/week x 6 weeks. One day following the last SO2 exposure, both healthy (air-exposed) and bronchitic (SO2-exposed) rats were exposed to filtered air (three healthy; four bronchitic) or CAPs (five healthy; four bronchitic) by whole-body inhalation, 6 h/day x 2 or 3 days. Pulmonary injury was determined either immediately (0h) or 18 h following final CAPs exposure. The study protocol involving 0 h time point was repeated four times (study #A, November, 1997; #B, February, 1998; #C and #D, May, 1998), whereas the study protocol involving 18 h time point was done only once (#F). In an additional study (#E), rats were exposed to residual oil fly ash (ROFA), approximately 1 mg/ m(3)x6 h/day x 3 days to mimic the CAPs protocol (February, 1998). The rats allowed 18 h recovery following CAPs exposure (#F) did not depict any CAPs-related differences in bronchoalveolar lavage fluid (BALF) injury markers. Of the four CAPs studies conducted (0 h time point), the first (#A) study (approximately 650 microg/m3 CAPs) revealed significant changes in the lungs of CAPs-exposed bronchitic rats compared to the clean air controls. These rats had increased BALF protein, albumin, N-acetyl glutaminidase (NAG) activity and neutrophils. The second (#B) study (approximately 475 microg/m3 CAPs) did not reveal any significant effects of CAPs on BALF parameters. Study protocols #C (approximately 869 microg/m3 CAPs) and #D (approximately 907 microg/m3 CAPs) revealed only moderate increases in the above mentioned BALF parameters in bronchitic rats exposed to CAPs. Pulmonary histologic evaluation of studies #A, #C, #D, and #F revealed marginally higher congestion and perivascular cellularity in CAPs-exposed bronchitic rats. Healthy and bronchitic rats exposed to ROFA (approximately 1 mg/m3) did not show significant pulmonary injury (#E). Analysis of leachable elemental components of CAPs revealed the presence of sulfur, zinc, manganese, and iron. There was an apparent lack of association between pulmonary injury and CAPs concentration, or its leachable sulfate or elemental content. In summary, real-time atmospheric PM may result in pulmonary injury, particularly in susceptible models. However, the variability observed in pulmonary responses to CAPs emphasizes the need to conduct repeated studies, perhaps in relation to the season, as composition of CAPs may vary. Additionally, potential variability in pathology of induced bronchitis or other lung disease may decrease the ability to distinguish toxic injury due to PM.  (+info)

Diminished injury in hypotransferrinemic mice after exposure to a metal-rich particle. (5/74)

Using the hypotransferrinemic (Hp) mouse model, we studied the effect of altered iron homeostasis on the defense of the lung against a catalytically active metal. The homozygotic (hpx/hpx) Hp mice had greatly diminished concentrations of both serum and lavage fluid transferrin relative to wild-type mice and heterozygotes. Fifty micrograms of a particle containing abundant concentrations of metals (a residual oil fly ash) was instilled into wild-type mice and heterozygotic and homozygotic Hp animals. There was an oxidative stress associated with particle exposure as manifested by decreased lavage fluid concentrations of ascorbate. However, rather than an increase in lung injury, diminished transferrin concentrations in homozygotic Hp mice were associated with decreased indexes of damage, including concentrations of relevant cytokines, inflammatory cell influx, lavage fluid protein, and lavage fluid lactate dehydrogenase. Comparable to other organs in the homozygotic Hp mouse, siderosis of the lung was evident, with elevated concentrations of lavage fluid and tissue iron. Consequent to these increased concentrations of iron, proteins to store and transport iron, ferritin, and lactoferrin, respectively, were increased when assayed by immunoprecipitation and immunohistochemistry. We conclude that the lack of transferrin in Hp mice did not predispose the animals to lung injury after exposure to a particle abundant in metals. Rather, these mice demonstrated a diminished injury that was associated with an increase in the metal storage and transport proteins.  (+info)

Oil fly ash-induced elevation of plasma fibrinogen levels in rats. (6/74)

Particulate matter air pollution (PM) has been associated with morbidity and mortality from ischemic heart disease and stroke in humans. It has been hypothesized that alveolar inflammation, resulting from exposure to PM, may induce a state of blood hypercoagulability, triggering cardiovascular events in susceptible individuals. Previous studies in our laboratory have demonstrated acute lung injury with alveolar inflammation in rats following exposure to residual oil fly ash (ROFA), an emission source particulate. In addition, increased mortality has been documented following exposure to ROFA in rats with preexistent cardiopulmonary disease. ROFA's toxicity derives from its soluble metal content, which appears also to drive the toxicity of ambient PM. The present study was conducted to test the hypothesis that exposure of rats to a toxic PM, like ROFA, would adversely alter hemostatic parameters and cardiovascular risk factors thought to be involved in human epidemiologic findings. Sixty-day-old male Sprague-Dawley rats were exposed by intratracheal instillation (IT) to varying doses (0.3, 1. 7, or 8.3 mg/kg) of ROFA, 8.3 mg/kg Mt. Saint Helen's volcanic ash (MSH, control particle), or 0.3 ml saline (SAL, control). At 24 h post-IT, activated partial thromboplastin time (APTT), prothrombin time (PT), plasma fibrinogen (PF), plasma viscosity (PV), and complete blood count (CBC) were performed on venous blood samples. No differences from control were detected in APTT and PT in ROFA-exposed rats; however, ROFA exposure did result in elevated PF, at 8.3 mg/kg only. In addition, PV values were elevated in both ROFA and MSH-exposed rats relative to SAL-control rats, but not significantly. Although no changes were detected in APTT and PT, alteration of important hematologic parameters (notably fibrinogen) through PM induction of an inflammatory response may serve as biomarkers of cardiovascular risk in susceptible individuals.  (+info)

Induction of pulmonary matrilysin expression by combustion and ambient air particles. (7/74)

The molecular mechanism(s) by which chemically complex air pollution particles mediate their adverse health effects is not known. We have examined the ability of combustion and ambient air particles to induce pulmonary matrilysin expression due to the well-documented role of matrix metalloproteinases in tissue injury and repair responses. Rats were exposed to saline, residual oil fly ash (2.5 mg/rat), or ambient air particles (2.5 mg/rat) via intratracheal instillation and examined 3-72 h after exposure. Saline-exposed animals had low levels of matrilysin mRNA, whereas the animals exposed to either complex particle showed an early induction of pulmonary matrilysin gene expression as well as of the 19-kDa activated form of matrilysin. Immunocytochemistry and in situ hybridization analyses identified the alveolar macrophages and monocytes as primary sources of air pollution particle-induced matrilysin expression. Matrilysin gene induction and protein activation by combustion and ambient air particles correlated with the early histopathological changes produced by these particles. These results demonstrate the ability of combustion and ambient air particles to induce pulmonary matrilysin expression and suggest a role for this matrix metalloproteinase in the initiation of lung injury produced by these particles.  (+info)

The Indian Ocean experiment: widespread air pollution from South and Southeast Asia. (8/74)

The Indian Ocean Experiment (INDOEX) was an international, multiplatform field campaign to measure long-range transport of air pollution from South and Southeast Asia toward the Indian Ocean during the dry monsoon season in January to March 1999. Surprisingly high pollution levels were observed over the entire northern Indian Ocean toward the Intertropical Convergence Zone at about 6 degrees S. We show that agricultural burning and especially biofuel use enhance carbon monoxide concentrations. Fossil fuel combustion and biomass burning cause a high aerosol loading. The growing pollution in this region gives rise to extensive air quality degradation with local, regional, and global implications, including a reduction of the oxidizing power of the atmosphere.  (+info)

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Optimizing and Characterizing Geopolymers from Ternary Blend of Philippine Coal Fly Ash, Coal Bottom Ash and Rice Hull AshOptimizing and Characterizing Geopolymers from Ternary Blend of Philippine Coal Fly Ash, Coal Bottom Ash and Rice Hull Ash ...
Particulate matter air pollution has been associated with cardiopulmonary morbidity and mortality in many recent epidemiological studies. Previous toxicological research has demonstrated profound cardiac and thermoregulatory changes in rats following exposure to residual oil fly ash (ROFA), a combustion-derived particulate. The response to ROFA appeared biphasic, consisting of both immediate (0-6 h) and delayed (24-96 h) bradycardia and hypothermia. Other studies have demonstrated that much of the pulmonary toxicity of ROFA was caused by its constitutive transition metals, namely, Fe, Ni, and V. This study examined the contributions of these metals to the observed cardiac and thermoregulatory changes caused by ROFA in conscious, unrestrained rats. Prior to exposure, each animal was surgically implanted with a radiotelemetry device capable of continuously monitoring heart rate, electrocardiographic, and core temperature data. Individual metals were intratracheally instilled in healthy rats (n = 4 ...
Ice-nucleating particles (INPs), which are precursors for ice formation in clouds, can alter the microphysical and optical properties of clouds, thereby impacting the cloud lifetimes and hydrological cycles. However, the mechanisms with which these INPs nucleate ice when exposed to different atmospheric conditions are still unclear for some particles. Recently, some INPs with pores or permanent surface defects of regular or irregular geometries have been reported to initiate ice formation at cirrus temperatures via the liquid phase in a two-step process, involving the condensation and freezing of supercooled water inside these pores. This mechanism has therefore been labelled pore condensation and freezing (PCF). The PCF mechanism allows formation and stabilization of ice germs in the particle without the formation of macroscopic ice. Coal fly ash (CFA) aerosol particles are known to nucleate ice in the immersion freezing mode and may play a significant role in cloud formation. In our current ...
Wang, J.; Wang, T.; Mallhi, H.; Liu, Y.; Ban, Heng; and Ladwig, K., The Role of Ammonia on Mercury Leaching from Coal Fly Ash (2007). ...
Waste oil fly ash (OFA) collected from disposal of power generation plants was treated by physicochemical activation technique to improve the surface properties of OFA. This synthesized material was further used for potential hydrogen sulfide (H2S) adsorption from synthetic natural gas. The raw OFA was basically modified with a mixture of acids (20% nitric acid [HNO3] and 80% phosphoric acid [H3PO4]), and it was further treated with 2 M potassium hydroxide (KOH) to enhance the surface affinity as well as surface area of synthesized activated carbon. Correspondingly, it enhanced the adsorption of H2S. Crystallinity, surface morphology, and pore volume distribution of prepared activated carbon were investigated using X-ray diffraction (XRD), scanning electron microscopy (SEM), and Brunauer-Emmett-Teller (BET) analyses. Fourier transform infrared (FTIR) study was also performed to identify the functional groups during different synthesis stages of modified activated carbon. The Langmuir, ...
South African coal-fired power stations produce about 25 million tons of fly ash per annum, of which only approximately 5% is currently reused. A growing concern about pollution and increasing landfill costs stimulates research into new ways to utilize coal fly ash for economically beneficial applications. Fly ash particles may be used as inorganic filler in polymers, an application which generally requires the modification of their surface properties. In order to design experiments that will result in controlled changes in surface chemistry and morphology, a detailed knowledge of the bulk chemical and mineralogical compositions of untreated fly ash particles, as well as their morphology and surface properties, is needed. In this paper, a combination of complementary bulk and surface techniques was explored to assess the physicochemical properties of a classified, ultrafine coal fly ash sample, and the findings were discussed in the context of polymer application as fillers. The sample was ...
FY10-53 OAK RIDGE, Tenn. - No adverse health effects were found among those Roane County residents who elected to participate in medical evaluations following the December 2008 fly ash spill at TVAs Kingston Fossil Plant. Medical experts at Oak Ridge Associated Universities and Vanderbilt University Medical Center released their findings today. Over an eight-month period, we conducted independent comprehensive evaluations of more than 200 residents who opted to undergo a medical evaluation at no cost to the resident, said Donna Cragle, a Ph.D. epidemiologist and vice president of Occupational Exposure and Worker Health for ORAU. The evaluation was available to any Roane County resident who had health concerns about the fly ash spill.. At the time of the evaluation, the participants ranged in age from less than a year old to 89 years old. The majority of the population (56 percent) was between the ages of 18 and 65 and nearly equally divided between male and female. Approximately half of the ...
Get an answer for What is the difference between the combustion of distillate oils and residual oils? Include chemical equations of sample chemical reactions. and find homework help for other Science questions at eNotes
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This study provides independent analysis of Residual Oil Zones (ROZs) in the Permian Basin from a regional perspective, focusing on the formation mechanism and present ROZ locations. Results demonstrate widespread potential for ROZs, defined here as thick volumes of reservoir rock containing near-residual saturations of predominantly immobile oil formed by natural imbibition and displacement of oil by dynamic buoyant or hydrodynamic forces. Previous work suggests hydrodynamic forces generated by regional tectonic uplift drove widespread oil remobilization and ROZ creation. To test the hypothesis, uplift and tilting are quantified and the resulting peak regional potentiometric gradient used as a physical constraint to compute and compare predicted ROZ thicknesses from hydrodynamics for several ROZ-bearing San Andres fields with known ROZ thicknesses. Late-Albian Edwards Group geologic contacts, which are interpreted to have been deposited near sea level prior to uplift, are used as a regional ...
Owing to its importance in the assessment of reinforced concrete structures, it is essential to determine the chloride diffusivity of fly ash concrete. This paper presents an investigation into the diffusion characteristics of chloride ions in fly ash concrete. Through experiment, the relationship between chloride diffusivity and curing age up to 1800 days is measured and the effects of curing age, water/binder ratio, aggregate volume fraction, and fly ash content (i.e., percentage of total cementitious material by mass) on chloride diffusivity are evaluated. It is found that the chloride diffusivity decreases with the increase of curing age, aggregate volume fraction, and fly ash content, but increases with the increase of water/binder ratio. In analytical modeling, an equivalent aggregate model is constructed and the equivalent interfacial transition zone (ITZ) thickness is derived analytically. With the equivalent aggregate model, three-phase fly ash concrete reduces to a two-phase composite material
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Coal is the main source of electricity in South Africa, the combustion of which produces a large amount of waste (coal fly ash) annually. The large-scale generation of coal fly ash places major strain on landfills and the ...
Looking for Fly ash? Find out information about Fly ash. Fine particulate, essentially noncombustible refuse, carried in a gas stream from a furnace. Coal combustion residue. A fine glass powder recovered from the... Explanation of Fly ash
Sources: Sunrise Resources Plc, Cheshire, U.K.; CP staff. Sunrise Resources reports successful demonstration of a material, mined at the CS Pozzolan-Perlite Project in Nevada, as a substitute for fly ash in concrete. Prior observation of the natural pozzolan entailed mortar specimens, while more recent tests have been conducted on concrete samples and involved a major integrated cement and ready mixed producer. Sunrise technicians evaluated mixtures with the natural pozzolan substituting portland cement at a 20 percent factor plus a control bearing commercially available pozzolan. The CS Pozzolan specimens strength development, setting times and shrinkage properties compare favorably against the benchmark commercial sample per results or criteria of ASTM C39 Standard Test Method for Compressive Strength of Cylindrical Concrete Specimens; C618 Standard Specification for Coal Fly Ash and Raw or Calcined Natural Pozzolan for Use in Concrete; and, C1157 Standard Performance Specification for ...
It is without exaggerated to say that fly ash brick making machine is a wonderful machine that has multi-purpose features. Fly ash bricks machine combines automatic and hydraulic skills that could manufacture good quality bricks taking fly ash, slag, concrete, concrete waste and mineral waste as raw materials.Customers can customize various types of mould to produce fly ash brick, block .... contact us ...
ABSTRACT : Cement industry is one of the major contributors to the emission of greenhouse gasses. So, efforts are needed to make concrete more environmental friendly by using fly ash which helps in reduce global warming as well as fly ash disposal problem. This paper presents study of effect of curing period on mechanical properties of fly ash based geopolymer concrete. The study analysis is the effect of Duration of treatment on compressive strength of Geopolymer Concrete. Geopolymer concrete is manufactured by replacing cement 100% with processed GGBS which is chemically activated by alkaline solutions like sodium silicate (Na2SiO3) and sodium hydroxide (NaOH). In the present paper the effect of curing hours on Geo-polymer Concrete (GPC) specimens . Fly ash , silica fume and GGBS were used as binder, combined with an alkaline solution to form geopolymer paste instead of cement paste to bind the aggregates. The experiments were produced on GPC cubes for curing temperature of 60 ° C with curing ...
Abstract (EN): The approach to residual oil saturation during the immiscible displacement of oil as predicted by the multiphase Darcy equations is studied. It is well known that when the capillary pressure term is neglected, one arrives at the Buckley-Leverett formulation according to which the inlet face attains residual oil saturation instantaneously. This result may, however, be strongly influenced by the inclusion of the capillary pressure term. In this paper it is shown that when the relative permeability and capillary pressure functions have power law dependencies on the saturation deviation from residual oil condition, the long time solution exhibits a power law decay toward residual saturation. Moreover, the power law decay solution is found to be unique and independent of the initial condition. The relationship of this solution to the classical Buckley-Leverett result is shown. Finally, generalization to the time varying flow rate case is addressed. As a verification of the theoretical ...
Although it has been shown to possess viable engineering properties, an overwhelming majority of the fly ash produced from coal combustion is still placed in storage or disposal sites. Similarly, sludges generated from various water treatment operations are predominantly subject to the fate of land disposal. To prepare sludges for land disposal typically requires time consuming dewatering schemes, which can become extremely difficult to execute dependent upon the composition of the sludge and its affinity for water. Due to the pozzolanic properties of fly ash and its demonstrated ability to achieve relatively high strength in the presence of lime, the utilization of lime sludge amended fly ash may not only reduce the strain on continuously decreasing land space, but also provide a useful engineering material for possible utilization as a landfill cap, liner, or engineered fill. In the following study, lime sludge from a groundwater remediation project was added in various proportions to coal fly ...
The moving oil-water interface in a pure silica capillary tube of about 10 microns diameter was photographed through a microscope. The pictures show that the contact angle for water displacing kerosene did not change with changes in velocity, but when kerosene surfactant solutions were used to change the wetting and interfacial tension, the contact angle increased with velocity. A synthetic core saturated with kerosene or kerosene surfactant solutions in the presence of minimum interstitial water and in adsorption equilibrium with the respective surfactant solution was water flooded at various rates. Changes in flood rate caused changes in the residual oil saturation, having opposite effects on the residual saturations for kerosene and kerosene surfactant solutions. A correlation of residual oil saturation with dynamic contact angle shows that the dynamic angle does not fully explain the differences in residual oil saturation for different injection rates; however, when interfacial tension is ...
Coal ash, also referred to as , Coal Ash Basics On this page What is coal ash? What do power plants do with coal ash? How much coal ash is there? , Fly Ash, a .. Know More ...
Fly ash concrete grinding mill for sale in pakistan grinding plant of fly ash cost in pakistan fly ash grinding technologies clinker grinding mill fly ash grinding technologi is a mining equipment manufacturer and supplier in china more fly ash grinding mill fly ash for making concrete fly ash grinding mill in pakistanmillmaker currently the most promising ways of utilizing fly ash is to grind them by grinding. ...
Immediately after using the oil, remove any residual oil from the slide and from the front of the 100X objective by gently rubbing with lens paper dipped in xylol, toluene, or better, a xylol substitute designed for this purpose. Nearly all organic solvents, and especially xylol and toluene, are potentially hazardous. They are flammable and readily enter the boddy by direct absorption through the skin or lungs. Consistent high exposure to thses solvents has been linked with liver damage and potential carcinogenesis. Use all solvents sparingly when needed and always in a well- ventilated area. Once oil is placed on the slide, the 10X and 40X objectives will no longer be useful until the oil is removed. The oil will blur any image attempted with the lower magnifications. Use oil only when necessary and after completing all work at the lower magnifications. In order to return to work at the lower magnifications, the slide must be completely cleaned of any residual oil and dried. For this reason, ...
Composition information, derived using two dimensional gas chromatography, has been used in conjunction with the PETROTOX model to calculate this endpoint. The aquatic toxicity was estimated using the PETROTOX computer model, which combines a partitioning model (used to calculate the aqueous concentration of hydrocarbon components as a function of substance loading) with the Target Lipid Model (used to calculate acute and chronic toxicity of non-polar narcotic chemicals). PETROTOX computes toxicity based on the summation of the aqueous-phase concentrations of hydrocarbon block(s) that represent a hydrocarbon substance and membrane-water partition coefficients (Kmw) that describe the partitioning of the hydrocarbons between the water and organism. Results of computer modelling to estimate aquatic toxicity show no acute toxicity to algae at or below its maximum attainable water solubility (Redman et al., 2010b). ...
OCMA-550 to measure residual oil on components and concentrations of oil adhered on solids such as soil. Measurement can be easily made only by injecting the extracted water sample into the attached cell and setting it to the equipment. This model features a simple design which allows opening/closing of the door to setting of cell with just one hand. This is best for measurement of extracted samples such as evaluation of residual oil on components and measurement of oil contained in food.. ...
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice ...
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice ...
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice ...
Firstly we mainly have fully automatic type and semi automatic fly ash bricks machine. If you want to save labor fully automatic fly ash brick plant will be your ideal choice it is with PLC control system can work efficiently and automatically; while for semi automatic type brick machine it needs people to look after carefully so that can achieve smooth and efficient brick production.. Get Price ...
BMC Nephrol. 2016 Jul 13;17(1):82. [Skin] Microvascular endothelial dysfunction is associated with albuminuria and CKD in older adults. Seliger SL, Salimi S, Pierre V, Giffuni J, Katzel L, Parsa A. Abstract. BACKGROUND: Impairment in glomerular endothelial function likely plays a major role in the development of albuminuria and CKD progression. Glomerular endothelial dysfunction may reflect systemic microvascular dysfunction, accounting in part for the greater cardiovascular risk in patients with albuminuria. Prior studies of vascular function in CKD have focused on conduit artery function or those with ESRD, and have not examined microvascular endothelial function with albuminuria.. METHODS: We conducted a cross-sectional study among older hypertensive male veterans with stage 1-4 CKD, and hypertensive controls without CKD. Microvascular function was quantified by two distinct Laser-Doppler flowmetry (LDF) measures: peak responses to 1) post-occlusive reactive hyperemia (PORH) and 2) thermal ...
Due to the particle to particle variation of coal mineral properties and random coalescence of mineral particles during coal burnout, fly ash particle properties change from particle to particle. The variations of particle properties (e.g. SiO2 content, viscosity) can be mathematically described by random variables. Since bulk analysis of fly ash gives only the mean values of chosen random variables, it is considered insufficient to describe the fly ash behavior either in boiler slagging/fouling or in different concrete structures. SEM-AIA-EDAX technique was used to supply raw data for estimating the distribution functions of particle size and chemical compounds in Texas lignite minerals and fly ash and Eagle Butte fly ash. To determine the volume based size distributions of these samples from their area-based size distributions, Abelian transformation was used. To estimate the distribution functions of CaO and SiO2 contents of the samples, particle area fractions were used. The confidence ...
Green activists are very much worried over traces of toxic substances Along with spewing pollutants into the air, the fly ash being produced by the Narla Tatarao Thermal Power Station (NTTPS) and stored in the ever-growing ash tanks is causing surface and ground water pollution that will have devastating consequences for those living in villages…
Flotation of fly ash to recover coal contained therein is carried out in at least two steps, pH of the flotation slurry in the first step being 6-8, and in the last step lower than in the first step and below 6.5, preferably in the range of 3-5. The temperature may be ambient but is preferably 30 -60 C. As collector and frother several of those commonly employed are usable, preferably gas oil and pine oil, respectively. Desired pH is preferably achieved by sulphuric acid if desired in part by acidic flue gases. There is obtained separation into an almost carbon-free ash fraction and a carbonaceous fraction of low ash content.
May 01, 2018 The chemical compositions of the copper tailing powder determined by X-ray fluorescence XRF are listed in Table 1.It contains a great deal of CaO, SiO 2 and Al 2 O 3.While the total content of SiO 2, Al 2 O 3 and Fe 2 O 3 is 42.08, far 70 that required by the ASTM C618-15 standard specification for coal fly ash and raw or calcined natural pozzolan for use in concrete .. ...
C31/C31M Practice for Making and Curing Concrete Test Specimens in the Field. C33/C33M Specification for Concrete Aggregates. C39/C39M Test Method for Compressive Strength of Cylindrical Concrete Specimens. C125 Terminology Relating to Concrete and Concrete Aggregates. C150/C150M Specification for Portland Cement. C260/C260M Specification for Air-Entraining Admixtures for Concrete. C494/C494M Specification for Chemical Admixtures for Concrete. C497 Test Methods for Concrete Pipe, Manhole Sections, or Tile. C595/C595M Specification for Blended Hydraulic Cements. C618 Specification for Coal Fly Ash and Raw or Calcined Natural Pozzolan for Use in Concrete. C822 Terminology Relating to Concrete Pipe and Related Products. C989/C989M Specification for Slag Cement for Use in Concrete and Mortars. C1064/C1064M Test Method for Temperature of Freshly Mixed Hydraulic-Cement Concrete. C1157/C1157M Performance Specification for Hydraulic Cement. C1240 Specification for Silica Fume Used in Cementitious ...
2-(2-benzothiazolylazo)-5-dimethylaminobenzoic acid: used for the determination of cobalt in pepperbush leaves & coal fly ashes; structure given in first source
Green Cement Market to 2025 - Global Analysis and Forecasts Type (Fly Ash, Recycled Aggregate, Slag, and Others); End Users (Commercial, Residential, and Industries); Green - Market research report and industry analysis - 12035749
AppNote 1149: the analysis of sulfur in crude oil as per ASTM D4294 is demonstrated. The performance shown is applicable to light and heavy crude oils, residual oil, bunker fuels.762277075
Natural seeps in the Northern Apennines document a variability of fluids and reservoirs in terms of origin, age and evolution. Their spatial distribution appears controlled by the presence or absence of the tectonic overburden provided by the Ligurian nappe. The general trend of deepening of the Mesozoic basement toward the internal part of the thrust belt is reflected by the nature of the seeps, characterized by thermogenic methane and oil at the foothills, whereas the innermost seeps show occurrence of dry thermogenic gas suggesting overcooking of the residual oil. At the front of the Ligurian nappe, or in places never covered by it, the seepages are associated with biogenic methane related to bacterial degradation of the organic-rich intervals occurring in the Pliocene and Pleistocene marine succession. The coupling of geochemical and structural analysis allows reconstructing the tectono-thermal evolution of the belt, improving our knowledge on the processes acting within the reservoir and ...
Do they take the time to talk to you? Youre not bringing them the big bucks even if you make 8 frames a month, and bike frames are more of a PITA than their other work for the most part, so having them take the time and talk to you is really important in my mind. If they dont talk to you on *their* work, then I wouldnt expect them to take the time on *your* work.. - Pre-treatment. He does an iron phosphate treatment after sand-blasting. The blasting gets the steel some structure to more readily accept powder or paint and itll last longer. The phosphate treatment cleans the frame of any residual oil or other contaminants. Depending on how the frame comes to them, they may choose to do a quicker blasting or no phosphate treatment. But if you dont do any post-polishing of the frame after soaking off flux on the braze-ons, etc. then theyll need to do both. No extra charge to the overall cost of the PC, but no discount if they dont do it. The lugged fork i brought in was cleaned really well ...
Welcome to the second post of 50×4: Fifty Bagels, Fifty Dates, Fifty Races, Fifty States! Thats right, folks: were attempting to race in all fifty states (and DC and maybe some other places)! New York: Uticas Boilermaker 15K, July 14, 2019. What a beaut.Giant copper kettles no longer in use at Saranac.Maybe well add fifty…
This Purdue Boilermakers Dog ID Tag is the ideal choice for your furry friend. Made right here in the U.S.A., this officially licensed NCAA dog tag comes with a sturdy metal split ring for attaching your pet
Tests detected toxic substances in soil, water and ash samples taken miles from a chemical plant that flooded during Hurricane Harvey, caught fire and partially exploded, nearly 20 Houston-area residents said Monday.
qt12-15 hydraulic pressure block making machine mobile. QT12-15 Block Making Machine QT12-15 Concrete Raw Materials Hollow Block / Brick Machine is one of our sell best block making machine it is full automatic work with PLC suitable for making all types of hollow blocks solid block pavers curbstones and so on. it use our latest hydraulic pressure so can ensure the block quality very good.. Get Price ...
Fly ash contains metals such as cadmium, iron, lead, aluminum and zinc in its structure in appreciable amounts. These metals can leach out into surface and ground waters if fly ash is not properly disposed of. A similar ...
2020330Welcome to Dont Starve Wiki This wiki may contain many unmarked spoilers New users please read our Community Portal for Rules and Manual of Style. Also share your exotic Dont Starve experience in the Forum. A New Reign A new queen rises to the nightmare throne can you survive with your friends Metheus Pules Learn exciting new details about the lore of Dont Starve Together. Live Chat ...
Stephan will be using Sawk and Zebstrika against Ashs Palpitoad and Leavanny. Kotetsu will be using Hydreigon against Ashs Pignite. So, now we know who owns Hydreigon and Ash is finally using Palpitoad YAY! Heres an image BWS2-23: Ash VS Kotetsu! Secret Weapon Hydreigon!! Airdate: December 20, 2012 Picture: http://i45.*******.com/5zl55k.jpg (bottom half) Translation: Having advanced to the fourth round, Ash now has to
pulverizer used in thermal power plant,different bowl mill pulverizer in thermal power plant. coal mill pulverizer in thermal power plants 2coal pulverizermill system one of the critical power plant components that is relied upon to convert the energy stored in coal into electricity is the coal pulverizer or mill pulverizers speed low 10 thermal power plants august 29 2010 . view more.pulverizer mill power plant,2016/01/09· めまれている· pulverizer or inother name mill used for pulverized coal boiler of thermal power plant. the device pulverize coal to powder (pulverized coal) before blowing to burners of furnace..roller pulverizer for power plant,coal mill pulverizer in thermal power plants. nov 17, 2012 · 2.coal pulverizer/mill system one of the critical power plant components that is relied upon to convert the energy stored in coal into electricity is the coal pulverizer or mill. the coal flow is controlled by the feeder, allowing coal to flow into the pulverizer mill... ...
Ball Mill Thermal Power Plant In India Kingfact Ball Mill In Thermal Power Plant Ball mill in thermal power plant ball mill operation and maintenance in thermal power plant coal based thermal power plants coal mills ball tube mills are either pressurized or suction type in the pressurized type the hot primary air is used for drying the coal and to transport the milled coal to the furnace
I. INTRODUCTION The amount of coal fly ash (CFA) generated by coal-based thermal power plants has been increased at an alarming rate throughout the world. The disposal of such a big quantity of fly ash has become an important topic. Thus, several new approaches have been adopted to utilize fly ashes not only to reduce the cost of the disposal but also to minimize environmental impact. Those elements other than calcium detected in the fly ashes exhibit a broad range of toxic effects to humans, terrestrial and aquatic life and plants. A number of these elements have the potential to bioaccumulate, including arsenic, chromium, lead, mercury, nickel and zinc (Bridgen and Santillo, 2002). Particulate pollution is implicated in the worsening of respiratory illnesses such as asthma, and in the increasing of premature mortality from respiratory and heart diseases (Bridgen and Santillo, 2002). Recently, intensive efforts were made to promote the recycling of fly ash through zeolitization. Zeolites are ...
Find service providers of Thermal Power Plant Construction Service in Kochi India - Thermal Power Plant Construction Service verified companies listings from Thermal Power Plant Construction Service with catalogs, phone numbers, addresses and more.
Sun Types Of Coal Crusher Used In Thermal Power Plant. Coal mill crusher in thermal power plant crushing the coal into powder using ball mills in thermal a thermal power station is a power plant in which the prime mover is steam driven plants that use gas turbines to heat the water for conversion into steam use the pulverizers may be ball mills rotating drum grinders or other types of powdered.. Read More ...
Coal is India s most abundant resource, and it will continue to play a pivotal role in the country over the upcoming decades. There currently exist in India 82 coal-fired power plants, each of which uses around 1,000 tons of coal and produces about 13.34 tons of fly ash. Fly ash is, alone, a waste product and its responsible disposal poses a huge problem. From each power station, thousands of tons of fly ash are pumped into the ash ponds in the form of slurry (fly ash mixed with water) every day; these lagoons occupy millions of acres of agricultural land all over India. When coal is burned in a plant, two types of ash are produced: fly ash and bottom ash. Fly ash, otherwise known as pulverized fuel ash, is the residue of coal combustion and is comprised of very fine, powerdy glass-like particles. Because it is so fine, it is highly susceptible to wind erosion; its light color grayish white reflects more light than dirt, raising surface temperature. Bottom ash refers to the non
We are industrial boiler manufacturer and we have rich experience in providing thermal power plant with proper power boilers. We offer a wide range of boiler types including gas oil power plant boiler up to 75 TPH, biomass fired power plant boiler up to 75 TPH, coal fired circulating fluidized bed power boiler up to 280 TPH. Now there are hundreds of coal fired and coal mix-firing biomass fired power plant boilers running in thermal power plants.. Get a Quote ...
Hello,I work in the field of solar thermal power plants and have a question concerning photo-realistic ray tracing.So far we use simple Monte Carlo raytracers to calculate the efficiency of solar thermal power plants.Herefore sun rays are reflected at mirrors and focussed on absorbing structures (cylinders filled with oil, water,...)Since the raytracing tools we using to date are really simple, I thought of using a sophisticated raytracing kernel.The approach so far is
[randpic]Economiser in Thermal Power Plant - MCQs with answers2015-5-28 Economiser in Thermal Power Plant - MCQs with answers Q1. The major use of the Economiser is _____. a. Heat up the incoming water with exhaust steam. b. Heat up the pulverised f
types thermal power plant,Introduction and Types Of Thermal Power PlantThermal power plant or steam power plant is a generating station which converts heat energy of fossile fuels into e
SGS in India is providing LPGCL with a specialist team of civil, mechanical and electrical engineers, with working experience in supercritical thermal power projects. The team is performing on-site field quality inspection services to ensure compliance to specifications and codes, as well as adherence to an approved quality assurance plan. In addition to helping with specific quality issues, SGS is advising LPGCL on final plans and specifications.. According to Mr. Singh, the experience that SGS brings is invaluable: Most of the SGS inspectors are from the power sector or from cross country piping. This is helping us a lot in our day-to-day activities.. With the help of SGS, the project has been progressing smoothly. LPGCL expects the thermal power plant to be completed early next year. Mr. Singh says, I look forward to working with SGS again in the future.. ...
Yokogawa Electric Corporation announces that its subsidiary, Yokogawa India Ltd., has won an order from NTPC Ltd. to supply control systems for the first two 800 MW power generating units of the Lara supercritical coal-fired thermal power plant. | Yokogawa America
The North Chennai Thermal Power Station is a power station situated about 25 kilometres (16 mi) from Chennai city. It is one of the major power plants of Tamil Nadu and has a total installed capacity of 1,830 MW (2,450,000 hp). The North Chennai Thermal Power Station was commissioned in 1994 in the Thiruvallur district. It was built there due to its proximity to the Ennore Port, which also supplies Ennore Thermal Power Station. It has won various awards for productivity and reduction in auxiliary consumption. The coal necessary for the power station arrives from the Ennore Port. Recently a stator was brought to the station via the sea. In recent years due to shortage of coal in the state, coal is being imported to function the power plant. The North Chennai Thermal Power Station is polluting the area in Athipattu Pudunagar, Ennore and thus has taken away the livelihood of many residents. Air pollution is one part of it, as toxic gases get free when coal is burned and the dust of the coal that is ...
Clay liners have been widely used to contain toxic and hazardous waste materials. Clays absorb contaminant cations due to their exchange capacity. To improve the performance of the clay liner, fly ash, a waste material arising from the combustion of coal has been studied as a pre-filter material. In particular, the retention of lead by two different fly ashes was studied. The influence of pH on retention as well as leaching characteristics are also examined. The results obtained from the retention experiments by the permeameter method indicate that fly ash retains the lead ions through precipitation in the pores as well as onto the surface when the ambient pH value is more than 5.5, and through adsorption when the pH value is less than 5.5. It has been observed that fly ash did not release the retained lead ions when the pH value is between 3.5 and 10.0. Hence, the retention of lead ions by fly ash is likely to be permanent since the pH of most of the municipal landfill leachates are within 3.7 ...
Coal Mill In thermal power plant, coal mill pulverizer is used in the milling process to crush and grind coal into powder SBM offer types of coal mill for powder plant. ...
Buy Prefabricated Steel Space Frame Coal Storage In Thermal Power Plant from Qingdao XGZ Steel Structure Co.,Ltd,Steel Structure Workshop Distributor online Service suppliers.
The Anpara thermal power plant in Dibulganj, Uttar Pradesh. Local people are forced to live with a coal power plant right in their backyard.
The Anpara thermal power plant in Dibulganj, Uttar Pradesh. Local people are forced to live with a coal power plant right in their backyard.
WASHINGTON - The U.S. Environmental Protection Agency (EPA) is releasing action plans developed by 20 electric utility facilities with 70 coal ash impoundments, describing the measures the facilities are taking to make their impoundments safer. The action plans are a response to EPAs final assessment reports on the structural integrity of these impoundments that the agency made public last May. Coal ash was brought prominently to national attention in 2008 when an impoundment holding disposed coal ash waste generated by the Tennessee Valley Authority failed, creating a massive spill in Kingston, Tennessee, that released more than 5 million cubic yards of coal ash to the surrounding area and is regarded as one of the worst environmental disasters of its kind in history. Shortly afterwards, EPA began overseeing the cleanup, as well as investigating the structural integrity of impoundments where coal ash waste is stored ...
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A new approach to diagnose faults of boilers in thermal power plants is proposed and a hybrid-intelligence data-mining framework is developed to extract hi
SCWR (Supercritical Water Reactor) is one of the promising Generation IV nuclear systems, which has higher thermal power efficiency than current pressurized water reactor. It is necessary to perform the thermal equilibrium and thermal power calculation for the conceptual design and further monitoring and calibration of the SCWR. One visual software named H-Power was developed to calculate thermal power and its uncertainty of SCWR, in which the advanced IAPWS-IF97 industrial formulation was used to calculate the thermodynamic properties of water and steam. The ISO-5167-4: 2003 standard was incorporated in the code as the basis of orifice plate to compute the flow rate. New heat balance model and uncertainty estimate have also been included in the code. In order to validate H-Power, an assessment was carried out by using data published by US and Qinshan Phase II. The results showed that H-Power was able to estimate the thermal power of SCWR.
Permasalahan limbah industri semakin berkembang menjadi permasalahan global yang serius. Hal ini mengakibatkan perlakuan dalam pengolahan limbah industri menjadi topik global karena limbah dari berbagai sumber dapat terakumulasi di tanah atau masuk ke dalam sistem perairan. Logam berat seperti tembaga banyak dihasilkan antara lain oleh industri pelapisan logam (plating), pencampuran logam (alloy) dan baja, pewarna, kabel listrik, insektisida, jaringan pipa, dan cat (Notodarmojo 2005; Sarkar et al. 2010) . Logam ini berpotensi merusak sistem fisiologi manusia dan sistem biologis lainnya jika melewati tingkat toleransi. Oleh karena itu berdasarkan Kep-51/MenLH/10/1995 keberadaan ion Cu di batasi tidak boleh lebih dari 2 ppm untuk limbah cair golongan 2 dan 0,6 ppm untuk limbah industri plating. Beberapa metode perlakuan untuk mengolah ion logam berat dalam limbah industri telah dilaporkan dalam beberapa literatur. Di antara metode tersebut adalah netralisasi, presipitasi, pertukaran ion, biosorpsi ...
Dominion has narrowed its differences with environmental groups over how to dispose of coal ash, but the conflict is not easily resolved, and uncertainty about the final outcome prevails.. by James A. Bacon. Dominion Virginia Power has settled disagreements with two foes over its plans to discharge coal ash wastewater from its Possum Point and Bremo power stations into Virginias rivers and streams, but the battle over coal ash disposal isnt going away. Not only are the state of Maryland and the Potomac Riverkeeper Network appealing the wastewater-discharge permit for Possum Point, but Dominion still must acquire solid-waste permits for both plants.. Also, within the next year or so, Dominion will file permit applications for its legacy coal ash ponds at Chesterfield Power Station, while Appalachian Power Co. plans to close and cap an ash pond at its Clinch River Power Station. Determined to hold the power companies to the strictest standards possible, environmentalists have vowed to scrutinize ...
This paper presents a series of tests for characterizing the structural behavior of fibre reinforced concrete subjected to different loading. The experimental program involves investigation of fly ash replaced concrete with two types of fibres i.e. Steel fibre and polypropylene fibre. Plain concrete and conventionally fly ash replaced reinforced concrete specimens have also been casted and tested in the laboratory. The mechanical properties of Conventional M30 grade of concrete and concrete with cement replaced by fly ash and reinforced with steel and polypropylene fibres of three volume fractions of 0.2% to 1.4% are studied. This research is to study about the mechanical properties of fly ash with steel and polypropylene as a strengthening material.. Author(s) Details. Dr. S. ...
Just before the second anniversary of the Dan River coal ash spill, the NC Department of Environmental Quality (DEQ) held public hearings on basin closures across the state. At the center of the public comment period, and a series of hearings across the state, was determining the priority for closure among the 14 Duke Energy owned coal ash sites. The final rankings will determine both the closure clean-up process and a closure deadline.. To inform residents and involve them in the DEQ public comment period, Working Films organized six Coal Ash Stories events in towns and cities where the hearings will be held: Shelby, Goldsboro, Salisbury, Charlotte, Winston Salem, and Walnut Cove. We teamed up with Appalachian Voices, Clean Water for North Carolina and NC Warn to plan the tour. We also partnered with community based partners in each location, including Broad Riverkeeper, French Broad Riverkeeper, Down East Coal Ash Coalition, Yadkin Riverkeeper, Central Piedmont Sierra Club, Catawba ...
Dr. Li Hui Quan, a researcher at Chongqing University recently presented at the recent Coal Ash Asia conference in Beijing, China from July 21-24, 2017. The following is the fully translated abstract of their research. For more information, or to contact this researcher please contact the team at Asian Coal Ash Association.. Thermal power generation is an important component of Chinese energy. Shanxi and Inner Mongolia are regarded as the most important energy bases of China. Large amounts of coal gangue, fly ash, desulfurization gypsum and waste denitration catalyst emerge during the processes of coal mining and coal to electricity conversions. This causes terrible environmental problems due to the low waste utilization ratio. Many metal elements such as Al, Li and Ga, enrich coal-related solid wastes. Our team proposes a theoretical system of the mild separation of active components, the coordinated control of mineral structure and the step by step extraction of associated elements.. We found ...
Fluoride removal from aqueous solution by adsorption using fly ash cenospheres (FAC) modified with paper mill lime mud (LM) as composite adsorbent had been investigated. The characterization of FAC and composite adsorbent were analyzed by Scanning electron spectroscope (SEM), Energy dispersive spectrometer (EDS), Brunauer emmett teller (BET) and Fourier transform infrared (FTIR), which demonstrated that the porous structure of composite adsorbent was obtained after surface modification. Adsorption of fluoride on modified fly ash cenospheres was fitted with pseudo-second-order model and Langmuir model. Response surface methodology (RSM) was employed to investigate the effects of F- concentration, pH, adsorbent dosage and temperature on the removal efficiency. Analysis of variance (ANOVA) was used to test the adequacy of the mathematical models. The Nonelectrostatic model of modified fly ash cenospheres adsorbing fluoride was built through the Generalized composite method, indicating that two ...
Use Of Ball Mill In Thermal Power PlantElectrical Engineering Tutorials: Thermal Power Plant Layout and Operation. Basic Operation :A thermal power plant basica
Concentrating solar thermal power (CSP) turns sunlight into electricity. CSP requires clear skies and strong sunlight, which is abundant in the southwestern United States, Mexico, North Africa, the Middle East, Central Asia, South Africa and Australia. Southern Europe and parts of China and India may also have sufficient solar resources.. Concentrated solar thermal power provides firm, peak, intermediate or base load capacities due to thermal storage and/or fuel back-up.. CSP technology showed especially strong growth in Spain and the United States since 2006. Installed capacities near 1 gigawatt (GW) and projects under development or construction exceed 15 GW worldwide.. Investment costs range from USD 4.2 to 8.4 per watt, depending on the solar resource and the size of the storage. Levelised electricity costs range from US cents 17-25 per kWh, mostly depending on the quality of the solar resource.. Energy costs are expected to decrease as more suppliers enter the market and as a result of R&D ...
Jan 24, 2015 ... Keywords: Rare earth elements, Coal fly ash utilisation ... to some conventional ores, the wastes of coal combustion could and ... REE extraction process from fly ash is considered to be far less intensive than that of mining a raw product. ... including the possibility of beneficiation and simplicity and cost of.... Read More ...
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Fluid catalytic cracking and hydrocracking are a means of making diesel and gasoline from the residual fuel oils produced in refineries.
The most widespread thermal EOR method relies on steam injection. Steam is employed to warm up the reservoir, increase oil mobility and in turn enhance heavy oil recovery. In steam injection processes, recovery of oil is limited by steam channeling due to reservoir heterogeneities. Early breakthrough implies large consumption of steam and incomplete reservoir drainage. A low cost viable option to minimize heat loss consists in generating steam foam in situ. Foam will reduce steam mobility, increase its apparent viscosity and reduce steam channeling. Foam should form and flow in reservoir swept regions containing residual oil saturation. For a field application, where the residual oil saturation may vary from 0 to 30% depending on the recovery method applied, any effect of the oil on foam stability becomes a crucial matter. The scope of this work is to design an appropriate foaming surfactant solution in reservoir representative conditions of 250°C. We study the impact of crude oil on its ...
Surface property of rock affects oil recovery during water flooding. Oil-wet polar substances adsorbed on the surface of the rock will gradually be desorbed during water flooding, and original reservoir wettability will change towards water-wet, and the change will reduce the residual oil saturation and improve the oil displacement efficiency. However there is a lack of an accurate description of wettability alternation model during long-term water flooding and it will lead to difficulties in history match and unreliable forecasts using reservoir simulators. This paper summarizes the mechanism of wettability variation and characterizes the adsorption of polar substance during long-term water flooding from injecting water or aquifer and relates the residual oil saturation and relative permeability to the polar substance adsorbed on clay and pore volumes of flooding water. A mathematical model is presented to simulate the long-term water flooding and the model is validated with experimental results. The
Our power plant boiler portfolio addresses all fuels with PC boilers that can burn a wide range of hard coals, lignite, and oil/gas, and CFB for both conventional and difficult to burn fuels. Our experienced-based steam boiler design enables the burning of a wide fuel range, while reducing the impact of slagging, fouling, corrosion and erosion in the furnace.. Read more ...
Construct, assemble, maintain, and repair stationary steam boilers and boiler house auxiliaries. Align structures or plate sections to assemble boiler frame tanks or vats, following blueprints. Work involves use of hand and power tools, plumb bobs, levels, wedges, dogs, or turnbuckles. Assist in testing assembled vessels. Direct cleaning of boilers and boiler furnaces. Inspect and repair boiler fittings, such as safety valves, regulators, automatic-control mechanisms, water columns, and auxiliary machines.. Sample of reported job titles: Boiler Maker, Boiler Mechanic, Boiler Repairman, Boiler Service Technician, Boiler Technician, Boilermaker, Boilermaker Mechanic, Boilermaker Pipe Fitter, Boilermaker Welder, Service Technician ...
Abstract. Low-calcium fly ash (LC-F) and high-calcium fly ash (HC-F) were used to synthesize corresponding zeolites (LC-Z and HC-Z), then for adsorption of Se(
Reducing Phosphorus Release from Paddy Soil by Coal Ash and Phospho-Gypsum Mixture - paddy soil;phosphorus;phosphogypsum;coal ash;
By Paul Napoli The Injury Board A new study has identified 39 additional coal ash dumpsites in 21 states that are contaminating water supplies with heavy metals, showing the government is inadequately monitoring these disposal sites and lax at regulating the toxic waste. The study is entitled IN HARMS WAY: Lack of Federal Coal Ash…
Online Coal Ash Analyzers market report delivers vital data concerning the drivers, limitations & challenges, product spectrum, application scope, competitive dynamics, and impact of COVID-19 on CAGR. The latest Online Coal Ash Analyzers marke...
By TERRI LIKENS [email protected] Celebrity environmentalist Erin Brokovich will be in town Friday with a legal team. The American Coal Ash Association is beating her to the punch. The American Coal Ash Association, a Colorado-based trade group whose mission is proclaimed as
EghtesadOnline: The replacement of dilapidated gas turbine in 52-year-old Besat Thermal Power Plant in southern Tehran with a domestically-manufactured F-class gas turbine will help curb water consumption by 95% from 18 million liters to 800,000 liters per day, director of combined-cycle projects at the Thermal Power Plants Holding Company said. ...
Experienced technicians guidance is available on the phone, and on the internet. One or more engineers will be dispatched to the quarry site to help install the customers plants. Necessary training about machine daily maintenance to local workers is provided also. ...
IRecco has received inquiries seeking clarification of job offers received in unsolicited fashion. These job offers appear to come from organisations falsely pretending to recruit on behalf, or by people…. ...
Precautions for pre-commissioning activities of a new boiler, TG and other major equipments and parameters to be monitored and controlled during normal operations of the above equipments ...
... a coal-fired power plant near Knoxville, where, in December of 2008, billions of gallons of coal ash were spilled. The toxic ... Coal Ash Spill". "Florida Governor Signs Popular Pro-Solar Bill Into Law - Solar Industry". 19 June 2017. "Senate Bill 90 (2017 ... Due to the event, the Senate Environment and Public Works committee held a hearing on the Tennessee coal ash spill asking Smith ...
... contamination from coal ash and coal mining, and working with communities and farmers on efforts to maintain and restore the ... The coal ash piles are connected to the Vermilion Power Station, which was closed by Dynegy in 2011. The Power Station was ... "Coal Ash Threat Dead Ahead!," The Mike Nowak Show, Accessed February 3, 2019.. ... Brighton, Jack, "Loose Regulations Allow Coal Ash To Threaten River," Illinois Public Media News, September 7, 2018. Accessed ...
... 炭 coal; 灰 ash; 土 earth; 地 ground or earth; 砂 sand; 沙 sand; 泥 mud; 塩 salt; 丹 cinnabar; 硫 sulphur; 酸 acid, oxygen; 窒 nitrogen; 材 ...
Following a February 2, 2014, coal-ash spill that was the third-largest of its kind in US history, the US Attorney's Office ... Williams became embroiled in controversy over the safety of household well water near coal ash ponds. In testimony in May 2016 ... "US investigates NC coal ash spill". Associated Press. February 13, 2014. Retrieved February 23, 2014. Biesecker, Michael ( ... Curliss, J. Andrew; Jarvis, Craig (August 13, 2014). "McCrory misstated Duke Energy holdings, sold stock after coal-ash spill ...
Jordan voted against a bill that passed the cost of Duke Energy's coal ash spill to its ratepayers. He voted for another bill ... Frank Holleman, a senior attorney at the left-wing Southern Environmental Law Center said "this coal ash bill is damning proof ... Jordan voted against an amendment that would have protected ratepayers from paying to cleanup the coal ash. ... Tiberii, Jeff (June 29, 2016). "Lawmakers Compromise On Coal Ash Regulation". North Carolina Public Radio. Retrieved 2018-10-25 ...
CS1 maint: discouraged parameter (link) Wheeler, Timothy B. (March 8, 2009). "Debate smolders over coal ash safety". Baltimore ... is used as fill at four nearby surface coal mines. The plant produces about 370,000 short tons (340,000 t) of ash each year. ... of coal from Maryland each year, which tends to be of a higher sulfur content. During 2007, 100 percent of the coal burned at ... Fly and bottom ash from Warrior Run, which is highly alkaline due to the limestone used by the FBC boiler, ...
The Sierra Club alleges that the San Juan Coal Company has improperly dumped more than 40 million tons of coal ash and sludge ... "ISS - America's hidden coal ash threat". Retrieved 2011-08-17. CS1 maint: discouraged parameter (link) " ... CS1 maint: discouraged parameter (link) "Environmental group plans to sue over coal ash at San Juan mine". New Mexico ... Waterflow lies between two coal-fired power plants and southwest of a large coal mine. The area also has many oil wells. While ...
Fly ash, also known as flue ash, is one of the residues generated following the combustion of coal and lignite. In the past it ... "How Much are Coal Combustion Products Worth?" The American Coal Ash Association Website. "Cansolv CO2 Capture: The Value of ... Fly ash, depending on its use, can attract a range of prices. The best arises from concrete-quality ash which fetches $22-$49 ... 1 September 2013 "Coal Fired Power Plants in Canada - Power Plants Around the World". Archived from the original on 2012-12-05 ...
Following a February 2, 2014 coal ash spill which was the third-largest of its kind in US history, the US Attorney's Office ... "APNewsBreak: US investigates NC coal ash spill". Associated Press. 2014-02-13. Archived from the original on 18 February 2015. ... Biesecker, Michael (2014-02-14). "INVESTIGATION INTO NC COAL ASH SPILL WIDENS". Associated Press. Retrieved 2014-02-23. Ivan ... In early 2008, Duke Energy announced a plan to build the new, 800-megawatt Cliffside Unit 6 coal plant 55 miles (89 km) west of ...
"For Coal and Ashes". New-York Tribune. August 17, 1906. p. 1. Retrieved July 22, 2020 - via . "Broad-exchange ... The owner of 53 Beaver Street sued Broad Exchange Company in 1905 after the company delivered coal and hauled out ashes to ... so it could transport the coal and ashes through 41 Broad Street, and then leased out the upper floors of that building. The ... "Marble Structure for Broad Street: Building Will Replace Famous $325,000 Coal Chute Bought In 1906 by Owners of Broad Exchange ...
... uranium and thorium radioisotopes naturally found in coal and concentrated in heavy/bottom coal ash and airborne fly ash.[103] ... An international consortium has set out to explore the commercial extraction of uranium from uraniferous coal ash from coal ... Uraniferous coal ash[edit]. Annual release of "technologically enhanced"/concentrated Naturally occurring radioactive material ... "Sparton produces first yellowcake from Chinese coal ash" (PDF). World Nuclear News. October 2007. Archived from the original ( ...
Although coal ash is much less radioactive than spent nuclear fuel by weight, coal ash is produced in much higher quantities ... "Coal Ash Is More Radioactive than Nuclear Waste". Scientific American. 2007-12-13. Alex Gabbard (2008-02-05). "Coal Combustion ... "Coal ash is not more radioactive than nuclear waste". CE Journal. 2008-12-31. Archived from the original on 2009-08-27. "Yankee ... Coal-burning plants, in particular, produce large amounts of toxic and mildly radioactive ash resulting from the concentration ...
Duke Energy claimed that coal ash basins from Riverbend Steam Station has fully been excavated in March 2019. United States ... "Duke Energy, state reach deal on coal ash". Gaston Gazette. Retrieved 2020-12-08. v t e. ... The Riverbend Steam Station was a 454-MW coal-fired electrical power plant, owned by Duke Energy. It was originally slated for ...
Waste produced by the plant consists of fly ash and coal ash which are stored in the Curley Hollow CCR Landfill with a ... coal gob (a waste product from abandoned coal mines), and bio-fuels. Using coal gob as a fuel source not only re-purposes waste ... The burning of gob coal is expected to remove hazardous waste from prior coal mines, preventing toxins from continuing to leach ... such as ash and limestone, expected to be emitted was 2.4 million tons because of the way the coal will be burned in a CFB. It ...
CS1 maint: discouraged parameter (link) Litvak, Anya (December 1, 2016). "Bruce Mansfield coal ash headed to West Virginia". ... Murray Energy was the primary supplier of coal for Bruce Mansfield. The coal was shipped from West Virginia. FirstEnergy ... "Huge coal-fired Shippingport plant officially dedicated ... CS1 maint: discouraged parameter (link) Wade, Will (August 9, 2019). "Coal Unit at Center of Trump Bailout Bid to Shut 19 ...
In fact, the fly ash emitted by a [coal] power plant-a by-product from burning coal for electricity-carries into the ... "Coal Ash Is More Radioactive Than Nuclear Waste". Scientific American. Retrieved 28 June 2017. Beth Daley. Leaks imperil ... Nuclear power plants in normal operation emit less radioactivity than coal power plants. Unlike coal-fired or oil-fired ... they should worry about coal-fired plants. "The waste produced by coal plants is actually more radioactive than that generated ...
Coal fly ash is a product that experiences heavy amounts of leaching during disposal. Though the re-use of fly ash in other ... ISBN 978-0-13-101367-4. "Kingston Fossil Plant coal fly ash slurry spill", Wikipedia, 2019-11-18, retrieved 2019-11-21 Li, Li; ... Iyer, R. (2002). "The surface chemistry of leaching coal fly ash". Journal of Hazardous Materials. 93 (3): 321-329. doi:10.1016 ... The leaching of fly ash is only concerning if the fly ash has not been disposed of properly, such as in the case of the ...
... to dispose of coal ash from three coal-fired power plants operating in the Baltimore area. The site of the hazardous waste ... CS1 maint: discouraged parameter (link) Timothy B. Wheeler (January 4, 2011). "State approves coal ash landfill in South ...
... regulations on coal ash (carcinogenic leftover waste produced by coal plants), and an Obama-era executive order on protections ... "EPA rolls back Obama-era coal ash regulations". CNN. Retrieved July 24, 2018. Fears, Darryl (June 20, 2018). "Trump just erased ... Despite rhetoric about boosting the coal industry, coal-fueled electricity generating capacity declined faster during Trump's ... CS1 maint: discouraged parameter (link) "Cost of New E.P.A. Coal Rules: Up to 1,400 More Deaths a Year". Retrieved September 1 ...
"Coal Ash Is Killing 900,000 Fish Each Year In A North Carolina Lake, Study Finds". ThinkProgress. U.S. Army Corps of Engineers ... "Duke's coal ash kills, deforms fish, study says". Charlotte Observer. December 3, 2013. Archived from the original on January ... allegedly due to coal ash from the Sutton power plant of Duke Energy). erroneously attributed this contamination to Sutton Lake ...
... with remediation of the coal ash ponds ongoing as of mid-2019. Duke Energy claimed that coal ash basins from Riverbend Steam ... The discharge has come from a lack of lining in older coal ash ponds containing namesake waste which threatens the water ... "Duke Energy, state reach deal on coal ash". Gaston Gazette. Retrieved 2020-12-08. Division of Water Quality seeks public ... Riverbend Steam Station was a 454 megawatt, coal-fired generating facility located in Gaston County, North Carolina. It was ...
Controversy with the plant include, the desire of the plant to dump its coal ash on its site. The EPA has said the plant should ... "LG&E coal ash landfill hits another wall". The Courier-Journal. Retrieved 2018-07-06. "Trimble County Generating Station , LG&E ... It has been recognized as one of the most environmentally friendly coal fired plants in the country. ... Kentucky to be placed in an underground limestone mine that already holds a permit to accept coal combustion waste. According ...
Coal ash waste slurry has been piped there from FirstEnergy's Bruce Mansfield Power Plant since 1974. The reservoir at Little ... FirstEnergy has dumped more than 20 billion gallons of coal ash and smokestack scrubber waste into the body of water which has ... FirstEnergy must stop dumping coal ash at the site by 2016, pay a penalty of $800,000, provide clean water to local residents, ... Hopey, Don (3 April 2014). "Little Blue Run coal ash site to close sooner; Plant owner must contain pollution". Pittsburgh Post ...
"Coal Ash Is More Radioactive than Nuclear Waste". Scientific American. Archived from the original on 12 June 2013. Retrieved 18 ... All of these sources combined only supplied 1.3% of global energy in 2013 as 8 billion tonnes (1.8×1013 lb) of coal was burned ... Their conclusion: It would have saved the lives of 1,100 people a year who succumb to air pollution released by coal burning ... Living within 50 miles of a coal plant adds 0.03 mrem per year. In its 2000 report, "Sources and effects of ionizing radiation ...
Xiao-quan, Shan; Wen, Wang & Bei, Wen (1992). "Determination of gallium in coal and coal fly ash by electrothermal atomic ... Headlee, A. J. W. & Hunter, Richard G. (1953). "Elements in Coal Ash and Their Industrial Significance". Industrial and ... Some coal flue dusts contain small quantities of gallium, typically less than 1% by weight. However, these amounts are not ... Its by-product status means that gallium production is constrained by the amount of bauxite, sulfidic zinc ores (and coal) ...
"Duke to repair leaky pipe at coal ash dump in Catawba County". Retrieved 21 April 2018. [1] [2] Markwith, ... Two ash ponds are adjacent to and discharge into Mountain Island Lake. The EPA High Hazard list also includes ash ponds on Lake ... On December 11, 2014, Duke Energy received approval from North Carolina to dump coal ash (containing arsenic, lead, thallium ... Retrieved 2008-04-20.[permanent dead link] "EPA Coal Ash Fact Sheet". EPA/ Retrieved 2009-11-19. Press, MICHAEL ...
In 2014, residents living near the Buck Steam Station in Dukeville were told that "coal ash pits near their homes could be ... Fisher, Hugh (2014-05-06). "Riverkeeper: Coal ash from Buck steam plant poses toxic threat". Salisbury Post. Archived from the ... Associated Press (2014-06-17). "Dukeville concerns over coal ash: 5 things to know". The Denver Post. Archived from the ... "Duke Energy - Buck". BREDL - Blue Ridge Environmental Defense League - Coal-fired Power Plants. Archived from the original on ...
... environmental lawyer go toe to toe over NC's coal ash problems". WRAL. Retrieved 2014-11-07. "Duke to remove coal ash from ... "Frank Holleman with the Southern Environmental Law Center discusses the Governor's decision to allow the coal ash bill (SB 729 ... where he has led the effort to litigate against power utilities over the disposal of coal ash, especially in the wake of the ... 2014 Dan River coal ash spill. "Frank Holleman won't seek re-election". Associated Press. Retrieved 2014-11-07. "Digest of ...
Burning 55 short tons (49 long tons; 50 t) of coal a day produces 4 short tons (3.57 long tons; 3.63 t) of ash. Coal ash is a ... Company officials compared coal ash to "harmless sand" and planned to keep Badger in its original coal-burning configuration. ... A new combustion control system will allow the ship to be more efficient by burning less coal and generating less ash. Badger ... Penalties Increased for Failing to Cease Coal Ash Discharge to Lake Michigan by the End of 2014 Sailing Season" (Press release ...
... coal, etc.). The metal oxides (Fe2O3) can leach out of activated carbon resulting in discoloration. Acid/water-soluble ash ... Ash content[edit]. Ash reduces the overall activity of activated carbon and reduces the efficiency of reactivation: the amount ... When derived from coal[1][2] it is referred to as activated coal. Activated coke is derived from coke. ... Soluble ash content can be very important for aquarists, as ferric oxide can promote algal growths. A carbon with a low soluble ...
... ash content of UCG syngas is estimated to be approximately 10 mg/m3 compared to smoke from traditional coal burning where ash ... Underground coal gasification converts coal to gas while still in the coal seam (in-situ). Gas is produced and extracted ... Coal Gas,, retrieved 12.12.2013 *^ [1], BBC - Coal gasification: The clean energy of the future?, ... Advanced Coal Technologies Conference. Laramie: University of Wyoming.. *^ Copley, Christine (2007). "Coal". In Clarke, A. W.; ...
"Carbón Dulce (Sweet Coal)". Retrieved December 25, 2013.. *^ "ALcoy Three Kings Parade". Instituto de ... Another interpretation of "Epiphany season" applies the term to the period from Epiphany to the day before Ash Wednesday. Some ... in Methodist usage the Epiphany Season includes all the Sundays between that date and Ash Wednesday, which for 1964 will be ... "coal" (really black candy) for the times they have not been good during the year. The legend told of her is that, having missed ...
... individuals who are exposed to ionizing radiation and other emissions due to the regular production and maintenance of coal ash ...
His remains were cremated and the ashes were scattered according to Hindu tradition in a private ceremony in the Ganges and ... The home had an outdoor toilet and its only heat came from a single coal fire. In 1949, the family was offered a council house ... His close family scattered his ashes according to Hindu tradition in a private ceremony in the Ganges and Yamuna rivers near ...
... ash, hawthorn, elm, oak, yew, pine, cherry and apple.[68] Other trees have been naturalised, introduced especially from other ...
It removed hydrogen sulphide by exposing the sour gas to dissolved soda ash. Although previously used on coal gas, the ... Coalbed methane or coal seam methane is natural gas within the structure of coal. Special production techniques to remove this ... As coal, hydroelectric and nuclear-powered generation facilities came under attack for environmental reasons, gas stepped in ... So has the development of water-free natural gas from coal in the Horseshoe Canyon Formation in Central Alberta. First ...
97 boar spears with ash staves trimmed with leather; 2 boar spears graven and gilt; 126 white halberds with plain staves; 95 ... 40 barrels of old coal powder; 40 lbs of oakum or tow, rotten; 14 cartouches (cartridges) with powder for demi-culverins; 60 ... 292 boar spears with ash staves trimmed with crimson velvet, fringed with red silk; 162 boar spears knotted and leathered; ...
COAL-TAR PITCH, HIGH TEMPERATURE *^ Dr W J Smith, Tamutech Consultancy. Mapping the Development of UK Biorefinery Complexes ... C and the catch fire and fuel product is wood ash. If wood is heated away from air, the moisture is first driven off and until ... Pitch can be natural or manufactured, derived from petroleum, coal tar[16] or plants. ... or coal-tar. Tar is a black mixture of hydrocarbons and free carbon obtained from a wide variety of organic materials through ...
Half of his ashes were buried in the Kremlin Wall Necropolis; an urn containing the other half of his ashes was sent to Chicago ... General Bell had been the manager of one of the coal mines in Cripple Creek where the strike was taking place.[47] It wasn't ...
This means that a nation's dependence on oil is reduced, and substituted with use of locally available sources, such as coal, ... Hansen, B.; Jensen, A.; Jensen, P. (2013). "Performance of diesel particulate filter catalysts in the presence of biodiesel ash ... it was found that though the presence of sodium and potassium carbonates aided in the catalytic conversion of ash, as the ... as important as petroleum and the coal-tar products of the present time." ...
Coal Oil Point. *Dawson Los Monos Canyon. *Eagle Lake Field Station. *Elliott Chaparral ...
Labov, Ash & Boberg (2006), pp. 129, 131. *^ Kirk Hazen, "African-American Appalachian English." The Encyclopedia of Appalachia ... lamp oil/coal oil - kerosene[30]. *lay out - to be truant; e.g., 'to lay out of school', 'to lay out of work'[51] ... Labov, William; Ash, Sharon; Boberg, Charles (2006), The Atlas of North American English, Berlin: Mouton-de Gruyter, ISBN 3-11- ...
The temperatures are relatively low in dry ash gasifiers, so the fuel must be highly reactive; low-grade coals are particularly ... A smaller fraction of the ash is produced either as a very fine dry fly ash or as a black colored fly ash slurry. Some fuels, ... Some fuels have ashes with very high ash fusion temperatures. In this case mostly limestone is mixed with the fuel prior to ... Most coals are suitable for this type of gasifier because of the high operating temperatures and because the coal particles are ...
... and so the only fossil-bearing rocks that can be dated radiometrically are a few volcanic ash layers.[41] ... as geology and paleontology helped industrialists to find and exploit natural resources such as coal.[105] ...
FBC plants are capable of burning a variety of low-grade solid fuels, including most types of coal, coal waste and woody ... In its most basic form, fuel particles are suspended in a hot, bubbling fluidity bed of ash and other particulate materials ( ... Since this allows coal plants to burn at cooler temperatures, less NOx is also emitted. However, burning at low temperatures ... More than 95% of the sulfur pollutants in coal can be captured inside the boiler by the sorbent. The reductions may be less ...
Coal Oil Point. *Dawson Los Monos Canyon. *Eagle Lake Field Station. *Elliott Chaparral ...
Coal and oil began to be burned in large quantities during the 1800s. Both coal and oil are sufficiently old that they contain ... Cotton wool, cigarette ash, paper labels, cloth bags, and some conservation chemicals such as polyvinyl acetate can all be ...
"Coal Ash Is More Radioactive than Nuclear Waste". 2009-05-18. Retrieved 2009-05-18.. ... times more radiation per year than a comparatively sized nuclear power plant in the form of toxic coal waste known as fly ash.[ ... "Senator Reid tells America coal makes them sick". 2008-07-10. Archived from the original on 2009-05-17. Retrieved 2009-05-18.. ... As other common sources of energy, coal power plants are estimated to kill 24,000 Americans per year due to lung disease[132] ...
The five most common tree species are buckthorn, green ash, boxelder, black cherry, and American elm. These resources perform ... Braidwood-Coal City, IL UC 11,607 19.5 ,10 11 Harvard, IL UC 8,575 13.3 ,10 ...
The highest concentration ever found was in Hartley coal ash with as much as 1.6% germanium.[53][54] The coal deposits near ... Another source of germanium is fly ash of power plants fueled from coal deposits that contain germanium. Russia and China used ... The deposits in China are located mainly in the lignite mines near Lincang, Yunnan; coal is also mined near Xilinhaote, Inner ... while at least 112,000 t will be found in coal reserves.[57][58] In 2007 35% of the demand was met by recycled germanium.[51] ...
Substituting the fly ash byproduct of coal burning practices for cement in concrete production[7] ... "Optimizing the Use of Fly Ash in Concrete." Portland Cement Association *^ "Used and Waste Oil and Grease for Biodiesel - ...
... in the false hope of finding minable coal seams.[29] In Perry County, Pennsylvania along the Juniata River the false coal beds ... The Tioga ash bed zone consists of eight ash beds labeled according to their stratigraphic order from A (oldest) to H (youngest ... The volcanic origin of the ash is evidenced by its distinctive mineralogy-the ash was deposited directly upon the water, so its ... Seaweed and marine plants probably formed the false coal. True coal is formed from terrestrial plants, which only began to ...
Coal Oil Point. *Dawson Los Monos Canyon. *Eagle Lake Field Station. *Elliott Chaparral ...
The swamp area was rich with oak, hickory, ash, walnut, elm and maple trees. This led to the establishment of numerous sawmills ... The northwestern end of the city grew as an industrial center with a coal powered electrical generating facility and several ...
Other related landfills include Construction and Demolition Debris Landfills and Coal Combustion Residual Landfills. ... fly ashes from incineration or the stabilized output of mechanical biological treatment plants may still be deposited.[citation ...
Lower non-greenhouse gas pollution (smoke, ash, and chemicals), which improves health in the home. ...
... coal. Black coal, hard coal, stone coal, blind coal, Kilkenny coal, crow coal, craw coal, black diamond. Metamorphic ... South Africa exports lower-quality, higher-ash anthracite to Brazil to be used in steel-making.[citation needed] ... hard coal, stone coal,[7][8] dark coal, coffee coal, blind coal (in Scotland),[3] Kilkenny coal (in Ireland),[7] crow coal or ... "Coal characteristics: Indiana Center for Coal Technology Research Basic Facts File #8" (PDF). Indiana Center for Coal ...
Coal Oil Point. *Dawson Los Monos Canyon. *Eagle Lake Field Station. *Elliott Chaparral ...
When the coal is burned, most of these metals become concentrated in the ash (the principal exception being mercury). Coal ash ... Coal ash and slag can be recognised by the presence of off-white grains in soil, gray heterogeneous soil, or (coal slag) bubbly ... Historical deposition of coal ash used for residential, commercial, and industrial heating, as well as for industrial processes ... In addition to lead, coal ash typically contains variable but significant concentrations of polynuclear aromatic hydrocarbons ( ...
... is produced mainly from burning coal in coal-fired power plants. Two main by-products of coal ash combustion (the ... Fly ash is a very fine, powdery residue from coal-fired plants (like factories). Fly ash is captured in the stack. Onsite coal ... To learn more about coal ash and how EPA regulates it, visit here: icon ... Bottom ash is unlikely to be in coal ash ponds because it is typically disposed of immediately after combustion and sent to a ...
Coal Ash (Coal Combustion Residuals, or CCR). Coal combustion residuals, commonly known as coal ash, are created when coal is ... Information about Coal Ash Cleanups. *EPAs response to the TVA coal ash release in Kingston, TN ... EPA supports the environmentally sound recycling of coal ash and has developed regulations on the safe disposal of coal ash in ... Coal ash is one of the largest types of industrial waste generated in the United States. In 2012, 470 coal-fired electric ...
... husbands rushed from their Knoxville homes to rescue the residents of Roane County from the 7.65 million tons of coal ash ... Coal ash cleanup worker Ansol Clark has bruises on his hands from working the coal ash site in Kingston.. (Photo: Calvin ... Coal ash spill cleanup worker Harvey Bass speaks about his health complications in Knoxville on Thursday, Nov. 8, 2018. Bass ... Coal ash spill cleanup worker Tommy Johnson speaks about his health complications Thursday, Nov. 8, 2018. Johnson used to walk ...
With even the lightest wind, the tiny particles take flight, blotting out the sky like a thick sandstorm of ash, highly ... A local drives his motorbike while ash chokes the sky above a coal ash dam in Shanxi province. ... A local drives his motorbike while ash chokes the sky above a coal ash dam in Shanxi province. With even the lightest wind, the ... tiny particles take flight, blotting out the sky like a thick sandstorm of ash, highly hazardous to people, as the fine ...
"Coal ash is non-hazardous, and the company does not believe this incident poses a risk to public health or the environment. The ... Categories: Southeast NewsTopics: coal ash spill, Florence environmental damage, Florence North Carolina, Florence sewage spill ... The company was ordered two years ago to clean up coal-ash ponds in North Carolina. It came under pressure after about 39,000 ... Florence Floods Cause Sewage, Coal Ash Spills. By Mark Niquette and Christopher Flavelle , September 16, 2018 ...
... Tuesday, October 11, 2011 By Frank Ackerman, Triple Crisis , Op-Ed ... Coal Ash Regulation Would Create 28,000 Jobs Tuesday, October 11, 2011 By Frank Ackerman, Triple Crisis , Op-Ed ... So its not surprising that, in my new report on the impacts of coal ash regulation, I found that it would increase employment ... Strict regulation of coal ash disposal would create a net increase of 28,000 jobs. This conclusion doesnt, by itself, clinch ...
In one of the latest reincarnations of this idea, the electric utility industry claims that regulating the disposal of coal ash ... So its not surprising that, in my new report on the impacts of coal ash regulation, I found that it would increase employment ... Strict regulation of coal ash disposal would create a net increase of 28,000 jobs. This conclusion doesnt, by itself, clinch ... In one of the latest reincarnations of this idea, the electric utility industry claims that regulating the disposal of coal ash ...
Supreme Court to weigh in on whether the federal Clean Water Act applies to pollution from a coal ash dump ... The groups sued to force the Tennessee Valley Authority to clean up coal ash pits at its Gallatin Fossil Plant. Court documents ... Environmental groups want ruling on coal ash water pollution. Two Tennessee environmental groups are asking the U.S. Supreme ... Supreme Court to weigh in on whether the federal Clean Water Act applies to pollution from a coal ash dump. ...
... mercury-get left behind in ash after the coal is burned. Yet coal ash has been wildly unregulated in some places. Despite ... Coal ash photo and Colstrip map courtesy of Flickr users The Tardigrade and The Sierra Club via a Creative Commons license.. ... But even EPAs coal ash rules are really only a stopgap measure. The better solution would be to pass a comprehensive climate ... One would classify coal ash as hazardous. The other-favored by the electricity industry-would regulate it as non-hazardous. For ...
Coal ash synonyms, Coal ash pronunciation, Coal ash translation, English dictionary definition of Coal ash. n. Fine particulate ... ash sent up by the combustion of a solid fuel, such as coal, and discharged as an airborne emission or recovered as a byproduct ... fly ash. (redirected from Coal ash). Also found in: Thesaurus, Encyclopedia. fly ash. n.. Fine particulate ash sent up by the ... Coal ash - definition of Coal ash by The Free Dictionary ...
The study looked at information for Georgias 12 coal-powered plants made public through the 2015 federal Coal Combustion ... "If coal ash is left buried in groundwater, then the contamination we see now will only get worse, and it will continue for ... Coal ash contains a variety of toxins - including arsenic, cadmium and lead. Those toxins can cause illnesses such as cancer ... Georgia Power is in the process of shutting down all 29 of its coal ash ponds at 11 plants statewide. The company submitted ...
Read more about coal ash:. 600 Coal Ash Dump Sites Found in 35 States: Is There One Near You?. Should Coal Ash Be Getting LEED ... Environmental Integrity Project and the Sierra Club.Coal ash is the by-product of burning coal for power, and there are ... At least 28 coal ash sites in 17 states have already released chromium to groundwater at levels exceeding by thousands of times ... But there are no federal safeguards to protect the public and the environment from toxic coal ash. As such, we are part of a ...
... originating from coal ash sites. (338 signatures on petition) ... of coal ash ponds and 75% of coal ash landfills nationwide.. ... Demand DNR establish a coal ash permitting program. *Demand testing for all the identified coal ash toxins every time utilities ... See newly released report, Coals Poisonous Legacy: Groundwater Contamination by Coal Ash Across the U.S. with summary data on ... Coal ash pollution of groundwater, drinking water, and surface water (rivers, streams, lakes) with toxic waste chemicals is a ...
... held a Coal Ash Technical Seminar on October 18 in Chantilly, VA....GSE ... GSEs new Coal Ash Barrier System was also unveiled during the seminar. The system addresses increasing concerns about coal ash ... covered a variety of topics of concern to the coal ash industry, particularly in regard to coal ash combustion and storage. ... GSE Environmental Hosts Coal Ash Technical Seminar. GSE Holding, Inc., (NYSE:GSE) the leading global manufacturer and provider ...
... in which residential tap water has been affected by coal ash.. Coal ash ranks among the nations largest industrial waste ... to clean up Virginia-based Dominion Energys 11 coal ash ponds and six coal ash landfills in the state. And five Dominion ... "At a time when the EPA - now being run by a coal lobbyist - is trying to roll back federal regulations on coal ash, these new ... About a quarter of coal plants did not register data because they either closed their coal ash dumps before the regulation took ...
... contains high levels of radioactivity from coal ash ponds, including at Marshall Steam Station on Lake Norman, according to ... Besides coal ash cleanup, Duke wants customers to cover other costs including investments to modernize power plants, generate ... Meanwhile, Duke is still seeking approval from a state regulator to pass coal ash cleanup costs on to customers in a territory ... Radioactivity is now one more contaminant "added to the stack of seemingly countless others" found at Dukes coal ash sites, ...
Radioactive elements in coal and fly ash should not be sources of alarm. The vast majority of coal and the majority of fly ash ... and form of radioactive elements in coal and fly ash.. Abundance of Radioactive Elements in Coal and Fly Ash. Assessment of the ... Forms of Occurrence of Radioactive Elements in Coal and Fly Ash. The USGS has a current research project to investigate the ... Radioactive Elements in Coal and Fly Ash: Abundance, Forms, and Environmental Significance ...
When the mound of wet coal ash began to rise in the landfill across the road from her pretty yellow house with the peonies and ... Bush that coal ash isnt hazardous. The agency now is reconsidering that finding. It was expected to unveil a new coal ash rule ... in a study posted on the American Coal Ash Association Web site, said that health risks from coal ash are minimal. ... The coal industry opposes regulating coal ash as a hazardous waste. It argues that there are no toxic hazards, that the ...
The chief executive of the Tennessee Valley Authority said that dikes holding toxic coal ash at the Kingston Fossil Plant had ... which operates the coal-burning power plant responsible for an enormous flood of coal ash in East Tennessee late last month, ... Plant That Spilled Coal Ash Had Earlier Leak Problems. By JOHN M. BRODER. JAN. 8, 2009. ... She and several other committee members said they would press for new coal ash regulations, including a requirement that it be ...
Duke mobilized lobbyists to undermine state coal ash rules. The result was a new coal ash law that would allow some of the coal ... Tennessee is home to eight coal-fired plants and 44 ash ponds. If TVA has its way, 13.4 million tons of toxic coal ash will be ... What Exactly Is Coal Ash?. Though Duke has sought rate increases to make customers pay for cleaning up ash pits, utilities are ... There are coal-fired plants and 32 coal ash impoundments in Virginia. Eight of these ponds have been classified by the EPA as a ...
To amend the Solid Waste Disposal Act to ensure the safe disposal of coal combustion residuals. In, a database of ... Ensuring Safe Disposal of Coal Ash Act, H.R. 2396, 117th Cong. (2021). ... "H.R. 2396 - 117th Congress: Ensuring Safe Disposal of Coal Ash Act." 2021. July 29, 2021 ,https://www.govtrack ... 2021). H.R. 2396 - 117th Congress: Ensuring Safe Disposal of Coal Ash Act. Retrieved from ...
Words similar to tva kingston fossil plant coal ash spill ▸ Words that often appear near tva kingston fossil plant coal ash ... "tva kingston fossil plant coal ash spill" is defined. General (1 matching dictionary). *TVA Kingston Fossil Plant coal ash ... We found one dictionary with English definitions that includes the word tva kingston fossil plant coal ash spill: Click on the ... Search for tva kingston fossil plant coal ash spill on Google or Wikipedia ...
This image may be the most iconic in recent memory when it comes to coal ash. On Christmas Eve, 2008 a coal ash pond dam broke ... that 39 sites in 21 states where coal-fired power plants dump their coal. ash are contaminating water with toxic metals such as ... reused coal ash is for structural fill or to fill up empty mines. The. report said those uses could result in water ... "Coal ash is putting drinking water. around these sites at risk.". EIP is a nonpartisan organization that advocates for ...
Peoria and Vermilion are asking legislators to create stronger regulations for the removal and cleanup of coal ash ponds in ... Coal ash is the waste left over from burning coal, which contains arsenic, selenium and mercury that can impact the air and ... Dexter added that public input is being sought on how the coal-ash ponds are removed, saying current regulations allow ... As coal companies continue to go bankrupt across the U.S., they should have a bond set aside to pay for the cleanup and closure ...
A federal judge says hundreds of blue-collar laborers have amassed enough evidence to allow a jury to decide if the coal ash is ... Jacobs: Prove coal ash kills. Even coal ash producers, such as TVA, acknowledge the substance - a byproduct of burning coal to ... Ansol Clark holds a vial of coal ash collected from the Kingston coal ash spill site on July 8, 2017.. (Photo: Calvin Mattheis ... Coal ash is produced primarily from the burning of coal in coal-fired power plants. Wochit ...
... a federal lawsuit to stop toxic water pollution that is leaking into the Apalachicola River from an aging 40-acre coal ash dump ... Five More Things You Need to Know About Coal Ash. Five things that the 60 Minutes investigation on coal ash didnt tell you. ... Protecting Floridas Apalachicola River from Coal Ash Pollution. Piles of coal ash in unlined pits threaten one of the souths ... Coal Plant Exploits Private Information Ruling to Hide Toxic Ash. A coal plant is exploiting a court ruling concerning private ...
A coal industry lobbying organization called the American Coalition for Clean Coal Electricity has been pushing back against ... "Three coal plants in total send their coal ash on barges down the Monongahela River to LaBelle, where trucks then load the ash ... with two coal slurry ponds and millions of cubic yards of coal combustion waste, also called coal ash, thats piled dozens of ... The additional ash needs a place to go because its current destination, a 1,700-acre coal ash impoundment lake in Beaver County ...
In addition, when coal ash is recycled, costs related to coal ash disposal sites are avoided. There are two forms of coal ash ... The particles that remain after burning coal are called coal ash, principally consisting of fly ash and bottom ash. Other coal ... Depending on the type of coal that was burned, the chemical composition found in coal ash can vary. Coal ash obtained from the ... An example of unencapsulated coal ash is distributing the ash on icy roads in the winter. Even though reusing coal ash ...
Red Ash Coal Camp was an unincorporated community and coal town located in Whitley County, Kentucky, United States. U.S. ... Geological Survey Geographic Names Information System: Red Ash Coal Camp, Kentucky v t e. ...
  • Onsite coal ash ponds should mainly consist of fly ash, which is made up of heavy metals (for example, mercury , arsenic , copper , and chromium ). (
  • A Duke Energy Corp. landfill near Wilmington, North Carolina, failed under the assault of Tropical Storm Florence, spilling about 2,000 cubic yards of coal ash that can carry toxic mercury, arsenic and lead. (
  • drinking water from wells near one type of ash disposal facility can create a 1 in 50 chance of getting cancer from arsenic in the water . (
  • Toxic materials that don't go out the stack-arsenic, cadmium, lead, selenium, mercury-get left behind in ash after the coal is burned. (
  • Coal ash contains a variety of toxins - including arsenic, cadmium and lead. (
  • Beyond hexavalent chromium, coal ash contains arsenic , lead, cadmium, mercury, selenium and many other chemicals that can cause cancer and damage the nervous system and organs, especially in children. (
  • Table 2: Estimated Doses of Arsenic Contaminated-Fly Ash. (
  • Of particular concern were the pH (potential for hydrogen), particulate matter, and arsenic levels measured in the fly ash. (
  • Fly ash also contains metals, including arsenic (EPA 2005). (
  • The report, published jointly by the Environmental Integrity Project and Earthjustice, found that 91 percent of the nation's coal-fired power plants reported elevated levels of contaminants such as arsenic, lithium, chromium and other pollutants in nearby groundwater. (
  • In Pennsylvania, levels of arsenic in the groundwater near a former coal plant were several hundred times the level the EPA considers safe for drinking. (
  • Although these elements are less chemically toxic than other coal constituents such as arsenic, selenium, or mercury, questions have been raised concerning possible risk from radiation. (
  • More than 1,300 dumps across the United States contain billions of gallons of fly ash, which contains heavy metals including arsenic, cadmium, chromium, lead and mercury. (
  • WASHINGTON - A study released on Thursday finds that 39 sites in 21 states where coal-fired power plants dump their coal ash are contaminating water with toxic metals such as arsenic and other pollutants, and that the problem is more extensive than previously estimated. (
  • Coal ash is the waste left over from burning coal, which contains arsenic, selenium and mercury that can impact the air and drinking water of the communities, said Jessica Dexter, staff attorney for the Environmental Law and Policy Center. (
  • The workers and their survivors say supervisors of the California government contractor TVA put in charge of the clean-up of the 5 million cubic yards of coal ash - loaded with toxins including arsenic and radium - lied to them, denied them protective gear and tampered, influenced and destroyed test results. (
  • Tennessee and TVA tests of the coal ash showed that it contains traces of heavy metals such as arsenic, beryllium, selenium and thallium, some at levels that exceed federal safety standards. (
  • Arsenic: When high amounts of arsenic is inhaled or ingested through coal ash waste, diseases such as bladder cancer, skin cancer, kidney cancer and lung cancer can develop. (
  • Coal ash contains toxic contaminants like mercury, arsenic and lead, and environmental groups have long warned holding ponds are not only prone to ruptures, but also leak into groundwater. (
  • A new EIP Report describes TVA coal ash pollutants that were measured over the past five years, including arsenic, boron, and cobalt, exceed health guidelines. (
  • Five years after the billion-gallon coal ash spill in Kingston, TN, a new report from Environmental Integrity Project (EIP) shows that decades of mismanagement have led to toxic groundwater pollution at all 11 Tennessee Valley Authority (TVA) coal plants, with concentrations of arsenic, boron, cobalt, manganese, and other pollutants exceeding health-based guidelines in dozens of down-gradient wells. (
  • An Earthjustice review of 14 industry reports has found unlined pits filled with coal ash waste are leaking toxic substances - including arsenic - into groundwater near old coal-burning power plants in eight states, according to a press release on Wednesday. (
  • Most of the coal ash dumps, or "ponds" are unlined, and with many of them already found to be leaking deadly chemicals, including arsenic, hexavalent chromium, lead and thallium (rat poison), the monitoring reports are critical to the safety of the country's drinking water. (
  • Meanwhile, the utility's own groundwater monitoring reports reveal signs of contamination from arsenic and other toxins in coal ash. (
  • The resulting slurry contained heavy metals from the coal ash such as arsenic, cadmium, mercury and selenium, which in high concentrations can be toxic to aquatic life. (
  • The focus of a new report released Monday by the Environmental Integrity Project is on coal ash, residue from burning coal that contains mercury, arsenic and cadmium among other contaminants. (
  • More than half of the plants had unsafe levels of at least four toxic components of coal ash, including 60 percent with unsafe amounts of lithium and 52 percent with unsafe amounts of arsenic. (
  • The coal industry generates more than one hundred million tons of coal ash every year - the nation's second largest waste stream after household garbage - and it's full of harmful toxins like arsenic, lead and mercury. (
  • Last year, the EIP released several reports showing that drinking water near coal ash disposal sites in states across America contained dangerous levels of heavy metals and other toxins, including arsenic. (
  • These spills can have significant consequences, because coal ash contains contaminants such as mercury and arsenic. (
  • Bearing a list of metals - arsenic, lead, mercury and others concentrated in coal ash - he arrived at a clinic specializing in toxic exposures. (
  • The water which saturates the coal-ash has arsenic at over 900 micrograms per liter (mg/L), according to McLane. (
  • A 2006 report from the National Academy of Sciences found 24 potentially hazardous metals in coal ash - like arsenic and cadmium - that medical researchers have linked to a host of ailments. (
  • And despite the presence of toxins like arsenic, chromium and lead found in coal ash, these reuses go largely unregulated by state and federal officials. (
  • An Environmental Protection Agency (EPA) report states that some “potentially toxic pollutants,†such as mercury and arsenic, found in coal ash, could present serious problems. (
  • “Many of the common pollutants found in coal combustion wastewater (e.g., selenium, mercury, and arsenic) are known to cause environmental harm and can potentially represent a human health risk,†said the report, quoted the Tennessean. (
  • It] had extremely high arsenic numbers in the groundwater, and in 2015 Duke announced they would clean up that site by removing the ash to lined storage. (
  • Avner Vengosh, professor of geochemistry and water quality at Duke's Nicholas School of the Environment , told "Until now, metals and contaminants such as selenium and arsenic have been the major known contaminants of concern in coal ash. (
  • Potentially toxic concentrations of heavy metals inherent to coal ash include arsenic and mercury. (
  • The tiny fly ash particles, which are often microscopic in size, contain high concentrations of arsenic, selenium and other toxic elements, many of which have been enriched through the combustion process. (
  • First, we measure the abundance of certain metals, such as arsenic, selenium and antimony, that we know are more enriched in coal ash than in normal soil," Wang said. (
  • Even though coal ash contains dangerous amounts of toxic chemicals like arsenic, chromium, and lead, it has been subject to less regulation than household garbage in most states. (
  • How could EPA conclude that coal ash, which is loaded with carcinogens including arsenic, cadmium, and chromium, is not a hazardous waste? (
  • Because most of the ash sites are often saturated with groundwater and lack liners to prevent leakage, pollutants - including arsenic (a carcinogen), boron (which can cause nausea and vomiting), and lithium have been seeping into groundwater, the Susquehanna River, and Black Gut Creek, according to the groups' August 2018 notice. (
  • In general, it's understood that coal ash is a mix of a variety of heavy metals, including, but not limited to, arsenic, mercury, lead, chromium , barium, selenium and cadmium - all of which are recognized by the U.S. Environmental Protection Agency as hazardous heavy metals individually. (
  • Coal ash contains arsenic, lead, mercury and other elements that may be hazardous in sufficient concentrations. (
  • The company was ordered two years ago to clean up coal-ash ponds in North Carolina. (
  • The North Carolina Department of Environmental Quality "has been closely monitoring all coal ash impoundments that could be vulnerable," the agency said in a statement. (
  • Friday's constructive order from the North Carolina Utilities Commission in the Duke Energy Progress rate case effectively allows recovery of a majority of the utility's historical costs related to coal ash basin closures, Arnold tells investors in a research note. (
  • Material flows out of a flooded coal ash dump at a North Carolina power plant toward the Cape Fear River. (
  • The 2015 regulations dictated how coal ash must be stored across the country and were finalized in the wake of two high-profile spills in Tennessee and North Carolina, which collectively contaminated waterways and damaged nearby homes. (
  • Under North Carolina law passed following a 2014 ash spill in the Dan River, Duke must close all 32 of its North Carolina ash basins. (
  • And by the end of the year, she said, all of the ash Duke produces in North Carolina will be either recycled or stored in dry, lined landfills. (
  • As North Carolina approves fracking tests, one community says it is disproportionately affected by pollution from coal ash ponds. (
  • It is specifically aimed at uncovering whether environmental racism has played a part in the placement of coal ash waste water and fracking test sites in Stokes County, North Carolina. (
  • DURHAM, N.C. -- A new Duke University study has found high levels of selenium in fish in three North Carolina lakes receiving power plants' coal ash waste. (
  • North Carolina has new coal ash management rules in place to close coal ash ponds at some power plants, Brandt noted. (
  • This despite two prominent natural disasters in recent U.S. history - one in Tennessee, the other in North Carolina - where rivers washed coal ash ponds away, polluting drinking water and creating hundreds of millions of dollars in cleanup costs. (
  • Duke Energy (NYSE:DUK) estimates the cost of reforming how it stores and manages coal ash in North Carolina could total $2 billion to $10 billion, over as much as 20 to 30 years, depending on which option is chosen - or mandated by the state. (
  • And in North Carolina, some residents have been using bottled water for almost three years after concerns about coal ash-contaminated groundwater were raised. (
  • RALEIGH, N.C. (AP) - The state of North Carolina says it has secured an agreement with Duke Energy to excavate nearly 80 million tons (72.5 million metric tons) of coal ash at six facilities. (
  • This agreement is a historic cleanup of coal ash pollution in North Carolina, and the Department of Environmental Quality and community groups throughout the state have provided essential leadership in obtaining it," said Southern Environmental Law Center senior attorney Frank Holleman in a written statement. (
  • Stephen De May, North Carolina president of Duke Energy, said in a statement that the agreement "significantly reduces the cost to close our coal ash basins in the Carolinas for our customers, while delivering the same environmental benefits as full excavation. (
  • Cleanup became a priority in North Carolina after a 2014 leak from a Duke Energy site left coal ash coating 70 miles (110 kilometers) of the Dan River on the state's border with Virginia. (
  • The cost to Dominion Energy Virginia customers for recycling coal ash or moving it into more secure landfills is growing, because the proposed bill now recognizes that Dominion's North Carolina electricity customers cannot be forced to pay by the Virginia General Assembly or the State Corporation Commission. (
  • The EPA launched coal ash disposal standards in 2015 in response to a series of spills of Tennessee and North Carolina that sent toxic materials into rivers. (
  • More recently, a spill of ash into the Dan River in North Carolina has highlighted the hazards of impoundments. (
  • Amy Adams' hand is covered with coal ash after she pulls it from the Dan River in North Carolina. (
  • Living 1,000 feet from a Duke Energy coal-ash pond in Salisbury, North Carolina, Ms. Graham had her well water tested in May 2014 for any toxins that may have leaked from the waste dump into her water supply. (
  • Ms. Graham is one of many residents living near the 32 coal-ash ponds spread throughout North Carolina that store waste from coal-fired power plants. (
  • State lawmakers last year passed the North Carolina Coal Ash Management Act, requiring Duke to pay all the cleanup costs for the spill, which are estimated at $2 billion to $10 billion. (
  • Researchers from North Carolina State University have developed a technique that uses bacteria to produce "biocement" in coal ash ponds, making the coal ash easier to store and limiting the risk of coal ash spills into surface waters. (
  • North Carolina has long been a leader in promoting the use of coal ash as structural fill. (
  • Even though North Carolina began overseeing coal ash fills in 1994 after groundwater contamination was found at one fill site, state records and independent research show that the rules -- which were cooperatively written by utilities and state regulators -- have failed to prevent coal ash fills from damaging the environment and threatening public health. (
  • The public record shows that dry coal ash was used as a substitute for fill dirt at more than 70 locations across North Carolina from the late 1980s through 2009 (click here for a spreadsheet with details about the locations). (
  • Both of those victories came before the February 2014 spill at a Duke Energy coal ash impoundment on the Dan River in North Carolina, but shortly afterwards SELC checked into the company's coal ash lagoons in South Carolina-we had already begun our extensive work in North Carolina-and discovered how dangerous they were and how they were violating the law. (
  • After last week's coal ash spill, which poured at least tens of thousands of tons of the toxic byproduct of burnt coal into the Dan River, state regulators want to delay their own settlement with Duke Energy over its storage of ash at coal plants across North Carolina. (
  • Water test results are starting to come in from the part of the Dan River affected by a coal ash spill at a retired Duke Energy plant on the border of North Carolina and Virginia. (
  • While environmental and community advocacy groups have been warning about the dangers of coal ash impoundments for years, it has taken another coal ash catastrophe to spur the State of North Carolina to take action on dangerous coal ash dumpsites . (
  • The investigation quickly widened to include all North Carolina coal ash dumpsites, additional Duke and DENR staff and records from the NC Utilities Commission (NCUC), raising more questions about inappropriately close ties between the utility and those charged with protecting North Carolina's public and environment. (
  • The tests also showed that soil samples near Bull Run Fossil Plant in Tennessee generally contained significantly higher levels of fly ash than those from North Carolina, and that the highest concentration was in soil from the Claxton Community Park, a playground and recreational site located outside the Bull Run plant. (
  • The U.S. Environmental Agency expressed concern last year that a proposed deal between North Carolina regulators and Duke Energy to settle pollution violations at two of the company's coal ash dumps was too lenient. (
  • The North Carolina Department of Environment and Natural Resources released more than 13,000 pages of public records in recent days as a response to media requests following the Feb. 2 coal ash spill at a Duke plant in Eden, which coated 70 miles of the Dan River in toxic gray sludge. (
  • In response to the Tennessee coal ash spill, the Environmental Protection Agency identified 49 high-hazard coal ash ponds across the country, a dozen of which are in North Carolina. (
  • The nation's largest electric company now wants regulators in North Carolina to force consumers to pay nearly $200 million a year to clean up the toxic byproducts of burning coal to generate power. (
  • Duke Energy's clean-up plan includes excavating coal ash and moving it away from waterways at eight of the 14 North Carolina sites and two others in South Carolina. (
  • The company plans to dry out, cover and leave in place the ash in other North Carolina pits. (
  • Bottom ash is unlikely to be in coal ash ponds because it is typically disposed of immediately after combustion and sent to a landfill. (
  • Coal combustion residuals, commonly known as coal ash, are created when coal is burned by power plants to produce electricity. (
  • Fine particulate ash sent up by the combustion of a solid fuel, such as coal, and discharged as an airborne emission or recovered as a byproduct for various commercial uses. (
  • Environmental Protection Agency (EPA) is proposing the first of two rules that will amend the regulations for the disposal of coal combustion residuals, also known as CCR or coal ash , from electric utilities and independent power producers. (
  • Conservation groups Environmental Integrity Project and Earthjustice released the study Thursday looking at information for Georgia's 12 coal-powered plants made public through the 2015 federal Coal Combustion Residuals Rule . (
  • Although the source of the fly ash is unknown, it is most likely a byproduct from the combustion of coal in an electric generating plant. (
  • GSE Holding, Inc., (NYSE:GSE) the leading global manufacturer and provider of geosynthetic lining products and services, held a Coal Ash Technical Seminar on October 18 in Chantilly, VA. The seminar, led by a panel of seven of the world's top geosynthetics experts, covered a variety of topics of concern to the coal ash industry, particularly in regard to coal ash combustion and storage. (
  • Several topics concerning the use of geosynthetics for Coal Combustion Residuals were covered, with particular focus on drainage and filtration alternatives and design considerations for constructing new disposal cells over legacy ponds. (
  • Assessment of the radiation exposure from coal burning is critically dependent on the concentration of radioactive elements in coal and in the fly ash that remains after combustion. (
  • During coal combustion most of the uranium, thorium, and their decay products are released from the original coal matrix and are distributed between the gas phase and solid combustion products. (
  • Therefore, the concentration of most radioactive elements in solid combustion wastes will be approximately 10 times the concentration in the original coal. (
  • The USGS has a current research project to investigate the distribution and modes of occurrence (chemical form) of trace elements in coal and coal combustion products. (
  • If during coal combustion some uranium is concentrated on ash surfaces as a condensate, then this surface-bound uranium is potentially more susceptible to leaching. (
  • To amend the Solid Waste Disposal Act to ensure the safe disposal of coal combustion residuals. (
  • The complaint said the 500-acre site contains an abandoned coal refuse pile made up of about 40 million tons of waste, with two coal slurry ponds and millions of cubic yards of coal combustion waste, also called coal ash, that's piled dozens of feet deep on top of the coal refuse. (
  • Coal ash, also known as coal combustion residuals (CCRs), is the mineral residue that remains from burning coal. (
  • Other coal combustion by-products are boiler slag, flue gas desulfurization gypsum, and other kinds of flue gas desulfurization residues. (
  • Coal ash obtained from the combustion of bituminous coal is constituted principally of aluminum oxide (Al2O3), calcium oxide (CaO) and silicon dioxide (SiO2). (
  • Across the board, we're seeing elevated selenium levels in fish from lakes affected by coal combustion residual effluents," said Jessica Brandt, a doctoral student in environmental health at Duke's Nicholas School of the Environment, who led the study. (
  • Selenium is a naturally occurring element that is concentrated in coal ash and other coal combustion residuals. (
  • The major objective of this project was to develop mixture proportions for controlled low-strength material (CLSM) using clean coal ash obtained from atmospheric fluidized bed combustion (AFBC). (
  • The plant's three coal-fired units were retired in March, but an estimated 3 million cubic yards of coal ash and other coal combustion residuals remain at the site. (
  • Coal ash is the residue from the combustion of coal. (
  • Coal combustion residuals - coal ash - are the environmental poster child of the moment, with the apocalyptic vision a hurricane or other event flooding the material into rivers. (
  • Fly ash is produced in large amounts by combustion in power and heating plants, notably in coal-burning plants. (
  • All these facilities have been assessed, are scheduled to be assessed, or do not have any units that qualify for assessment because they are closed, do not contain coal combustion residues (CCRs), or are below ground level. (
  • In the beginning, coal combustion waste was not included in RCRA, and in 1978 EPA proposed that coal ash be covered under the law as a special hazardous waste. (
  • That year, as required by the Bevill Amendment, the EPA published a proposal titled "Regulatory Determination on Wastes from the Combustion of Fossil Fuels" that concluded federal regulations for the disposal of coal ash - either under RCRA and/or the Surface Mining Control and Reclamation Act - were necessary to protect public health and the environment. (
  • Despite its hazardous contents, coal ash and other coal combustion wastes are not subject to federal safeguards - that's right, NO federal safeguards - and state laws governing coal combustion waste disposal are usually weak or non-existent. (
  • Fly ash, a coal combustion residue produced by Termotasajero in Colombia, has been hydrothermally treated after an alkaline fusion to produce zeolite without addition of silicon or aluminum. (
  • A team of researchers at Mexico's Center for Research in Advanced Materials is fabricating a thermal barrier coating, based on coal combustion byproduct fly ash, that pulls double duty to protect jet engines and reduce environmental pollutants. (
  • Coal ash ponds provide on-site storage for the captured waste products from generation, sometimes called coal combustion byproducts (CCB is the Maryland acronym, the federal government uses coal combustion residuals, (CCR)) at a power plant. (
  • The slurry contained both fly and bottom ash, collectively known as "coal combustion residuals" (CCRs) in the euphemistic lexicon of environmental regulation. (
  • In addition, the EPA is moving forward quickly to develop regulations to address the management of coal combustion residuals. (
  • The coal combustion industry has also argued that states should have the responsibility of regulating coal ash disposal, but states have also balked at reform in the face of cost, the Times reports. (
  • The radioactivity in the ash was determined to be five times higher than in normal soil and up to 10 times higher than in coal itself because of the way combustion in power plants concentrates radioactivity. (
  • The bill's sponsors were reacting to toxic coal ash (also known as coal combustion residual) seeping from storage ponds at the shuttered Dynegy Vermilion power plant near the Middle Fork of the Vermilion River. (
  • Fly ash is part of coal combustion residuals (CCRs) that are generated when a power plant burns pulverized coal. (
  • Coal combustion residuals are the largest industrial solid wastes produced in the United States. (
  • The Brunner Island coal-fired power plant, which opened in 1961, creates 442,000 tons of ash and other coal combustion wastes annually. (
  • Coal accounts for more than a third of electricity generation in the U.S., resulting in over 130 million short tons of coal combustion residuals (CCR) annually. (
  • Much of this work has focused on physical and chemical controls on soils and industrial byproducts, including coal combustion residuals. (
  • He is the Coal Combustion Practice Leader of Haley & Aldrich and a Senior Fellow at the IDEAS Center and the Energy Production Infrastructure Center (EPIC) at UNC Charlotte. (
  • He started and successfully ran a 25-person engineering company for nine years that specialized in landfill design, coal combustion by-product containment design, construction quality assurance (CQA), groundwater remediation, and forensic evaluation of failing geotechnical projects. (
  • His experience includes the development of waste shed studies, the evaluation of beneficial reuse plans for industrial byproducts, practical research for the beneficial reuse of coal combustion byproducts, and developing guidelines for reducing carbon emissions from wide variety of construction and waste disposal activities. (
  • Laborers who worked at the Kingston coal ash spill site speak out about their health complications and what they want the public to know. (
  • Betty Johnson, wife of coal ash spill cleanup worker Tommy Johnson, speaks about her husband's health complications Thursday, Nov. 8, 2018. (
  • A federal jury ruled in favor of hundreds of blue-collar laborers who say they were sickened during the Kingston coal ash spill cleanup operation and Jacobs Engineering endangered their health and safety. (
  • Last week a federal jury gave them hope they say has been sorely lacking since their husbands and hundreds more heavy equipment operators just like them responded to the nation's largest coal ash spill at the Tennessee Valley Authority Kingston Fossil Fuel Power Plant in December 2008 and wound up poisoned. (
  • More than 50 coal ash spill cleanup workers and workers' survivors are suiing Jacobs Engineering for unsafe working conditions that they allege lead to sickness and death at the cleanup site. (
  • Testimony at a three-week trial in Chief U.S. District Judge Tom Varlan's courtroom showed Jacobs and TVA successfully lobbied for lower standards for worker safety even as the laborers were still working to contain the massive spill of coal ash, which is filled with toxins and heavy metals. (
  • Tom Bock served as safety manager for the cleanup of the 2008 coal ash spill in Roane County. (
  • The December 2008 Tennessee coal ash spill. (
  • Uniontown's Arrowhead Landfill so far has taken in 1.8 million tons of coal ash from one of the nation's biggest environmental disasters, the December 2008 spill from a coal ash pond at a Tennessee Valley Authority power plant in Kingston, Tenn. (
  • The committee chairwoman, Senator Barbara Boxer, Democrat of California, said the spill dramatized the need for strict regulation of fly ash and other waste from coal-fired power plants and for closer oversight of the T.V.A. Ms. Boxer was strongly critical of the Environmental Protection Agency for failing to declare coal ash a hazardous waste and for refusing to set national standards for its storage and disposal. (
  • Click on the first link on a line below to go directly to a page where "tva kingston fossil plant coal ash spill" is defined. (
  • Chief U.S. District Judge Tom Varlan shot down Jacobs Engineering's bid to have lawsuits filed by laborers at the TVA Kingston Fossil Fuel Power Plant December 2008 coal ash spill in Roane County tossed out without a trial. (
  • TVA contract workers remove coal ash from the edge of the Emory River next to the Kingston Fossil Plant on Nov. 8, 2012, as part of the cleanup from the December 2008 spill. (
  • The coal ash spill at the Kingston Fossil Plant is shown circa Dec. 22, 2008. (
  • Workers are removing 3 million cubic yards of ash sludge from the river in the first phase of the cleanup of the Dec. 22, 2008, spill. (
  • Catastrophic releases of coal ash like the Dan River spill of 2014 get all of the attention, but there is ongoing, continuous contamination of aquatic ecosystems from hundreds of coal ash ponds across the country," Brandt said. (
  • Workers who cleaned up a huge spill from a coal ash pond in Tennessee in 2008 are still suffering-and dying. (
  • Duke's handling of coal ash - the material left from burning coal to produce electricity - has become a state issue following Duke's spill of up to 39,000 tons of ash into the Dan River on Feb. 2. (
  • EIP Director Eric Schaeffer said, "As we approach the five-year anniversary of the nation's worst coal ash spill, TVA ought to be leading the effort to clean up groundwater contamination from its leaking landfills and ponds. (
  • The Knoxville News Sentinel has been investigating TVA's handling of coal ash and the claims by hundreds of disaster relief workers who have filed lawsuits saying they were sickened during their 2008 cleanup of a record spill of 7.3 million tons of coal ash sludge at the Kingston coal-fired power plant in nearby Roane County. (
  • The issue of coal ash storage drew national attention following a spill in Tennessee in 2008. (
  • After a calamitous 2008 spill in Tennessee, the Environmental Protection Agency (EPA) developed regulations, which went into effect in October 2015, to reduce harm from coal-ash ponds across the country. (
  • Two shareholders of Charlotte, NC-based Duke Energy have filed suit against the company, accusing it of negligence surrounding the February 2nd spill of about 39,000 tons of coal ash into the Dan River, near Eden, NC, that created a polluted slick stretching some 70 miles. (
  • A coal ash spill. (
  • The TVA coal ash slurry spill in Harriman, Tenn. (
  • Will BP's oil spill be the big catalyst that will drive us towards finally diversifying away from dirty energy like oil and coal and towards cleaner sources like efficiency, solar and wind? (
  • A coal ash spill in North Carolina's Dan River. (
  • Coal ash was brought prominently to national attention in 2008 when an impoundment holding disposed ash waste generated by the Tennessee Valley Authority broke open, creating a massive spill in Kingston, Tenn. (
  • Duke Energy coal ash spill, regulators' fumbling response create fear, confusion in N.C. (
  • Coal ash was brought prominently to national attention in 2008 when an impoundment holding disposed coal ash waste generated by the Tennessee Valley Authority failed, creating a massive spill in Kingston, Tennessee, that released more than 5 million cubic yards of coal ash to the surrounding area and is regarded as one of the worst environmental disasters of its kind in history. (
  • Following the TVA coal ash spill of 2008, EPA requested information from companies believed to have facilities with coal ash impoundments. (
  • Photo: Senate Enviroment and Public Works Committee When the catastrophic coal ash spill occurred at the Tennessee Valley Authority's Kingston plant in 2008, a quiet debate over how to regulate coal ash had already been going on for decades, largely outside the view of the public or press. (
  • That all changed with the Kingston spill, which aside from releasing a billion gallons of toxic waste into a nearby community and river system also pushed the problem of coal ash into the national spotlight and led to calls for change. (
  • In the wake of the West Virginia coal chemical spill earlier this year, it's more clear than ever that we must close all the water pollution loopholes that the coal industry has enjoyed for far too long. (
  • The vast majority of states do not require adequate monitoring or liners to stop the release of toxic chemicals nor do they ensure that massive earthen dams are maintained safely to prevent another disaster like the 2008 coal ash spill. (
  • Unfortunately, since the 2008 Tennessee spill, the coal industry has lobbied hard to block the EPA from establishing strong protections. (
  • For instance, in many people's mind rather than quelling health concerns over the TVA ash spill disaster the report perpetuates long-standing concerns about the TVA's credibility and their role in the clean-up efforts as well as the appearance of a questionable relationship between the TVA and TDH. (
  • If the walls of these ponds fail, they can spill coal ash into nearby surface waters - as happened in the wake of Hurricane Florence in 2018, in Virginia's Dan River in 2014, and in Tennessee in 2008. (
  • It was April 28, 2014, five years after Craig Wilkinson's 12-month stint as a backhoe operator at a massive coal-ash spill in Tennessee. (
  • The TVA spill marked a turning point in the debate over the dangers of coal ash, an often-toxic byproduct of coal-fired electricity. (
  • In 2008, a large coal ash spill at the Tennessee Valley Authority (TVA) power plant in Kingston, Tenn. (
  • This catastrophic spill prompted EPA to reassess coal ash surface impoundments and gather information from facilities managing coal ash nationwide. (
  • [vi] And in February 2014, a spill of 39,000 tons of coal ash slurry from a Duke Energy impoundment fanned into North Carolina's Dan River. (
  • Just before the second anniversary of the Dan River coal ash spill, the NC Department of Environmental Quality (DEQ) held public hearings on basin closures across the state. (
  • The TVA spill created national headlines and drew the attention of the public and elected officials to utilities' current management practices related to coal ash. (
  • Responding to the recent TVA coal ash spill, the EPA on March 9 laid out new efforts to prevent future threats to human health and the environment. (
  • The Tennessee Valley Authority (TVA) is stating that most of the coal ash “deemed critical†following last year’s historic spill, has been cleaned up, said WDEF. (
  • The catastrophic fly ash spill took place last December and released an unimaginable 5.4 million cubic yards of toxic coal sludge, dumping toxins into Tennessee’s Emory and Clinch rivers and the 300 acres surrounding the TVA’s Kingston plant. (
  • Mike Scott, the recovery project’s operations manager said, speaking to Chattanooga's Engineers club, "We had some heavy rains earlier after the spill had occurred which put some of the ash and washed it further down river which is one of the reasons why we're trying so hard to get it out before the Spring come next year," quoted WDEF. (
  • The massive TVA spill involved over one billion gallons of toxic coal sludge and ravaged the environment, the economy, and the lives and health of the families, wildlife, and aquatic life living in the area. (
  • A few weeks after the massive sludge spill in Tennessee, many people are examining the lack of coal ash regulation in the United States. (
  • While the frightful weather took a lot of attention this week in Charlotte, up north the fallout continued from a coal ash spill into the Dan River. (
  • An agency representative has to appear before the grand jury next month, with documents related to the Dan River ash pond and the spill. (
  • A revised estimate shows less coal ash than previously thought leaked into the Dan River during a spill last week. (
  • Coal ash spill in Kingston, Tenn. (
  • The catastrophic Tennessee Valley Authority coal ash spill in December 2008, they contend, demonstrated that current regulations are not enough to mitigate environmental and financial risk for utilities and their shareholders ÷ Beyond the TVA spill, the disastrous oil well blowout in the Gulf of Mexico demonstrates that unforeseen accidents can create unpredictably large environmental and financial risk for energy companies. (
  • We believe it is critical that utilities be required to assure shareholders and the public that they are financially prepared to manage the costs associated with a catastrophic coal ash spill or other ash-related events that could require significant clean up costs. (
  • No adverse health effects were found among those Roane County residents who elected to participate in medical evaluations following the December 2008 fly ash spill at TVA's Kingston Fossil Plant. (
  • The evaluation was available to any Roane County resident who had health concerns about the fly ash spill. (
  • A repeat evaluation of the people who participated in the program could determine whether there has been any change in their health that may be related to the fly ash spill. (
  • The December 2008 spill at TVA's Kingston Fossil Plant released approximately 5.4 million cubic yards of fly ash. (
  • Monday night 2.6 million cubic yards (the equivalent of 525.2 million gallons, 48 times more than the Exxon Valdez spill by volume) of coal ash sludge broke through a dike of a 40-acre holding pond at TVA's Kingston coal-fired power plant covering 400 acres up to six feet deep, damaging 12 homes and wrecking a train. (
  • However, the December 2008 coal ash spill from an east Tennessee fossil fuel plant turned the spotlight on the safety of coal ash. (
  • After the 2008 spill, which covered 300 acres of a nearby community in 1.1 billion gallons of coal ash sludge, the federal government ordered the EPA to establish guidelines for regulating the storage of coal ash. (
  • Settlement will compensate victims of massive coal ash spill resulting from failure of TVA containment. (
  • Judge rules TVA liable for Coal Ash Spill that. (
  • Plaintiffs in three class action federal lawsuits over the giant Kingston coal ash spill have joined. (
  • FILE - In this Thursday, Jan. 14, 2016, photo, a drainage pipe that was the original culprit of the coal ash spill is shown at the Dan River Steam Station in Eden, N.C. Duke Energy Corp. is digging up and hauling away from riverbanks the toxic coal residues two years after one of the worst coal-ash spills in U.S. history. (
  • EPA supports the environmentally sound recycling of coal ash and has developed regulations on the safe disposal of coal ash in landfills and surface impoundments. (
  • Despite containing chemicals linked to cancer, birth defects, stomach ailments, fish kills, and livestock deaths, coal ash has been dumped in unlined lagoons, pits and landfills, some of which inevitably leak. (
  • Duke Energy cleared a major hurdle in its plan to bury toxic coal ash in permanent landfills with the issuance of state permits to operate the coal ash facilities in Lee and Chatham counties. (
  • Power plants dump more than 10 million pounds of chromium and chromium compounds into mostly unlined or inadequately lined coal ash landfills, ponds and fill sites each year. (
  • Recent data disclosures under the federal Coal Ash Rule have confirmed dangerous contamination at 92% of coal ash ponds and 75% of coal ash landfills nationwide. (
  • The vast majority of ponds and landfills holding coal waste at 250 power plants across the country have leaked toxic chemicals into nearby groundwater, according to an analysis of public monitoring data released Monday by environmental groups. (
  • In hundreds of places around the country, coal ash is stored in lagoons near power plants or in unlined landfills and abandoned quarries. (
  • So it is necessary to avoid situations in which employees working in coal-fired power plants or public members living close to coal ash landfills will be exposed to high coal ash dust concentrations. (
  • Newton says Duke thinks capping ponds where they sit could be appropriate for at least some of the 10 plants for which Duke has not yet made specific plans.That approach is unacceptable to environmental groups that want all ash dried, excavated and moved to lined landfills away from rivers and lakes. (
  • He reminded the commission of testimony earlier in the hearing from Dexter Matthews , head of the Solid Waste Division of DENR, that Duke does not have sufficient landfill capacity to remove and rebury all ash in its current ponds in lined landfills. (
  • Duke would have to acquire the land, get permits for landfills and build them before the ash could be removed. (
  • For decades, coal ash has been stored in landfills or in ponds, often near waterways into which toxins can leach. (
  • Duke Energy will remove coal ash from the Allen, Belews Creek, Cliffside, Marshall, Mayo and Roxboro sites into on-site lined landfills. (
  • Meeting the environmentalists' demands to truck the dry coal ash to landfills lined with impermeable plastic would cost an additional $3 billion - a massive sum that the company says buys little in the way of improved environmental quality. (
  • A deal cooked up between Governor Ralph Northam and legislative leaders, with the support of environmental groups and the acquiescence of Dominion Energy, will require Dominion to excavate coal ash ponds at four of its power plants, recycle at least 6.8 million cubic yards, and move the rest to modern landfills. (
  • By Dominion Energy's most recent estimate, it will cost between $2.77 billion and $3.36 billion to recycle the utility's 30 million tons of coal ash or bury it in synthetically lined landfills - as much as $2 billion more than burying it in place. (
  • John Swenson, founder and managing partner of Henrico-based EnCAP-IT Solutions of VA, has developed 12 patents around a coal-ash disposal process he calls macroencapsulation, which combines the cost-efficiency of cap in place with the risk reduction of removal to landfills. (
  • More than 50 percent of fly ash ends up in landfills, where it can easily leach into the nearby environment. (
  • Overwhelmingly, the body of research on coal ash has examined its risks to the environment and the health of communities abutting the nation's 1,400 ash ponds and landfills - not workers. (
  • In Puerto Rico's south, protests are building over the disposal of toxic coal ash in landfills. (
  • Many former coal plants have been closed or reconfigured to burn gas or oil, which produces much less waste, although their CCB legacy remains in landfills and mine reclamation sites. (
  • Morgantown CCB is sent to several landfills in Charles County, Md., most at the Faulkner fly ash facility, which holds an estimated 7 million cubic yards. (
  • After coal is burned at power plants, leaving massive heaps of ash, not all of the waste ends up in landfills and impoundments like the one that failed catastrophically in east Tennessee in December 2008. (
  • It is encouraging to see the commitment being made to develop reuse applications for the coal ash as opposed to the continued use of county landfills,' stated a 1989 letter from North Carolina's solid waste chief to ReUse Technology, now known as Full Circle Solutions. (
  • Tennessee regulates ash ponds the same way it monitors solid-waste landfills, despite the fact that ash ponds display liquid characteristics when spilled. (
  • We don't know how much of these contaminants are released to the environment, and how they might affect human health in areas where coal ash ponds and landfills are leaking. (
  • While the majority of fly ash is captured by traps in the power plant and disposed to coal ash impoundments and landfills, some escapes and is emitted into the environment. (
  • The first would regulate coal ash as a "special waste" and would require the phasing out of wet storage at impoundment plants and moving that waste to landfills. (
  • Hopefully, Georgia will take the other path and require the real cleanup of all coal ash dumps, including those that were abandoned years ago. (
  • The U.S. has 1,400 ash dumps. (
  • Under a 2015 U.S. Environmental Protection Agency (EPA) coal ash rule, all U.S. electric generating utilities were required to analyze groundwater pollution at each of their operating coal ash dumps by January 31, 2018, and publish the results online by March 2. (
  • TDEC and TVA together crafted an order in 2015 that allows TVA to investigate its coal ash dumps, reveal any contamination or structural weaknesses and draft a plan to fix problems, TDEC senior advisor Chuck Head told attendees at Monday's meeting. (
  • Duke Energy pleaded guilty in 2015 to federal environmental crimes after an investigation found the company allowed coal ash dumps at five power plants to leak toxic waste into water supplies. (
  • The U.S. Environmental Protection Agency says unless coal ash dumps are properly managed, those contaminants can pollute water above and below the surface, as well as the air. (
  • Monday's report calls for tightening regulations to include not only ash dumps that are actively receiving material from power plants, but also ones that are inactive. (
  • The Coal Ash Rule only requires on-site testing of groundwater, but contamination from coal ash dumps can flow miles offsite and threaten the safety of residential drinking water wells. (
  • There is scant information available on those working at regulated coal ash dumps, she says, let alone unregulated sites where the ash gets recycled. (
  • By the EPA's accounting, 49 coal ash dumps in 18 states have the potential to damage human health by contaminating ground or surface water, a figure that almost certainly understates the problem. (
  • Following the Kingston episode, newly appointed EPA Administrator Lisa Jackson promised to reexamine the agency's long-standing reluctance to regulate coal ash and to consider a new rule that would compel safer disposal of coal ash and the reinforcement of old, poorly designed, and carelessly maintained coal-ash dumps. (
  • The non-profit health advocacy group Physicians for Social Responsibility say ash dumps pose "an acute risk of cancer and neurological effects as well as many other negative health impacts: heart damage, lung disease, kidney disease, reproductive problems, gastrointestinal illness, birth defects, and impaired bone growth in children. (
  • Earlier this year we wrote about how information pointing to “significantly higher cancer risks†for those living near coal-fired power plant ash dumps was allegedly covered up by the recent Bush Administration, citing a report by (
  • Those breathing the air near coal ash dumps may face risks from radioactivity, according to Nancy Lauer, the lead author of the study. (
  • Until recently, North Carolina's Department of Environment and Natural Resources (DENR) has allowed Duke Energy's coal ash dumps to contaminate ground and surface waters and even intervened to stop environmental groups' legal actions to make Duke clean up its ash. (
  • These toxins are contaminating the land and water around hundreds of coal ash dumps across the country. (
  • For the past three years, Waterkeeper Alliance has investigated dozens of coal ash dumps all over the United States. (
  • Four environmental groups today announced an historic agreement to reduce toxic pollutants leaking from a power plant's coal ash dumps into groundwater and the Susquehanna River, the largest Chesapeake Bay tributary. (
  • In 2012, 470 coal-fired electric utilities generated about 110 million tons of coal ash. (
  • Nearly a decade ago, this trio of women watched as their healthy husbands rushed from their Knoxville homes to rescue the residents of Roane County from the 7.65 million tons of coal ash bearing down on them. (
  • Poisoned Kingston disaster workers still searching for justice a decade later Nearly a decade ago, this trio of women watched as their healthy husbands rushed from their Knoxville homes to rescue the residents of Roane County from the 7.65 million tons of coal ash bearing down on them. (
  • According to the EPA, in 2012, coal-fired electric utilities burned more than 800 million tons of coal in the United States, generating about 110 million tons of coal ash. (
  • The U.S. produces about 130 million tons of coal ash a year, one of its largest kind of waste, according to the EPA. (
  • It is converting or replacing many of its old pits so they burn natural gas, part of an industry-wide shift that will greatly reduce the estimated 130 million tons of coal ash that utilities create annually. (
  • It ends up with at least 125 million tons of coal waste, including ash and the sludge left from scrubbers that remove air pollutants. (
  • In the United States approximately 110 million tons of coal ash were generated in 2012. (
  • Brickhaven is expected to receive up to 12 million tons of coal ash, which has been transported from Duke Energy's coal-powered plants west of Charlotte and Wilmington. (
  • He noted the 2,090-megawatt Marshall Steam Station in Catawba County has 22 million tons of coal ash in its ash ponds. (
  • TVA already wants to leave in place at least 5 million tons of coal ash in an unlined pit at Bull Run and create a new "dry" coal ash dump while gearing up to shut down the plant by 2023. (
  • The production of fly ash from coal-burning power plants in Denmark was in the year of 1980 about 1 million tons and with an increasing trend, and the annual production of fly ash from power plants in the U.S.A. is of the order of magnitude of 35-40 million tons. (
  • Every year, the nation's coal plants produce 140 million tons of coal ash pollution -- and those tons of toxic material are stored in unlined ponds and uncovered piles nationwide. (
  • Coal-fired power plants generate some 129 million tons of coal ash annually, a startlingly large figure when compared to the 250 million tons of every category of household garbage that Americans generated in 2010. (
  • The latest report from the American Coal Ash Association, the industry group representing major coal ash producers, found that of the more than 136 million tons of coal ash produced in 2008, about 44 percent -- 60 million tons -- was reused. (
  • As a byproduct of burning coal to make electricity, the U.S. produces nearly 80 million tons of coal ash a year . (
  • SELC research uncovered nearly 4 million tons of ash at the site, and even more problems. (
  • On the northern edge of the Plant Scherer site, Georgia Power has filled a massive pit with 15.7 million tons of coal ash - enough to fill 4,700 Olympic-sized swimming pools - some of which is in contact with the water table, according to the company's filing. (
  • This fall will mark four years since Steve Johnson accepted 16,000 tons of toxic coal ash from Jacksonville Electric Authority in hopes the substance would serve as a proper cover for the dirt roads on his property uphill from Black Creek. (
  • It's been one of the region's biggest environmental stories since a collapsed pipe poured thousands of tons of coal ash into the Dan River from a pond at a Duke plant in Eden, N.C. in 2014. (
  • The U.S. burns more than 1 billion tons of coal a year to generate about half of the nation's electricity. (
  • The state began regulating coal ash more aggressively after a pipe burst under a stormwater pond in 2014 and spewed 39,000 tons of coal ash into the Dan River in Eden. (
  • TVA's Kingston Fossil Plant , built in 1955, was the largest coal-burning power plant in the world for more than a decade, and it still burns 14,000 tons of pulverized coal, or 140 rail-car loads, each day. (
  • TVA will have generated at least another 637,000 tons of coal ash at its Bull Run coal-fired power plant before it has to release a report on impact. (
  • By the time TVA files its investigative report, the nation's largest electricity provider will have generated at least another 637,000 tons of coal ash waste at its Bull Run coal-fired power plant in Anderson County, according to data from the Tennessee Department of Environment and Conservation. (
  • According to the Waterkeeper Alliance, "Duke Energy reported that it spilled an estimated 50,000 to 82,000 tons of coal ash into the Dan River near Eden, NC. (
  • Wang said that the US has accumulated 1.5 billion tons of coal ash, which is rich in rare earth elements and could be used to produce REEs for decades. (
  • The disaster heated up a long-simmering controversy over major loopholes in the way the nation regulates the handling and disposal of millions of tons of ash generated by coal-fired power plants. (
  • Today he is leading our efforts to clean up hundreds of millions of tons of toxic coal ash across our region, but back then, even he had no idea how extensive the problem was. (
  • That commitment came on the banks of the Saluda river, but in South Carolina, there was one more site to go, a coal ash lagoon on the banks of Lake Robinson that reportedly contained 660,000 tons of ash. (
  • The ash basin spilled at least 30,000 tons of coal ash into the Dan River, after a stormwater pipe broke on February 2nd. (
  • When that stormwater pipe burst ten days ago under a Duke Energy ash pond, the company estimated up to 82,000 tons of ash had spilled into the river, or about 8 percent of the entire pond. (
  • One week after 140,000 tons of coal ash and contaminated wastewater fouled the Dan River, NC DENR began to budge on their long-term approach to Duke's coal ash by putting on hold the "sweetheart deal" settlement they'd previously proposed with Duke. (
  • According to the Sierra Club , the threats to communities adjacent to coal ash impoundments include "increased risk of cancer, learning disabilities, neurological disorders, birth defects, reproductive failure, asthma, and other illnesses. (
  • Often power companies dump coal ash as slurry in open pits called coal ash impoundments. (
  • However, despite the danger to drinking water sources and freshwater aquatic life that comes from disposing of wet coal ash in impoundments, not to mention the threat contamination poses to the bottom line of power companies since the Kingston disaster, they continue to do it. (
  • How does coal ash get from these impoundments to bodies of fresh water and the water supply? (
  • Water from coal ash impoundments leaks into the ground directly, bringing the toxic chemicals with it. (
  • The installation of groundwater monitoring equipment at impoundments, and the use of a device called a composite liner, safeguards which Physicians for Social Responsibility refers to as "rudimentary" , help prevent leakage from coal ash sites that use them. (
  • Fly ash sludge/slurry from the Tennessee Valley Authority made its way into Tennessee's Emory River in December 2008, bringing attention to the integrity of coal ash impoundments. (
  • The U.S. Environmental Protection Agency on Feb. 4 released action plans developed by 22 electric utility facilities with coal ash impoundments, describing the measures the facilities are taking to make their impoundments safer. (
  • Shortly afterwards, EPA began overseeing the cleanup, as well as investigating the structural integrity of impoundments where ash waste is stored. (
  • Since May 2009, EPA has been conducting on-site assessments of coal ash impoundments and ponds at electric utilities. (
  • EPA also is releasing assessment reports on the structural integrity of an additional 40 coal ash impoundments at 16 facilities across the country. (
  • EPA has used the information provided by the companies to inform its ongoing efforts to assess the structural integrity of coal ash impoundments. (
  • In addition to conducting assessments to evaluate and address potential structural integrity issues of CCR impoundments, EPA is also in the process of developing the first national rules to ensure the long-term safe disposal and management of coal ash from coal-fired power plants. (
  • The EPA launched an inventory of coal ash impoundments like the one that failed at Kingston, sending information requests to more than 160 electric generation facilities and 60 corporate offices. (
  • [ii] While the Environmental Protection Agency (EPA) has estimated that somewhere around 40 percent of the ash is recycled safely by, for example, placing it in the beds of new highway segments and covering it with road surface materials, too much is still dumped into one of more than 500 such surface impoundments around the nation, many of them unstable, unlined, and uncovered. (
  • By the end of this year, U.S. power plants with coal ash surface impoundments could face new federal regulations related to the management of coal ash at their facilities. (
  • Most states don't require utilities with coal ash impoundments to have liners or monitors to check on whether any hazardous constituents from the coal ash are leaching into aquifers. (
  • Likewise, most states have no standards in place that mandate regular testing of the integrity of the dikes used to contain coal ash slurry in surface impoundments. (
  • Closure and remediation solutions for coal ash ponds, or impoundments, vary greatly. (
  • Facing South examined records from the state Division of Waste Management, which oversees the use of dry coal ash as fill, and the Division of Water Quality, which is responsible for fills that use wet coal ash from impoundments like the one that failed at the Tennessee Valley Authority's Kingston plant. (
  • An aerial photo taken by Riverkeeper Rick Cove on March 10, 2014 show personnel pumping coal ash wastewater from impoundments at Duke Energy's Cape Fear plant. (
  • Duke found eight more stormwater pipes buried beneath their ash impoundments at several NC facilities after initially claiming that the Dan River pipes were the only ones that existed. (
  • A large crack was then found in the Cape Fear plant's impoundments, threatening another coal ash disaster. (
  • A home is shown Dec. 22, 2008, near the TVA Kingston Fossil Plant in Roane County after the failure of a dike that unleashed more than 1.1 billion gallons of toxic coal ash slurry. (
  • The coal ash slurry flooded homes, farmland and poured into the Emory River, prompting what would become a billion-dollar cleanup. (
  • A slurry, or sludge pond is used to dump toxic wastes after coal is cleaned. (
  • It's worth remembering that at the end of 2008, more than 1 billion gallons of toxic coal ash slurry was spilled by the Tennessee Valley Authority. (
  • In the early hours of Dec. 22, 2008, an earthen containment wall burst at the TVA Kingston Fossil Fuel Plant , unleashing a massive wave of toxic coal ash slurry, more than a billion gallons in all, into nearby rivers and covering hundreds of acres of land with sludge up to 6 feet deep in places. (
  • Flotation of fly ash to recover coal contained therein is carried out in at least two steps, pH of the flotation slurry in the first step being 6-8, and in the last step lower than in the first step and below 6.5, preferably in the range of 3-5. (
  • 6. A process as claimed in claim 1, wherein there is aerated in each flotation vessel with an amount of air per minute of at least the same volume as the volume of the slurry of fly ash in that vessel. (
  • 11. A process as claimed in claim 1, wherein a small amount of dispersant is present in the slurry of fly ash to be flotated. (
  • The resulting biocement wouldn't make the coal ash completely solid, but it would be a lot more viscous than the existing coal ash slurry. (
  • In laboratory experiments, the researchers found that the process works with coal ash - the bacteria create biocement using coal ash, and the coal ash slurry becomes stiffer. (
  • On December 22, 2008, the contents of an enormous, 100-acre impoundment containing coal-ash slurry from the Tennessee Valley Authority's (TVA) Kingston Fossil Fuel Plant poured into the Emory River. (
  • Coal ash ponds at TVA's Kingston coal plant ruptured in December 2008 and caused 1.1 billion gallons of coal fly ash slurry to be released into nearby properties and the Clinch River. (
  • The plant, in Beaver County, originally sent its coal ash and scrubber waste to Little Blue Run, a 1,700-acre slurry pond that straddles the Pennsylvania-West Virginia border. (
  • EPA's historic failure to regulate coal ash has resulted in catastrophes that have buried homes in poisonous slurry and permanently harmed rivers and stream. (
  • The most visible disaster occurred when a waste pond failed at a Tennessee coal plant in 2008 , destroying three homes and flooding 300 acres and two rivers with a wall of wet coal ash. (
  • If you want to know what it's like living near a coal ash pond, this is it,'' said Malpass, 67, a retired carpenter and Vietnam veteran. (
  • On Christmas Eve, 2008 a coal ash pond dam broke and sent a wave of toxic coal ash flowing into the town of Kingston, Tennessee. (
  • Community members from Waukegan, Peoria and Vermilion teamed together this week to promote changing the Illinois Environmental Protection Agency's rules regarding coal-ash pond removal. (
  • A hawk sits on top of a pile of coal fly ash that spilled from a retention pond at the TVA Kingston steam plant Dec. 17, 2009. (
  • The coal ash released from the pond at TVA's Kingston Plant flowed over half a square mile and contaminated the Emory River. (
  • December 22, 2008, more than a billion gallons of coal ash, a by-product of coal-burning energy production, mixed with water, burst through the banks of a containment pond in Kingston, Tennessee. (
  • They are tying it to the pollution of the coal ash pond. (
  • When a dike on a coal ash pond ruptured at the Kingston Fossil Plant in Kingston, Tennessee, in December 2008, it spilled far more toxic ash than the Deepwater Horizon spilled oil. (
  • The wave of wet ash smothered some 300 acres around the plant and dozens of houses in the small community of Swan Pond, before turning several miles of the Emory, Clinch, and Tennessee Rivers, as well as parts of the Watts Bar Reservoir into a lumpy gray chowder. (
  • That includes up to $1.5 billion to close the existing wet ash ponds at 10 of the retired and active coal plants by removing most the water, leaving the ash in place and covering the ponds with an impermeable top liner to discourage new water from getting into the pond. (
  • There would be about $500 million in costs to remove and rebury the ash at the retired Riverbend and Dan River steam stations in a lined landfill and to accelerate closing the pond at the retired Sutton plant. (
  • For example, In 2008, a pond at the Kingston Fossil in Tennessee spilled over 1 billion gallons of coal ash into waterways, causing levels of toxic chemicals in nearby communities to spike. (
  • Instead, they drink and cook with bottled water delivered by Duke Energy, whose Buck Steam Station power plant and adjacent coal ash pond lie less than 1,500 feet away from their property. (
  • Also, within the next year or so, Dominion will file permit applications for its legacy coal ash ponds at Chesterfield Power Station, while Appalachian Power Co. plans to close and cap an ash pond at its Clinch River Power Station. (
  • If the utility is required to dig up the ash from every pond statewide and truck it to a lined landfill statewide - the most expensive option - the tab would approach $10 billion and the costs would have to be passed to consumers, company officials warn. (
  • This will certainly make it easier to contain, and less likely to contribute to pond failures that discharge coal ash into surface waters," Montoya says. (
  • In December 2008, an earthen dam collapsed at a pond brimming with ash generated by the utility's Kingston Fossil Fuel Plant , 36 miles southwest of Knoxville. (
  • TVA already plans to dry out the ash pond at its Cumberland City coal plant in Stewart County. (
  • The move by Dominion Energy to consolidate and then drain the water from a large pond containing coal ash at the Possum Point generating facility along the tidal Potomac River generated much controversy, and Dominion will now be required to move the coal ash off-site. (
  • When faced with a variety of options for coal ash pond closure, use a holistic approach rather than choosing what seems to be the quickest or cheapest on paper. (
  • This schematic cross-section shows the three stages of in-place consolidation and closure for ash pond solids. (
  • Water removal from an ash pond is critical to constructability, project economics, and long-term performance. (
  • Ash pond dewatering can take weeks or months. (
  • For example, if plans include building a structure that is sensitive to foundation settlement, the closure approach for the pond should include either removal of some or all ash materials or its compaction to the standard of an earthen structural fill. (
  • Officials say the utility may have violated regulations when it built a pond in and above a coal-ash landfill on its Oak Creek site. (
  • and environmental groups now say they have found another, unrelated leak from the storage pond that holds the coal ash. (
  • Basically, Duke's diverted a pipe that would usually flow into the damaged ash pond to instead flow elsewhere. (
  • And it asks for e-mails between Duke and the state about seepages, places where water leaks out of the earthen ash pond and into the river. (
  • Since April 1970, TVA has been sluicing coal ash waste to a 476-acre coal ash pond complex, which is also unlined. (
  • He said the ash pond cannot effectively contain coal ash waste since it was constructed on top of highly porous limestone with numerous existing sinkholes and an associated underground karst flow system. (
  • The residents' lawsuit claims the monitoring wells are "horizontally adjacent" to the coal ash pond. (
  • But groundwater first moves down from the coal ash pond to the area's underground aquifer, the lawsuit said. (
  • The consent decree requires Talen Energy, owner of the Brunner Island Generating Station in York Haven, to close and excavate one ash pond, monitor and address leakage of pollutants from other waste sites, pay a $1 million civil penalty, and contribute an additional $100,000 to fund supplemental projects to reduce local water pollution, according to the agreement. (
  • However, the power company continues to dispose of ash in its lined landfill (which has also been leaking) and in an unlined ash pond called Ash Basin 6. (
  • Coal ash pollution of groundwater, drinking water, and surface water (rivers, streams, lakes) with toxic waste chemicals is a worldwide problem that is front and center in the United States and Missouri right now. (
  • The Washington Post recently wrote about the national coal ash pollution issue. (
  • On behalf of three conservation groups, Earthjustice has filed a federal lawsuit to stop toxic water pollution that is leaking into the Apalachicola River from an aging 40-acre coal ash dump at Gulf Power Company's Scholz Generating Plant near Sneads, Florida. (
  • Under our legal settlement, Gulf Power Corp. pledges to take steps to protect the Apalachicola River from coal ash pollution. (
  • Coal ash dust health effects can be considered as a particular case of exposure to particulate matter (particle pollution). (
  • But once the pollution is discovered, the EPA's coal ash rule requires protection and cleanup. (
  • The EPA is in the process of repealing the Clean Power Plan (CPP), the nation's first-ever rule to limit carbon pollution from coal plants. (
  • Public Justice's Coal Ash Litigation Project, part of our Environmental Enforcement Project , protects communities and wildlife from toxic pollution, and forces coal companies to confront and pay the full cost of the damage they do. (
  • Indeed, the National Academy of Sciences pointed to significant risks of pollution from the toxics and other contaminants in coal ash. (
  • When former Public Justice Staff Attorney Richard Webster first visited Craft's Run , a stream that drains from the Coresco Coal Ash Dump near Morgantown, W. Va., a nearby resident asked if he was there to do something about the pollution. (
  • The new EIP report resulted from a Freedom of Information Act ( FOIA ) request to the EPA , which revealed that 49 different coal-fired power plants acknowledged that their own testing showed that groundwater pollution around their disposal sites far exceeded the federally acceptable levels. (
  • And if politicians like David McKinley have their way, these sites will soon be out of the regulatory reach of the EPA , opening the door for a lot more coal ash pollution problems. (
  • Late Wednesday we saw a victory for clean water and public health: The Sierra Club is pleased to be a part of a legal agreement with 11 organizations compelling the Environmental Protection Agency (EPA) to finalize safeguards against coal ash pollution by the end of this year . (
  • But the pollution doesn't stop with the water - coal ash also dirties the air. (
  • While the EPA has thoroughly documented the dangers of coal ash and the public has been outspoken asking for protections -- Americans have sent more than 450,000 comments asking, and turned out by the hundreds to five public hearings -- the EPA has failed to set federal limits on the pollution. (
  • In addition to concerns about pollution limits, the revised permit does not require restrictions on the discharge of coal-ash wastewater during low flow conditions when the impacts to the James River will be the greatest, and does not provide for sufficient monitoring terms to ensure that the James River and human health are protected," said Bill Street, CEO for the JRA. (
  • Coal ash, according to the EPA, is the source of about half of the toxic pollution of our rivers," says Holleman, "and in the Southeast we have much more per capita than in other parts of the country. (
  • The use of coal ash in the country has skyrocketed recently because of the rising demand for electricity and especially because of the improved monitoring of air pollution. (
  • Like at Kingston, it was necessary to take TVA to court to force it to take responsibility for its coal ash pollution. (
  • SB9 would direct the Illinois EPA and Pollution Control Board to draw up rules for coal ash storage sites that match or exceed federal rules. (
  • Simultaneously, four environmental groups sought a court review of a 2012 state Environmental Management Commission ruling that Duke Energy didn't have to take any action to address coal ash groundwater pollution. (
  • This motion seeks to ensure that local citizens in the Dan River Basin have a voice in the cleanup of Duke Energy's pollution and calls for the complete removal of ash from the Dan River's banks. (
  • Additionally, DENR officially abandoned their proposed (sweetheart) settlement with Duke Energy on March 21 , and requested assistance from EPA to help force the utility to clean up its ash pollution. (
  • We've found toxic pollution leaking and spilling out of nearly every ash dump we've looked at. (
  • This enforcement action is one of historic proportions, since it's the largest penalty ever assessed at a coal ash pollution site in Pennsylvania history," said David Masur, Executive Director of PennEnvironment. (
  • Today's agreement will reduce the impact of toxic coal ash pollution on ground and surface waters, better control the plant's wastewater discharges, ensure discharge of heated water is protective of aquatic life, and improve water quality for the Lower Susquehanna River and its tributaries," said Lisa Hallowell, senior attorney for the Environmental Integrity Project. (
  • The foundation, however, said the lab results confirm the widespread groundwater contamination being caused by storing coal ash, a byproduct of generating electricity at the plants. (
  • It's about a byproduct called coal ash. (
  • Everything - nuclear waste, trash, the byproduct of coal-burning power plants - must go somewhere. (
  • Coal ash is a toxic byproduct that is left over after coal is burned . (
  • Coal ash is the potentially toxic byproduct of burning coal, critics say, and it is made up of aluminum oxide, iron oxide and silicon oxide. (
  • Demand testing for all the identified coal ash toxins every time utilities test - should be quarterly. (
  • The fix the company plans at six of its sites, called cap-in-place, involves covering ponds with plastic sheeting, but leaving the ash, meaning toxins continue to seep into groundwater. (
  • Judge: Proof of Kingston coal ash workers exposure to toxins 'legion,' enough for trial A federal judge says hundreds of blue-collar laborers have amassed enough evidence to allow a jury to decide if the coal ash is killing them. (
  • The ash contains innumerable concentrated toxins from selenium to lead to manganese. (
  • The investigation could lead to a lawsuit, but Patterson said the organization first needs to find out what is going on and document not only the placement of the coal ash ponds, but the movement of the toxins, including how far they travel. (
  • Coal ash is putting human health at risk both from potential large scale disasters like coal ash dam failures (like the notorious Tennessee Valley Authority disaster in Kingston, Tennessee in 2008) and from gradual, yet equally dangerous, contamination as coal ash toxins seep into drinking water sources. (
  • The new report has identified a total of 116 coal ash sites in America that are leaching deadly toxins into the environment. (
  • As filtering processes at plants became more effective over the years in removing the toxins from smokestacks, the coal ash left behind became more lethal. (
  • Workers operating heavy equipment at the Kingston Fossil Plant load gondola cars for a train bearing coal ash sludge for disposal in Alabama on Sept. 23, 2009. (
  • Gulf Power, a subsidiary of the $38-billion Southern Company, has flushed millions of gallons of toxic coal ash sludge into 40 acres of unlined pits that sit atop a bluff along the Apalachicola River. (
  • The information was originally requested by the USEPA Office of Water to help the agency evaluate the potential toxicity of wastewater containing ash or scrubber sludge that may be discharged to rivers or lakes. (
  • The TVA originally estimated that 360 million gallons of coal ash sludge had escaped from behind a broken retention wall at its power plant in Kingston, Tenn. (
  • And, until December 2008, when an earthen dam burst in Tennessee spewing more than one billion gallons of coal ash sludge into a river and across 300 acres of land, not many people thought about the waste generated by energy production either. (
  • Janie Clark and her husband, Ansol, talk with fellow coal ash cleanup workers at their home in Knoxville on Thursday, Nov. 8, 2018. (
  • Meanwhile, Duke is still seeking approval from a state regulator to pass coal ash cleanup costs on to customers in a territory that includes Charlotte. (
  • Besides coal ash cleanup, Duke wants customers to cover other costs including investments to modernize power plants, generate cleaner power and improve reliability. (
  • I want to see data, analysis of what was in that fly ash, a plan of action for immediate cleanup and the long-term cleanup to make sure our environment is restored. (
  • As coal companies continue to go bankrupt across the U.S., they should have a bond set aside to pay for the cleanup and closure of these sites, Dexter said. (
  • On December 22, ten years to the day after a dike ruptured at a Tennessee Valley Authority power plant near Kingston, Tennessee, pouring more than a billion gallons of toxic coal ash into the Emory River, TVA took out a full-page ad in the local paper to congratulate itself and its contractors on a cleanup job well done. (
  • The Department of Environmental Quality said in a Thursday press release that it will be the largest coal ash cleanup in the nation's history. (
  • in 2008, which contaminated thousands of acres and necessitated a $1.2 billion cleanup, power companies started to move away from wet coal ash disposal. (
  • But his body had betrayed him since he had signed on as a cleanup worker following a dike failure that unleashed a billion gallons of ash from a Tennessee Valley Authority power plant. (
  • Why did Adams County cleanup crew pump coal ash into Ohio River? (
  • That commitment was made after a similar ash mound collapsed in Kingston eight years ago, contaminating the nearby river and resulting in a billion-dollar cleanup. (
  • The stringent Subtitle C option would authorize the agency to require cleanup and reinforcement of existing coal ash pits and to require liners and covers for new disposal facilities. (
  • We also partnered with community based partners in each location, including Broad Riverkeeper, French Broad Riverkeeper, Down East Coal Ash Coalition, Yadkin Riverkeeper, Central Piedmont Sierra Club, Catawba Riverkeeper, Temple Emanuel Environmental Movement, and Residents for Coal Ash Cleanup. (
  • The agency's plan includes measures to gather critical coal ash impoundment information from electrical utilities nationwide, conduct on-site assessments to determine structural integrity and vulnerabilities, order cleanup and repairs where needed, and develop new regulations for future safety. (
  • And although the problem is still widespread in our region, there is one unequivocal success story: South Carolina, where a massive cleanup of the toxic ash is now underway. (
  • and chairman of the Tennessee Valley Industrial Committee, urged TVA to appeal Crenshaw's decision because he said it could set a costly precedent for the cleanup of industrial and utility coal ash ponds across the country. (
  • Environmental groups are hailing passage of a bill (SB9) t o regulate the cleanup of coal ash pits at Illinois power plant sites. (
  • It already persuaded South Carolina's utilities commission in December to allow it to start recouping coal ash cleanup costs as part of a $56 million rate increase that includes a 10 percent potential profit margin. (
  • Yet EPA, which is currently in the process of deciding whether or not to regulate coal ash as a hazardous waste, has completely ignored the cancer risk from chromium in groundwater. (
  • The coal industry opposes regulating coal ash as a hazardous waste. (
  • But coal ash is not considered a hazardous waste and can be placed in any lined landfill, unless states bar it. (
  • Industry groups said they were pleased the EPA didn't classify coal ash as hazardous waste, but they said the new rules were still too tough. (
  • So, Dina, the key question here was this - whether coal ash qualifies as a hazardous waste. (
  • The battle over regulating coal ash goes back to 1976, when Congress passed the Resource Conservation and Recovery Act , the main federal law that governs disposal of hazardous and non-hazardous waste. (
  • In other words, the EPA was saying that it was finally ready to treat coal ash as hazardous waste. (
  • The administration was flooded with letters from electric utilities and visits from their lobbyists warning that regulating coal ash as hazardous waste would lead to economic hardship for them and their customers. (
  • After the lobbying onslaught, EPA backed away from regulating coal ash as hazardous waste in 2000. (
  • [viii] As originally proposed, the rule would have had the agency regulate coal ash as a hazardous waste under Subtitle C of the Resource Conservation and Recovery Act (RCRA), the federal environmental law that governs general waste disposal. (
  • The rule fails to designate coal ash as a hazardous waste, allowing its producers to continue dumping it in huge, unlined pits that leak. (
  • The agency's proposed regulation includes two options: One will categorize coal ash as "special" (or "hazardous") waste, require federal oversight and set a timetable for clean-up. (
  • Meanwhile, environmentalists say that just because the EPA has failed to classify coal ash as a hazardous waste in the past doesn't mean it's not. (
  • Duke said part of a lined landfill near its closed Sutton Power Plant east of Wilmington eroded Saturday, releasing enough coal ash to fill about two-thirds of an Olympic-sized pool. (
  • Gray water containing coal ask flows from a ruptured landfill at the L.V. Sutton Power Station in Wilmington, N.C., and flows toward Sutton Lake, near the Cape Fear River. (
  • Groundwater at one Maryland landfill that contains ash from three coal plants was contaminated with eight pollutants. (
  • Uniontown, Ala. - When the mound of wet coal ash began to rise in the landfill across the road from her pretty yellow house with the peonies and roses in the front yard, Ruby Holmes felt overpowered by a horrible smell. (
  • When the EPA announced last summer that the ash would be shipped to Alabama, it said the landfill was in an isolated location. (
  • Were he still around, we're confident he'd be appalled (loudly and acerbically, as was his wont) at two potential natural disasters in the St. Louis region - the ongoing subsurface fire at the Bridgeton Landfill and Ameren Missouri's proposed coal-ash landfill along the banks of the Missouri River. (
  • Ameren Missouri wants government approval for a coal-ash landfill there . (
  • One of those options is closure by removal, which would mean removing the ash to an approved dry storage landfill. (
  • Dominion, they say, needs to prevent coal ash from being polluted by excavating the coal ash and moving it to a safe landfill away from waterways. (
  • Electric utilities have the option of recycling the ash (typically using it as a component of cement), trucking the ash to a landfill, capping the ponds so rainwater cannot percolate through, or capping with additional measures. (
  • In Puerto Rico's southern town of Peñuelas, residents have been fighting to stop a private company named Applied Energy Systems, or AES , from dumping the coal ash in a landfill next to their community. (
  • In a 123-page decision, U.S. District Court Judge Waverly Crenshaw, Jr., ruled earlier this month that the coal ash ponds at the Gallatin plant had been leaking potentially toxic substances into the groundwater and the Cumberland River and that TVA should dig up the coal ash and remove it to a landfill away from the plant. (
  • Georgia Power has pledged to place ash from 19 of its 29 coal ash ponds into a landfill, a costly process intended to protect natural water against potential contamination. (
  • A Greene County coal ash landfill won't be receiving any more coal waste until December, at the earliest. (
  • As part of a settlement reached between FirstEnergy and two environmental groups in September, the company will be making repairs to its coal ash landfill near its now-shuttered Hatfield's Ferry Power Station. (
  • Charles McPhedran, an attorney for Earthjustice, which negotiated the settlement, said he hopes that since FirstEnergy plans to close or sell Bruce Mansfield by 2018, the landfill at Hatfield's Ferry may never get coal ash from the power plant. (
  • But Little Blue closed at the end of 2016, and the company proposed sending 2.5 million pounds of coal ash a year from the Bruce Mansfield plant to the landfill near Hatfield's Ferry, another power plant that FirstEnergy owns in Greene County. (
  • For years, the company has disposed of coal ash waste in seven unlined ponds and a lined landfill that cover a combined 367 acres on an island bordered on the east the Susquehanna River and on the west by tributaries called Black Gut Creek and by Conewago Creek. (
  • Duke Energy spokeswoman Erin Culbert said the water testing, required by federal law, involved special monitoring wells immediately next to coal ash storage sites and do not reflect groundwater quality off Duke property. (
  • Duke Energy has been open about how ash storage sites impact the groundwater immediately around them, she said. (
  • Duke Energy needed a place to dump their coal ash, and the DEQ saw to it that they got one. (
  • Duke Energy stores huge amounts of toxic coal ash in unlined pits (outlined in red) next to High Rock Lake, an impoundment of the Yadkin River. (
  • Duke Energy has been providing bottled water to about 400 homes for more than a year, although there has not been a proven link between leaking coal ash basins and contaminated wells. (
  • At the center of the public comment period, and a series of hearings across the state, was determining the priority for closure among the 14 Duke Energy owned coal ash sites. (
  • Thankfully, there are other routes to hold Duke Energy responsible for their coal ash dumpsites and several actions are brewing in the courts that will hopefully have far-reaching impacts to protect our communities and waterways from this toxic threat. (
  • The ruling leaves little doubt that Duke energy is obliged to remove it's unlined and leaking coal ash dumpsites and that NC DENR does, in fact, have the authority and duty to require such action. (
  • There is no doubt regulating coal ash is one of the major issues facing our nation today, but it's also a massive issue for Charlotte - and not only because Duke Energy, which is headquartered here, will be impacted. (
  • Duke Energy said it stored coal ash in line with past industry practices and regulations. (
  • The company is generating an average of about 150 pounds of coal ash a year for each household, Duke Energy spokeswoman Paige Sheehan said. (
  • Now, new information from a joint report indicates that this chemical leaks readily from leaking coal ash dump sites maintained for coal-fired power plants. (
  • At a family ranch south of San Antonio, a dozen pollutants have leaked from a nearby coal ash dump, data showed. (
  • The latest example comes to us from Fayette County in southwestern Pennsylvania, where a coal ash dump has been linked to serious health issues among inmates of the State Correctional Institute at Fayette and the nearby town of LaBelle. (
  • It was built on part of a former coal waste and ash dump, and the remaining portion of the dump is still active. (
  • Trucks take the ash off of barges on the river and drag it up to the dump at the top of the hill without covering the ash with tarps. (
  • The other groups involved in the case are EnvironmentaLEE and Chatham Citizens Against Coal Ash Dump. (
  • Less than an hour later, 200 more police officers mobilized in Peñuelas to stop residents from blockading the trucks as they arrived to dump the coal ash there. (
  • Mike Eslinger lives near a coal ash waste dump in Sullivan, Indiana. (
  • Curt Haven lives only 100 feet away from the Little Blue coal ash dump that spans parts of West Virginia and Ohio. (
  • The coal dump site has been abandoned for years and the coal ash cover will help reclaim it. (
  • Coal ash is one of the largest types of industrial waste generated in the United States. (
  • Waste ponds at a massive coal plant nearby had leaked over the decades, contaminating wells in residential neighborhoods and groundwater under cattle grazing lands, as lawsuits would eventually allege . (
  • Colstrip is just one of dozens of places that have been damaged by coal ash waste , and there could be many more. (
  • New standards would require better monitoring, and push coal plants across the country to stop storing waste in the unlined ponds that are most likely to leak. (
  • The environmentalists said the study should spur lawmakers to strengthen Georgia's coal ash regulations by requiring utilities to remove waste from leaking, unlined coal ash ponds. (
  • Coal-fired power plants enjoy using millions of gallons of water from the Missouri River and the Mississippi River while dumping toxic waste directly into the water table and discharging relatively untreated wastewater into our rivers. (
  • Toxic chemicals in coal waste? (
  • The report acknowledges that the groundwater data alone does not prove that drinking-water supplies near the coal waste facilities have been contaminated. (
  • Coal ash ranks among the nation's largest industrial waste streams. (
  • The Trump administration has sought to overhaul portions of the Obama-era requirements for handling the toxic waste produced by burning coal. (
  • The Obama administration negotiated for years with environmental groups, electric utilities and other affected industries about how to address coal waste, which can poison wildlife and poses health risks to people living near storage sites. (
  • The new report, following a previous study by the environmental groups and EPA's own tally, brings the number of contaminated coal waste sites to 137 in 34 states. (
  • Federal enforcement of coal-ash disposal rules would mean classifying the waste as hazardous. (
  • Most of the coal waste is material the TVA is being required to dredge from the river. (
  • In June, some local residents filed a federal complaint against Matt Canestrale Contracting, on claims of illegal disposal of coal ash and processing of coal mine waste over many years. (
  • Exposure to Toxic Coal Waste at State Correctional Institution Fayette. (
  • The reason, the EPA said today, was it didn't - that the current record and the current evidence showed that it didn't meet the hazardous classification and through other measures they could protect communities and public health from these ash waste sites. (
  • I think what people don't understand is that, like, a lot of energy wastes are exempt, not only coal ash, but drilling wastes are exempt, coal mining waste is exempt, because Congress said so. (
  • All this is coming to pass, even as it is well documented that Coal ash is the second-largest stream of industrial waste in the country, and has been unregulated at the federal level for decades. (
  • Committee members, including Commissioner Catherine Denenberg and Commission Chairman Tracy Wandell, asked TDEC to give residents a presentation Monday about what that agency knows about TVA and its coal ash waste amid what they say are growing questions and concern in the Anderson County community. (
  • FILE - Pigs feed on a waste dumped near the cooling towers of a coal power plant near the southern town of Bitola, 200 km (124 miles) from the capital Skopje, in Macedonia, Dec. 10, 2009. (
  • A collection of environmental groups is calling for new regulations on the disposal of waste from coal-fired power plants, saying more needs to be done to protect the public from the dangers of toxic metals seeping into ground water. (
  • New chromatography separation techniques could extract rare earth elements from waste coal ash and help introduce the US to a market worth $4bn. (
  • and bearing the increasing coal prices in mind it is not economically justifiable to waste the large amounts of coal in the fly ash. (
  • That confusion stems from Duke 's admitted environmental mismanagement of its coal-ash waste and the state's bureaucratic ineptitude in conducting water testing and changing its health standards in the middle of the process on what constitutes safe drinking water. (
  • Photo: Wikipedia commons But before that happened, Congress passed the Bevill Amendment in 1980, which effectively exempted the coal waste from RCRA. (
  • New standards would increase the cost of disposing of coal ash waste, an extra cost the EPA estimated at about $1 billion per year. (
  • When coal ash comes in contact with water, a soup of hazardous pollutants can leach out of the waste and poison our water. (
  • PULLMAN, Wash. - Washington State University researchers have created a sustainable alternative to traditional concrete using coal fly ash, a waste product of coal-based electricity generation. (
  • The advance tackles two major environmental problems at once by making use of coal production waste and by significantly reducing the environmental impact of concrete production. (
  • Fly ash, the material that remains after coal dust is burned, meanwhile has become a significant waste management issue in the United States. (
  • For months, the town's residents have been blockading the trucks carrying the coal ash into their community, saying the waste is poisonous to their health and the environment. (
  • Activists poured buckets of toxic coal ash from the island's only coal-fired power plant onto the steps of the Capitol building to draw attention to the growing struggle of Puerto Ricans across the island who want the plant closed and are blockading the trucks dumping the poisonous waste near their town. (
  • On Saturday, Jan. 9, demonstrators gathered to protest the plan to release coal-ash waste water. (
  • The Possum Point ponds store years of waste produced when the plant burned coal. (
  • Coal Ash Waste Disposal Standards: What's at Stake? (
  • Currently, there are no federal requirements governing coal ash management because in 2000 the U.S. Environmental Protection Agency (EPA) determined it to be a nonhazardous waste under the federal Resource Conservation and Recovery Act. (
  • The Story of Coal Ash Waste in Our Backyard. (
  • extracting rare earths from coal ash , an abundant waste product with relatively high concentrations of these key elements. (
  • But it would help the coal industry take a step toward a " circular economy ," in which anything one process generates as waste can be used as a raw material in another process. (
  • The waste has been both accidentally and “routinely†released as a result of coal-fired plant daily operations, the Tennessean noted. (
  • Contaminants and waste released from coal plants are now often caught as solid waste and stored in 46 states. (
  • A federal judge on Friday, Aug. 4, 2017 ordered the nation's largest public utility to dig up its coal ash at Tennessee Valley Authority's Gallatin Fossil Plant and move it to a lined waste site where it doesn't risk further polluting the Cumberland River. (
  • Coal ash, the toxic waste produced by coal-fired power plants, has long been known to contain dangerous heavy metals, making it an environmental nightmare. (
  • Rehn says he hopes most closures would result in the coal ash waste being moved elsewhere. (
  • For years, Waterkeeper Alliance has pressed the EPA to adopt strong standards for coal ash, which is America's largest unregulated waste stream. (
  • The consent decree requires Talen Energy to close Ash Basin 6 by June 1, 2019, and excavate all waste from the site by December 31, 2031. (
  • But because there are many sources of coal, and because each coal plant has different technologies in place to manage the waste, it's difficult to say definitively what any given pile of coal ash contains. (
  • That's why, with an eye on protecting the nation's fresh water supply, the EPA decided to regulate coal ash waste for the first time in its 40-year history and after only three decades of debating whether or not coal ash is hazardous. (
  • They also chide coal and waste management lobbyists for turning the conversation into one about money instead of one about what's best for the health of the average person and the environment. (
  • That methodology works for Lisenby, who says, "What's most remarkable about coal ash waste is it's yet another example of how corporate fat cat polluters have continued to avoid oversight. (
  • This makes coal ash one of the largest waste streams in the U.S. To put this in perspective, the tonnage of coal ash alone is equivalent to roughly half the total tonnage of municipal solid waste (MSW) generated in the U.S. annually. (
  • His responsibilities have included serving as national client service manager, engineering design team leader, national practice leader, and senior project manager for solid waste, coal ash containments, and international sediment remediation projects in the US and China. (
  • Environmental groups have long pushed for coal ash, a by-product of coal burning energy production that contains toxic contaminants, to be classified as a hazardous material. (
  • Plants responding to EPA 's survey may be measuring some, but not all, contaminants subject to health-based standards, and lack of uniform monitoring standards for coal ash disposal sites means that methods of detection and measurement vary from state to state. (
  • Because most coal ash ponds are simply unlined holes in the ground, contaminants in the coal ash can leach into groundwater, raising environmental and public-health concerns. (
  • The regulations address concerns that include possible leaking of contaminants into ground water, blowing of contaminants into the air as dust, the catastrophic failure of coal ash ponds and methods for closing them. (
  • Some of the reuses for coal ash, such as recycling it into concrete, are not very controversial even among environmental advocates, since they're believed to lock in toxic contaminants. (
  • A new study from Duke University says radioactive contaminants can be found in coal ash from all three major U.S. coal-producing basins. (
  • Groundwater infiltration of coal ash contaminants was one reason Little Blue closed last year. (
  • The U.S. Environmental Protection Agency regulates coal ash under the Resource Conservation and Recovery Act external icon (RCRA) and the Clean Water Act. (
  • Even the Environmental Protection Agency and the Tennessee Department of Environment and Conservation were duped by Jacobs' test tampering, which included ordering the workers to wash coal ash away from stationary air monitors to lower the readings, testimony showed. (
  • In the wake of that disaster, the the US Environmental Protection Agency is now proposing for the first time to regulate coal ash on a national scale . (
  • The U.S. Environmental Protection Agency found that the type of chromium that leaches from coal ash sites is nearly always of the hexavalent variety, which is the most toxic form of chromium. (
  • The Environmental Protection Agency ruled during the presidency of George W. Bush that coal ash isn't hazardous. (
  • Both the Environmental Protection Agency (EPA) and the National Academy of Sciences have years of research making it clear that coal ash is becoming an increasingly toxic threat to human health. (
  • Republican Representative David McKinley from West Virginia has proposed a bill that would prohibit the Environmental Protection Agency ( EPA ) from regulating toxic coal ash. (
  • Right now, the Environmental Protection Agency is mulling new rules for the use of coal ash, including whether it should strictly regulate ash used in fills or simply put forward guidelines and leave oversight up to the states. (
  • New York, NY - December 19, 2014 - The U.S. Environmental Protection Agency (EPA) today has issued its first-ever national rule governing the disposal of toxic coal ash from coal-fired power plants. (
  • The Environmental Protection Agency (EPA) announced today that it has developed a proposal that would establish national guidelines for the storage of toxic coal ash. (
  • Congress' reluctance to regulate was reinforced when the EPA went on to release two reports - one in 1988 and another in 1999 - finding that damages from coal ash did not warrant lifting the regulatory exemption. (
  • The EPA doesn't regulate the ash that goes to those beneficial uses, but it may start controlling which kinds of beneficial uses are allowed. (
  • As federal officials consider how to regulate reuse of coal ash, North Carolina's experience in overseeing structural fills provides a case study with valuable lessons for the entire country. (
  • Federally, the EPA doesn't regulate utility ponds, as it does not classify coal ash as a hazardous material, "although it can contain trace amounts of heavy metals," according to AP. (
  • The EPA has outlined two different proposals to regulate coal ash storage under the Resource Conservation and Recovery Act. (
  • A biologist has identified $2.3 billion of fish and wildlife losses due to releases of pollutants at 22 coal ash disposal sites. (
  • Court documents showed pollutants from the ash leech into the groundwater and then enter the Cumberland River. (
  • The contamination came from a coal plant, but not from the usual air pollutants. (
  • According to federal law, coal ash ponds must be built more than 5 feet above groundwater with no underground connections that could allow the leakage of pollutants into the aquifer. (
  • Use EIP's Ash Tracker to see if sites near you have been tested and what pollutants are present. (
  • Contaminated groundwater under and around TVA facilities is widespread and includes boron, cobalt, manganese, and sulfate - all toxic pollutants known to be associated with coal ash. (
  • The EIP report shows that these coal ash indicator pollutants are now widespread. (
  • Last year, after complaints from utilities and coal companies, the agency relaxed certain standards, including suspending groundwater monitoring requirements for some coal ash sites if it is determined pollutants would not reach the uppermost aquifer. (
  • More than a billion gallons of coal ash -- containing an estimated 2.9 million pounds of toxic pollutants -- poured into nearby streams, fields and homes. (
  • The story also is part of a larger national question of what to do with the ash built up from the nation's long dependence on coal to produce electricity. (
  • Coal is pulverized and then burned to generate electricity. (
  • Patterson said coal ash is residue left from burning coal to create electricity. (
  • Coal ash is what is left over from power plants that burn coal for electricity. (
  • Coal ash is the toxic by-product left over when coal is burned for electricity. (
  • In addition, clean coal technologies are also encouraged, especially to reduce the carbon footprint of coal based electricity generation but also to reduce all harmful emissions. (
  • Heavily dependent on coal, with 60 percent of its electricity generated by coal-fired plants, the state has a glut of ash to contend with -- and has been encouraging utilities to use it as fill for more than 20 years. (
  • Just as buying and burning coal were part of the cost of generating electricity over the decades, so now is the expense of cleaning up the ash, it said. (
  • The official, Tom Kilgore, told the Senate Environment and Public Works Committee that the authority had found that dikes holding millions of cubic yards of toxic coal ash mixed with water at the authority's Kingston Fossil Plant in Tennessee had allowed noticeable "seepage" in 2003 and 2005. (
  • A hydraulic dredge removes coal ash from the Emory River on Wednesday, September 23, 2009 near the Kingston Fossil Plant. (
  • A hydraulic dredge removes coal ash from the Emory River next to the Kingston Fossil Plant. (
  • Since the collapse of the dam of a coal ash impoundment in Kingston, Tenn. (
  • But the agency's efforts soon ran up against massive resistance from an array of powerful interests - industries and groups that had succeeded in enabling coal ash to escape federal oversight for decades, creating a regulatory vacuum that many say made a Kingston-like disaster almost inevitable. (
  • CHARLESTON, W.Va. -- A year ago Tuesday, at about 1 a.m., a coal-ash dike ruptured at the Tennessee Valley Authority's Kingston Plant west of Knoxville, Tenn. (
  • But today, as the anniversary of the Kingston mess approaches, the battle over potential new rules to protect coalfield communities and the environment from the dangers of toxic coal ash is just getting started. (
  • However, the December 2008 massive release of coal ash from Tennessee Valley Authority's (TVA) facility in Kingston, Tenn. (
  • Ash removal continues at theTVA Kingston Plant. (
  • TVA estimates it could end up spending nearly $1 billion to clean up the Kingston coal ash and to make payments to land owners, workers and others who claim they were harmed from the disaster. (
  • As scrubbers evolved to remove more of the heavy metals (for example, lead, cadmium, selenium, etc.) contained in coal, the composition of the ash has become far more toxic. (
  • The power company has closed seven of its 14 plants where coal ash is stored in basins, and has committed to closing all of the basins. (
  • This was the first and only opportunity for direct public input on the fate of Duke's NC coal ash basins. (
  • It is imperative to our nation's waterways and communities that industry not only excavate leaking coal ash basins but take additional measures to protect public health and the environment. (
  • WE NEED YOU and your networks to help us stop Missouri's Department of Natural Resources from enacting weak state coal ash regulations. (
  • State regulators were also in attendance and participated in discussions about coal ash regulations. (
  • At a time when the EPA - now being run by a coal lobbyist - is trying to roll back federal regulations on coal ash, these new data provide convincing evidence that we should be moving in the opposite direction," Abel Russ, lead author of the report and an attorney for the Environmental Integrity Project, said in a statement. (
  • The administration also has said it plans to make an additional proposal that would further water down existing coal ash regulations. (
  • She and several other committee members said they would press for new coal ash regulations, including a requirement that it be stored in lined pits and dried out so that it could not cascade into towns and rivers. (
  • Dexter added that public input is being sought on how the coal-ash ponds are removed, saying current regulations allow companies to leave a mess for the public to clean up. (
  • EPA has long recognized the danger of coal ash and should act quickly to fulfill its duty to protect public health and the environment through strong federal regulations on coal ash. (
  • Coal ash can contain particulates (a mixture of solid particles and liquid droplets found in the air), volatile and semi-volatile organic compounds , and heavy metals. (
  • What I find disturbing is the totally false premise upon which the legislation is based: that landfilling of coal ash is necessary because existing coal ash ponds are leaking heavy metals. (
  • Runoff from coal piles may contain high concentrations of heavy metals, but Iowa does not have a water quality standard for runoff from these coal piles. (
  • Coal ash is full of toxic heavy metals that when blown through the air or leached into drinking water can be harmful to health. (
  • Without proper covers and liners, heavy metals from untreated ash can leach into drinking water or escape into the air as "fugitive ash. (
  • Tests show that coal ash contains heavy metals and carcinogens that can hazardous to humans and wildlife. (
  • But environmentalists and state regulators say those heavy metals could be seeping through the unlined bottoms of pits where liquefied coal ash has been stored for decades, into natural sources for wells where worrying concentrations have been documented. (
  • The groups sued to force the Tennessee Valley Authority to clean up coal ash pits at its Gallatin Fossil Plant. (
  • WASHINGTON - The chief executive of the Tennessee Valley Authority, which operates the coal-burning power plant responsible for an enormous flood of coal ash in East Tennessee late last month, acknowledged Thursday that the plant's containment ponds had leaked two other times in the last five years but had not been adequately repaired. (
  • Anderson County residents worried about coal ash's impact on their health and the environment learned this week the Tennessee Valley Authority gets to investigate itself and won't have to reveal the results for nearly two years. (
  • The Tennessee Valley Authority is asking the public for input on what it should do with coal ash storage areas at the former Allen Fossil Plant. (
  • The Tennessee Valley Authority wants the public to weigh in on what should be done with all the coal ash piling up at its largest fossil plant, which is on the Cumberland River. (
  • KNOXVILLE - The Tennessee Valley Authority "is very likely" to appeal a federal court order that the utility dig up and remove coal ash stored for decades at its Gallatin coal plant in Middle Tennessee, TVA President Bill Johnson said Thursday. (
  • With even the lightest wind, the tiny particles take flight, blotting out the sky like a thick sandstorm of ash, highly hazardous to people, as the fine particles are easily inhaled. (
  • Fly ash is made of very fine particles that are spherical in shape. (
  • The approach typically involves (1) ultra sensitive chemical or radiometric analyses of particles separated on the basis of size, density, mineral or magnetic properties, (2) analysis of chemical extracts that selectively attack certain components of coal or fly ash, (3) direct observation and microbeam analysis of very small areas or grains, and (4) radiographic techniques that identify the location and abundance of radioactive elements. (
  • In fly ash, the uranium is more concentrated in the finer sized particles. (
  • The particles that remain after burning coal are called coal ash, principally consisting of fly ash and bottom ash. (
  • In the composition of coal, there are many potentially hazardous substances that, if found at elevated concentration in inhaled particles, can cause major health problems in humans. (
  • Accordingly the health risk of the smallest coal ash particles (respirable particles) has to be evaluated, since they can enter into the lungs. (
  • Spark-source mass spectrometer investigation of coal particles and coal ash. (
  • The present invention relates to a process for the separation of coal particles from fly ash by flotation in water containing collector and frother. (
  • Hitherto, this quantity of coal has not been utilized but the coal particles have remained in the fly ash at the technical utilization or deposition thereof. (
  • But the Duke research revealed that when coal is burned, "the radium isotopes become concentrated in the coal ash residues, and the lead-210 becomes chemically volatile and reattaches itself to tiny particles of fly ash. (
  • The tests are specifically designed to analyze soil for the presence of fly ash particles so small other tests might miss them. (
  • Because of the size of these particles, it's been challenging to detect them and measure how much fly ash has accumulated," said Avner Vengosh, Distinguished Professor of Environmental Quality at Duke's Nicholas School of the Environment. (
  • Inhaling dust that contains fly ash particles with high levels of toxic metals has been linked to lung and heart disease, cancer, nervous system disorders and other ill effects. (
  • The new tests are designed to be used together to provide independent corroborations of whether fly ash particles are present in a soil sample and if so, at what proportion to the total soil. (
  • We also examine the soil under a microscope to test if we can physically identify fly ash particles and estimate what proportion of the soil they comprise. (
  • Though Duke has sought rate increases to make customers pay for cleaning up ash pits, utilities are clearly to blame for the contamination, Holleman said. (
  • Piles of coal ash in unlined pits threaten one of the south's premier rivers. (
  • The ash coats any items left outside and, after a short time, pits them and destroys their exterior. (
  • The ash is dumped into unlined pits at approximately 1,400 sites around the country. (
  • From just this initial survey of these reports, we can see that groundwater contamination from coal ash pits is a grave concern. (
  • Anderson County residents have raised concerns about what will happen to coal ash pits in the future. (
  • The toxic components of the ash leach through unlined pits into drinking water and can also pose hazards to public health when left in open pits without top covers. (
  • A coal-fired power plant on Sutton Lake, N.C. Fish in this lake and others that receive coal-ash effluents have been found to contain higher levels of the contaminant selenium. (
  • Of the three coal ash discharge lakes tested in the new study, Sutton Lake had the highest levels of selenium. (
  • We chose these agents (with the exception of selenium and thallium) for testing because they were found to be in high concentrations in fly ash-contaminated soil as compared to non-fly ash-contaminated soil in Roane County," said Dr. Cragle. (
  • But on Sunday evening, she took her three children aged 8 months to 13 to the municipal evacuation center at the town proper after coal ash and dust were blown by strong winds to their house from a coal-fired power plant in the village. (
  • Smoke rises from a coal-fired power plant in Illinois. (
  • Wherever there are coal plants, there is coal ash, and unfortunately 68 percent of African-Americans live within 30 miles of a coal-fired power plant. (
  • We want Puerto Rico to close the coal-fired power plant. (
  • Then, early this morning, over 100 police officers, including a militarized "strike force," mobilized to stop residents of Guayama from blockading trucks carrying toxic ash as they left the coal-fired power plant en route to Peñuelas. (
  • Ameren Missouri's coal-fired 2,400-megawatt Labadie power plant. (
  • TVA is investigating the impact of coal ash from its Bull Run power plant on the public's health. (
  • Just ask the Moapa Band of Paiutes living next to the Reid Gardner coal plant in Nevada, who joined this suit, or the residents living near the Louisville Gas & Electric Cane Run Power Plant, where coal ash has caused 'persistent' air quality and health issues for years now . (
  • In Puerto Rico, there's a growing struggle of residents across the island who are demanding the island's only coal-fired power plant be closed-and that the private company, AES , stop dumping toxic coal ash near the southern town of Peñuelas. (
  • Coal-fired power plant fly-ash, not included on. (
  • A five-story coal ash pile next to the AES electric power plant in Guayama, Puerto Rico. (
  • The AES coal-fired power plant in Guayamas, Puerto Rico. (
  • The source of the coal ash is a 454-megawatt coal-fired electric power plant in Guayama owned by the utility AES that has been operating since 2002. (
  • OAK CREEK -- State regulators investigating a bluff collapse at an Oak Creek power plant in October 2011 say one of the biggest factors that led to the collapse appears to be coal ash that was deposited in the ravine in the 1950s and 60s. (
  • Coal ash ponds at the Vermilion Power Plant, located in the floodplain of the Middle Fork of the Vermilion River. (
  • The deal is the latest in the hot-potato issue of what to do with coal ash from the Bruce Mansfield Power Station, Pennsylvania's largest coal-fired power plant. (
  • Second, it underscores the need to regularly monitor sites in close downwind proximity to a coal-fired power plant, even if levels of contamination are below current safety thresholds. (
  • When a natural disaster occurs, contamination from coal ash can affect drinking water systems. (
  • Because utilities were forced to report groundwater monitoring data by the 2015 coal ash rule, as well as report whether their coal ash ponds are actually sitting in groundwater, we now know the scope and severity of water contamination from coal ash in Georgia," Earthjustice senior counsel Lisa Evans said. (
  • Hexavalent chromium contamination from coal ash is clearly a grave threat. (
  • But the agency noted that the groundwater monitoring required by the 2015 rule was merely a "first step" in a process intended to assess and address any contamination from coal ash storage sites. (
  • Mercury: Chronic exposure of mercury from coal ash can cause harm to the nervous system. (
  • Exposure to coal ash and to the toxic substances it contains may pose a health risk to workers in coal-fired power plants and residents living near coal ash disposal sites. (
  • Philbeck said it wasn't just Rudo but regulators with the state Department of Health and Human Services, where Rudo works, and DEQ that agreed on a new, far more stringent threshold for the presence of the substance hexavalent chromium in drinking water in private wells near coal ash storage last year. (
  • It also calls for an expansion of monitoring to include drinking water near coal ash sites. (
  • Eslinger and Haven shared their stories with members of Congress this week during the Coal Ash Fly-In, as did more than 40 other activists from Ohio, Pennsylvania, Illinois, Wisconsin, Michigan, Virginia and Maryland who live near coal ash sites and are coping with health and environmental effects as well. (
  • The Environmental Integrity Project ( EIP ) has once again put together a fantastic report regarding water contamination near coal ash disposal sites. (
  • For years, the individual defendants have known that the company's coal ash containment was inadequate and posed a significant threat to the environment yet utterly failed to take appropriate action to fix the substantial problems,' the lawsuit states. (
  • Some of the compounds found in coal ash can cause cancer after continued long-term ingestion and inhalation. (
  • Depending on the type of coal that was burned, the chemical composition found in coal ash can vary. (
  • An EPA risk assessment found that living near a wet coal ash impoundment is more dangerous than smoking a pack of cigarettes a day. (
  • What is a coal ash impoundment? (
  • The breach in the TVA coal ash surface impoundment flooded more than 300 acres of land, damaging homes and property. (
  • Fly ash is a very fine, powdery residue from coal-fired plants (like factories). (
  • The system addresses increasing concerns about coal ash containment and the possibility of groundwater contamination. (
  • But Dr. Chris Groves, a professor of hydrogeology at Western Kentucky University, said in the court case that he considered the Gallatin Plant coal ash disposal sites "unsuitable for the containment of coal ash. (
  • Dominion Virginia Power has settled disagreements with two foes over its plans to discharge coal ash wastewater from its Possum Point and Bremo power stations into Virginia's rivers and streams, but the battle over coal ash disposal isn't going away. (
  • RICHMOND, Va. - After months of debate and revision, a state regulatory board approved a proposed permit that will allow Dominion Virginia Power to discharge coal-ash wastewater into the James River. (
  • We are particularly concerned because these so-called dewatering permits are the first of its kind in Virginia, and they could set a worrisome precedent for how the agency plans to deal with the problem of coal-ash wastewater throughout the Commonwealth," said Tish Tablan, with SELC. (
  • The report also discusses cases in which the toxin has killed aquatic wildlife, contaminated wells, and adversely affected wildlife, reported the Tennessean, with the causes linked to coal ash wastewater. (
  • Waterkeeper Alliance spotted suspicious activity at Duke's Cape Fear plant and NC DENR confirmed Duke had illegally pumped at least 61 million gallons of coal ash contaminated wastewater into a tributary that feeds the Cape Fear River. (
  • St. Louis NPR, KWMU Radio Station article on groundwater contamination at Missouri coal ash sites. (
  • See newly released report, Coal's Poisonous Legacy: Groundwater Contamination by Coal Ash Across the U.S. with summary data on Missouri and other states. (
  • The EPA has not yet made a decision on whether or not to classify coal ash as toxic, but reports show that the substance poses significant risks to human health. (
  • But Duke has about 108 cubic yards of coal ash in its existing ponds. (
  • The ash swamped houses and polluted the Emory River. (
  • Aerial view of a barge with hydraulic dredging equipment removing ash from the navigation channel of the Emory River. (
  • The threat of hexavalent chromium contamination in drinking water is present at hundreds of unlined coal ash sites across the country. (
  • At least 28 coal ash sites in 17 states have already released chromium to groundwater at levels exceeding by thousands of times a proposed drinking water goal for hexavalent chromium. (
  • In this written health consultation, ATSDR focuses on determining whether exposures to fly ash, air, surface water, and surface soil in the affected neighborhood on Rostosky Ridge Road could result in harmful health effects. (
  • Monday's report also details multiple instances, largely in rural areas, in which residential tap water has been affected by coal ash. (
  • We continue to see no concerns for nearby drinking water wells or lake water quality," she said, adding that critics are using the lab results to advance their agenda as they push for the most disruptive and expensive way to close coal ash storage sites. (
  • Ash storage sites at the plant are leaking into surface water and groundwater upstream of drinking water intakes for more than 1 million people in the Charlotte region, the report says, calling the thallium and radium results alarming. (
  • Watkins and other residents suspect the network of ash ponds at Duke's Rogers Energy Complex in Mooresboro, N.C. State law only requires utilities to provide clean water to residents living within a half-mile of such ponds, a limit that geologists say has no scientific basis. (
  • Citizens across the South fear that coal ash poisons the water they drink and swim in and the fish they catch. (
  • A new report, however, shows that even contained, stored ash can have lead to water contamination and negative health impacts. (
  • Coal ash is putting drinking water around these sites at risk. (
  • Gulf Power has a federal Clean Water Act permit, which allows it to discharge treated coal ash water and chlorinated condensing water directly into the Apalachicola through an outfall. (
  • Coal ash in India has been stored in ash ponds and has contaminated surrounding land and water bodies. (
  • McCrory has has talked about the need to move ash ponds away from bodies of water. (
  • The most expensive option would add $1 billion to $2 billion more for additional coal ash treatment and water processing. (
  • Utilities with coal ash ponds were required to complete water monitoring this year. (
  • There the ash poses a significant threat to drinking water, neighborhoods, and air quality. (
  • Lowering of water level for a construction project revealed toxic coal ash contamination bleeding into the lake from Duke Energy's Buck Steam Station near Salisbury. (
  • The state in 2015 set a health-screening level of 0.07 parts per billion, or 1,400 times more restrictive than the federal level, to meet a requirement from the 2014 state coal ash management law requiring that do-not-drink notices go out when there is a risk of one in 1 million people contracting cancer in drinking water. (
  • Anderson County officials are taking the lead in seeking answers on behalf of residents worried over recent news of what's in coal ash, what it may have done to hundreds of workers and what it may be doing to their water, air and land. (
  • The second would mean leaving the ash in place, but removing most of the moisture and capping it to keep water from getting in. (
  • Ask Iowa to further assess the impact of coal storage areas on both groundwater and surface water. (
  • As part of the law, Duke has to test the well water of residents who live within 1,500 feet of its 14 coal-fired power plants to help the state decide which of Duke 's coal-ash ponds should be closed first and which wells are contaminated. (
  • The amendment was named for Rep. Tom Bevill , a 15-term Democratic congressman from coal-dependent Alabama who chaired the powerful House Energy Development and Water Appropriations Subcommittee. (
  • In total, last year's report revealed 53 sites in the United States where coal ash had polluted drinking water supplies. (
  • As I mentioned in my column last week - just look at Charlotte, N.C., where Duke Energy's coal ash has contaminated the lake that provides drinking water for the 750,000 residents in the area . (
  • Material interface, able to distinguish where radioactive and non-radioactive material meet such as an ash and water barrier. (
  • The team used graphene oxide, a recently discovered nanomaterial, to manipulate the reaction of fly ash with water and turn the activated fly ash into a strong cement-like material. (
  • The team designed the fly ash concrete to be pervious, which means water can pass through it to replenish groundwater and to mitigate flooding potential. (
  • Across the country, meanwhile, coal ash has fouled water sources and endangered public health. (
  • There are three coal-ash ponds which contain approximately 357 million gallons of water (dependent on rainfall) at the Bremo Bluff Power Station in Fluvanna, up river of Richmond. (
  • The water which sits on top of the coal-ash is considered the least toxic part, explained Brad McLane with the Southern Environmental Law Center (SELC). (
  • The tour happened at a critical time for citizens to speak out for a transparent, swift, and protective plan to safely store coal ash and ensure safe drinking water for neighbors of coal ash sites. (
  • Credit: Yma Smith Kuklish's neighbors, George Markish and Yma Smith, both live within 500 yards of the coal refuse site and are worried their health may have been damaged by inhaling ash blowing off the site or drinking it in after it has seeped into the ground water. (
  • The highly toxic ash sits mixed with water in wet, unlined lagoons next to nearly every major waterway in the Southeast. (
  • Water and ash continued to leak throughout the week as crews worked to plug the pipe. (
  • The multi-billion expense of removing coal ash from existing ponds, rather than capping and keeping them in place, also could push up power costs without necessarily improving water quality, Webb said. (
  • Tony Bowdoin is one of 45 Central Georgia residents living near America's largest coal-fired plant who claim in a lawsuit that the utility has unlawfully released, discharged and deposited coal ash into their community's drinking water source. (
  • According to the lawsuit, the filters that let the ash pond's water into the monitoring wells are all positioned 380 feet above mean sea level, which is too high to detect contamination in the aquifer. (
  • Rehn favors removing coal ash from on-site storage sites to ones located away from streams or aquifers that are vital to local water supplies. (
  • Owners of coal plants have a responsibility to dutifully dispose of coal ash in order to prevent any sort of water contamination", said Ammons in a news release. (
  • RICHMOND, Va. (WRIC/CNS) - A procession of more than 100 disappointed citizens filed out of a Virginia State Water Control Board meeting late Thursday afternoon after the agency approved permits for Dominion Virginia Power to begin draining water from coal ash ponds on sites in Fluvanna and Prince William counties into the James and Potomac rivers. (
  • Surovell suggested that the board consider delaying its decision to allow further study into harm that water from draining coal ash ponds might pose to the creeks and rivers - especially Quantico Creek, which is already impaired due to high concentrations of nickel in the creek bed. (
  • With approval of the permits, Dominion now must file a plan with the Virginia Department of Environmental Quality for treating the water in its coal ash ponds at Bremo Power Station, roughly 50 miles upstream of Richmond on the James River, and the Possum Point Power Station, located 30 miles south of Washington, D.C., at the confluence of the Potomac River and Quantico Creek. (
  • Once the approximately 500 million gallons of contaminated water is treated and drained from these two sites, the utility must obtain further permits to bury the remaining solid coal ash with layers of protective lining, soil and vegetation. (
  • The consent decree, being filed today in the U.S. District Court for the Middle District of Pennsylvania in Harrisburg, requires Talen Energy to undertake significant and costly actions at multiple coal ash disposal areas, including addressing seeps, evaluating local water quality, and ensuring that any discharge fully complies with the Clean Water Act. (
  • Is coal ash poisoning Charlotte-area drinking water? (
  • To keep coal ash out of the air, it's often weighed down with water and pumped into holding ponds. (
  • Coal ash is produced mainly from burning coal in coal-fired power plants. (
  • Eleven of Georgia's 12 coal-powered plants are leaking chemicals into the groundwater, according to a study by a group of environmentalists that was released Thursday. (
  • Georgia Power is in the process of shutting down all 29 of its coal ash ponds at 11 plants statewide. (
  • The study found that the 10 coal ash ponds that violate the aquifer separation requirement are located at six Georgia Power plants: Plants Bowen, Hammond, McIntosh, Scherer, Wansley and Yates. (
  • The voluminous data became publicly available for the first time last year because of a 2015 regulation that required disclosures by the overwhelming majority of coal plants. (
  • In addition, at the Marshall, Riverbend and Allen plants, which are also in the Charlotte region, groundwater near ash storage sites flows away from neighbors, Culbert noted. (
  • Three coal plants in total send their coal ash on barges down the Monongahela River to LaBelle, where trucks then load the ash and drive it up to the disposal site. (
  • Coal ash is produced at coal-fired power plants. (
  • Therese Vick, researcher for the Blue Ridge Environmental Defense League, which is one of the plaintiffs in a related lawsuit over the sites, called on the state Department of Environmental Quality to halt coal ash shipments to both plants until the issues raised in the report can be investigated. (
  • The three lakes are, or until recently were, discharge sites for effluents from coal-fired power plants. (
  • Duke has 33 coal ash ponds at seven retired plants and seven operating plants. (
  • He said it is possible Duke will determine that all the ash must be moved from all the plants. (
  • Dominion Energy North Carolina's customers in the northeastern part of that state depend on Virginia-based generation, including those coal plants, but the General Assembly so far seems fine with billing us for their share of these costs. (
  • Coal ash must be disposed of after it has been burned, and coal-burning power plants create a great deal of which they need to dispose. (
  • About 99% of the fly ash produced is collected in the flue gas filters of the plants. (
  • Forty two of the 91 coal-fired plants surveyed by EPA either did not respond, had no groundwater monitoring data, reported that available monitoring did not indicate that any standards had been exceeded, or claimed confidentiality. (
  • Coal ash is produced by coal-fired power plants and is often stored in ponds. (
  • Records show employees at individual power plants have complained to federal health investigators about ill effects from ash exposure as far back as the 1970s. (
  • Coal-fired power plants have increasingly effective scrubbers that capture toxic fumes produced by burning coal before they are emitted into ambient air. (
  • For the past 10 years, utility companies had been sending coal ash - the material that's left over from the coal fires that fuel electric power plants - to a disposal area up the hill. (
  • The Georgia-based firm is a wholly owned subsidiary of Charlotte-based Cogentrix, which in turn is a wholly owned subsidiary of The Goldman Sachs Group and operates a number of small coal-fired power plants in the eastern U.S. (
  • The ash from coal-burning power plants could provide a new source for rare-earth elements. (
  • Coal ash is the problematic residuum left over from burning coal and is commonly stored in retaining ponds generally on site of coal burning power plants. (
  • The permits are the first step in Dominion's plan to close 11 coal ash ponds sited on four power plants around the state at an estimated cost of $325 million. (
  • Most Dominion Virginia Power plants, including the sites at Bremo and Possum Point, have been converted from coal to natural gas and therefore no longer produce coal ash. (
  • The tests consistently showed that most of the samples collected downwind of both plants contained fly ash contamination, but because the proportion of the fly ash was low, the concentrations of toxic elements did not exceed human health guidelines for metals occurrence in soil. (
  • Larissa Liebmann, Waterkeeper Alliance attorney, said: "We hope more coal plants nationwide will follow this example. (
  • The bulk of that would cover ongoing costs of replacing coal-burning plants with natural gas and storm repairs. (
  • Thorium concentrations in coal fall within a similar 1 4 ppm range, compared to an average crustal abundance of approximately 10 ppm. (
  • In ash from some types of coal, the concentrations of rare earths are as much as 100 times higher than when they're found naturally in the Earth's crust . (
  • We saw that in the 2008 TVA coal ash disaster in Roane County, Tennessee, when one billion gallons of coal ash spilled into a beautiful riverside community. (
  • Ever sensitive to industry's needs and wishes, Republicans in the House of Representatives have drafted a bill to ban federal regulation of coal ash, H.R. 2273 . (
  • So it's not surprising that, in my new report on the impacts of coal ash regulation , I found that it would increase employment by 28,000 jobs. (
  • Strict regulation of coal ash disposal would create a net increase of 28,000 jobs. (
  • The EPA is also handing over regulation of coal ash to states, which means the complex, politically fraught job of regulating coal ash will be left to underfunded state environmental agencies and, ultimately, lawmakers who have proven unable to stand up to corporate powerhouses such as Duke, says Frank Holleman, an attorney with Southern Environmental Law Center. (
  • An alternative option would leave regulation of coal ash disposal up to the states, as it is now. (
  • It's just a shame that this all could have been prevented if the federal government had taken coal ash regulation seriously. (
  • The month after the Tennessee disaster, EPA Administrator Lisa Jackson signaled during her Senate confirmation hearing that the agency would revisit the issue of coal ash regulation. (
  • Rep. Tom Bevill played a key role in stopping federal regulation of coal ash in the 1980s. (
  • Currently, the regulation of utilities' management of coal ash ponds is left up to the states. (
  • I think there needs to be federal regulation of the fly ash and the construction of these reservoirs," the Associated Press reports quotes him as saying. (