Biological chemical precipitation. Medical search. Frequent questions

A chemical refinery plant located in Qinghai, China operated a non-biological wastewater treatment plant with chemical precipitation followed by clarification, conventional media filtration, and finally, with reverse osmosis (RO). (filtsep.com)
Once the larger particles are removed, the water undergoes chemical filtration. (theruntime.com)
Biological filtration is the next stage, where beneficial microorganisms are introduced to purify the water further. (theruntime.com)
Au total, 222 échantillons d'eau ont été prélevés en 2008 et 2009 : 49 échantillons de stations d'épuration des eaux usées (aux points d'entrée, dans les cuves de précipitation, dans les cuves de filtration et aux points de sortie), 127 échantillons d'eau du robinet et 46 échantillons d'eau de camions-citernes et d'établissements fournissant de l'eau par osmose inverse. (who.int)

When the chemicals are put into the wastewater during the primary sedimentation process, this is called pre-precipitation. (aosts.com)
Primary sludge is generated from processes such as sedimentation, chemical precipitation or other primary processes. (conserve-energy-future.com)
The plant, which takes care of the sewage from about 100,000 persons, was built for sedimentation, biological purification with activated sludge and chemical purification through post-precipitation in a separate step. (tidskriftenvatten.se)

The activated sludge concept for wastewater treatment is probably by far the most utilised system for organic removal, as well as biological nutrient removal ever since it was first developed by Arden and Lockett in 1915 [1]. (scirp.org)
Activated sludge is an example of suspended-growth biological treatment. (wateronline.com)
When chemical removal is used, there may be more sludge produced than usual. (aosts.com)
Secondary sludge is waste biomass that results from biological treatment processes. (conserve-energy-future.com)
It contains high amounts of heavy metals, pathogens and other chemicals, which can leach out if the sludge is not managed well. (conserve-energy-future.com)
Sewage sludge incineration can also be done as it kills the pathogens, reduces the volume of the sludge and decomposes most organic chemicals. (conserve-energy-future.com)
The addition of surplus biological sludge to the primary sludges for dewatering has been problematic for the belt press and the screw press. (hiller-us.com)
The construction of a new biological treatment plant on many sites has necessitated the need for dewatering the bacteriological sludge produced by the aeration tank. (hiller-us.com)
Previous research determined that fixed-film systems can perform biological nitrogen and phosphorus removal with nitrifying PAOs, which produced less sludge. (waterworld.com)
A synthetic medium simulating the COD and the biological degradable organic matter (BOD) of domestic wastewater sludge was formulated to exclude variations in the evaluation of domestic wastewater sludge as carbon source in the treatment of AMD. (ndltd.org)

The chemical composition of the ash depends on the treatment method (either biological or chemical) used in wastewater treatment plants. (degruyter.com)
Dissolution and precipitation chemistry, and chemical precipitation reactions in water and wastewater treatment. (metu.edu.tr)
UF systems for river water or surface water treatment purposes that fit the needs of different industries and application such as chemical and pharmaceutical manufacturing, food and beverage processing, mining and wastewater treatment…etc. (hinadatech.com)

Potential water treatment processes for inorganic contaminants can be grouped into three categories: physical ( see Part 3 ), chemical ( see Part 4 ), and biological. (wateronline.com)
Mathematical models describing precipitation processes in one step need to be upgraded. (unav.edu)
analysis of pollution control processes: chemical and biochemical kinetics, mass balances, reactor analysis, energy balances, mass-transport processes with particular emphasis on examples of environmental pollution control processes. (metu.edu.tr)
The researchers' analysis of winter storms in 2011 found that dust and biological aerosols tend to enhance precipitation-forming processes in the Sierra Nevada. (ucsd.edu)
Supports model development by laboratory-based experimental studies, aiming at improved model descriptions of key aerosol and cloud processes, such as SOA formation via BVOC oxidation, and SOA aging and associated changes in chemical and physical properties. (lu.se)

Identifiability of the parameters of the model was evaluated using a sensitivity and a collinearity analysis for six simulation case studies of struvite precipitation. (unav.edu)

Microbial bioreactors rely on suitable carbon sources such as ethanol, grasses and manure and the creation of anaerobic conditions for the reduction of sulphate, chemical oxidizable organic matter (COD) and to neutralise pH. (ndltd.org)
You need short-chain organic acids in the anaerobic section for biological phosphorous removal. (biologicalwasteexpert.com)
The anaerobic biotower is used as the first biological treatment step to biodegrade and reduce organics level by at least 90 percent. (evoqua.com)

Another example of attached-growth biological treatment is the ABMet process originally developed by Applied Biosciences of Salt Lake City, UT (now part of GE Water), which uses biological sulfate reduction to precipitate arsenic and heavy metals. (wateronline.com)
The equalized leachate is then sent to a physical/chemical precipitation unit to precipitate heavy metals before biological treatment. (evoqua.com)

The hydrogen molecule damages the ocular surface by altering the pH, whereas the anion causes protein denaturation, precipitation, and coagulation. (medscape.com)

Chemicals can also be added during the post-precipitation process or during what is called co-precipitation. (aosts.com)

Testing on Nanostone's CM-151TM ceramic membrane has shown their ceramic UF has a higher suspended solids limit, lower fouling potential and the ability to recover with chemical cleaning without reduction in membrane life. (filtsep.com)
Coordination chemistry, oxidation and reduction chemistry and its environmental chemical applications. (metu.edu.tr)
Transforms into less hazardous substances examples are ion exchange, precipitation, neutralization and oxidation or reduction. (tutorialspoint.com)
Assessement of Biological, Chemical and Combined Treatments for Color Removal and COD Reduction of Azo Dyes at Lab Scale. (lu.se)

4) The potential to develop an enhanced biological phosphorus removal. (scirp.org)
In most cases, using chemical treatments for phosphorus removal have also been more cost-effective. (aosts.com)
Biological phosphorus removal usually through enhanced Bio-P removal (EBPR) to reduce phosphorus in the water. (waterworld.com)
In biological phosphorus removal, conditions promoting the growth of phosphorus-accumulating organisms (PAO) must be maintained. (biologicalwasteexpert.com)

These are engineered treatment systems that use an organic substrate to drive microbial and chemical reactions to reduce acidity and concentrations of metals and sulfate in industrial waters (Interstate Technology & Regulatory Council, 2013, Biochemical Reactors for Mining-Influenced Waste ), primarily mining-influenced water (MIW). (wateronline.com)
www.eventbrite.co.uk/e/sofie-organic-fertilizers-summit-tickets-55703185728 * note: "Organic Fertilisers" here refers to nutrient products containing organic carbon, not to organic 'non chemical' farming. (phosphorusplatform.eu)
The surface characteristics of various materials, as well as their chemical and organic origin, when suspended in water, can influence colonization by bacteria [5]. (who.int)

For example, radium tends to precipitate as the sulfate, which is the basis for its isolation for chemical analysis by coprecipitation with barium sulfate. (cdc.gov)

Dye is a component of the effluent of many chemical industries, including plastic, textile, paper and pharmaceutical. (iwaponline.com)
However the environmental legislation of recent years has forced many mills to install secondary or biological treatment for the wastewater in order to reduce trade effluent charges by reducing COD levels. (hiller-us.com)
Based on previous performance, Bio-Dome has demonstrated the ability to remove organics, solids, ammonia and P. If the metal ions apply within or after the treatment of Bio-Dome, the effluent will contain less P under the lower cost and chemical dosage. (waterworld.com)
The dyestuffs and polyvinyl alcohol (PVA) are the main refractory organics of concern in terms of meeting more stringent effluent standards of chemical oxygen demand (COD) and colour. (uludag.edu.tr)

Pathogens, such as bacteria, viruses and parasites, that cause disease in humans and animals may depend partially or entirely for their existence on other physical, chemical, or biological factors. (who.int)

To extract the metal, workers must make these compounds undergo a chemical reaction. (wikipedia.org)
This step focuses on removing harmful chemicals and compounds that may still be present. (theruntime.com)
Merely, the rearrangement of chemical bonds produces new compounds. (jove.com)
Except in the laboratory where radium compounds have been isolated and determined for a certain purpose, determination of radium compounds in biological and environmental samples is relatively rare. (cdc.gov)
[ 1 ] While almost any chemical can cause ocular irritation, serious damage generally results from either strongly basic (alkaline) compounds or strongly acidic compounds. (medscape.com)

Despite numerous studies on the dissolution properties of calcium phosphate (CaP) coatings, the coating "shelf life" (i.e. the chemical stability of these coatings prior to implantation), has not been investigated adequately, particularly for CaP coatings applied to polymeric substrates. (omicsonline.org)

The purpose of these filters is to remove harmful chemicals like chlorine, lead, mercury, pesticides and other pollutants so you can enjoy clean tasting drinking water every day without worrying about its safety or quality. (theruntime.com)

The type of the precipitating agent is also significant: iron or aluminium salts used for phosphorus compound precipitation cause a higher concentration of Fe or Al in ash. (degruyter.com)
Chemicals from water softening/ demineralisation, clarification salts etc. (nzdl.org)
The chemical P removal is brought about by the addition of salts of multivalent metal ions that form precipitations. (waterworld.com)

Barnes DH, Jugdaosingh R, Kiamil S, Best SM (2 011) Shelf Life and Chemical Stability of Calcium Phosphate Coatings Applied to Poly Carbonate Urethane Substrates. (omicsonline.org)
This paper examines the chemical stability of CaP coatings that were applied to a poly carbonate urethane (PCU) substrate by an aqueous, low temperature technique. (omicsonline.org)
To provide a tangible benefit in vivo, CaP coatings should exhibit sufficient chemical stability to remain adhered to the substrate. (omicsonline.org)

It was revealed that sewage treatment technology as well as combustion technology influence many physical and chemical parameters of ashes that are crucial for further phosphorus recovery from such waste according to the proposed method. (degruyter.com)
This article will describe the biological treatment technologies that may be considered. (wateronline.com)
To address the Chemical and Biological Defense programs (CBDs) need for medical countermeasures against mycotoxin intoxication, PhysicalOptics Corporation (POC) proposes to develop a new Mycotoxin Neutralization Treatment (MyNT). (sbir.gov)
The metal ions usually apply before/or following biological treatment. (waterworld.com)
Operating costs for BIO-FIX treatment, which ranged from $1.40 to $2.30 per 1,000 gal of water treated, were comparable with chemcial precipitation costs. (cdc.gov)

An extensive treatability study was conducted that included initial wastewater characterization, biological screening shake flask tests and a six month flow-through bench scale laboratory study that simulated the process kinetics for the proposed full-scale system. (evoqua.com)

Chemical methods have generally proven to be more effective than other treatments. (aosts.com)

Sometimes, phosphorus is removed using biological methods. (aosts.com)
According to Net Industries , chemical methods of removing phosphorus are more often used than biological methods. (aosts.com)
The phosphorus is removed from the wastewater usually by chemical or biological methods. (waterworld.com)
Chemical methods. (tutorialspoint.com)
Biological methods. (tutorialspoint.com)
Recently, different physical, chemical and biological methods can be used to contamination removal from wastewater. (jwent.net)
The purpose of this chapter is to describe the analytical methods that are available for detecting and/or measuring and monitoring radium in environmental media and in biological samples. (cdc.gov)
Some analytical methods for the determination of radium in biological materials are given in Table 6-l. (cdc.gov)

multiple waste sources cause big upsets with the biological or chemical clarification process. (filtsep.com)

The U.S. Bureau of Mines has developed porous beads containing immobilized biological materials such as sphagnum peat moss for extracting metal contaminants from waste waters. (cdc.gov)

In this study, wastewaters from textile dyeing factories in Bursa were characterized, and physical, chemical and biological treatability studies were carried out. (uludag.edu.tr)

It uses a chemical reaction to form a particulate matter in solutions either by changing the substance into insoluble form or even by changing the properties of the solution to diminish the solubility of the contaminant. (tutorialspoint.com)
A chemical reaction is a process where atoms in one or more substances, known as reactants, rearrange their structure by breaking the chemical bonds between their atoms and forming new bonds to create the products. (jove.com)
A chemical reaction is a process by which the bonds in the atoms of substances are rearranged to generate new substances. (jove.com)
Matter cannot be created or destroyed in a chemical reaction-the same type and number of atoms that make up the reactants are still present in the products. (jove.com)
A chemical reaction takes starting materials-the reactants-and changes them into different substances-the products. (jove.com)

Discussion of important relevant concepts of chemistry, and introduction of basic environmental chemical concepts including pH, alkalinity, hardness, dissolved oxygen, Biochemical Oxygen Demand (BOD), and Chemical Oxygen Demand (COD). (metu.edu.tr)

Nanoparticles of hydroxyapatite (HA) and calcium deficient hydroxyapatite (CDHA) were synthesized by wet chemical precipitation. (maastrichtuniversity.nl)

Most ores are the chemical compound of the metal and other elements, such as oxygen (as an oxide), sulfur (as a sulfide), or carbon and oxygen together (as a carbonate). (wikipedia.org)
VZJVWSHVAAUDKD-UHFFFAOYSA-N Potassium permanganate Chemical compound [K+]. (google.com)

For all chemical reactions, the number of atoms of each element of reactants is balanced with the products they generate. (jove.com)
Under certain theoretical conditions, all chemical reactions can be reversible. (jove.com)
In chemical reactions, the bonds between the atoms are broken and reformed, which means that the shared electrons among the atoms are rearranged. (jove.com)
Additionally, macromolecules can act as enzymes-catalysts that greatly speed up chemical reactions in biological systems. (jove.com)
Most biological reactions would take far too long to complete without enzymes. (jove.com)

however, young black males are more likely to have high-concentration, high-impact alkaline chemical injuries secondary to assault. (medscape.com)

As a Group IIA alkaline earth element, radium is similar in its chemical behavior to other members of that group, especially its nearest neighbor, barium. (cdc.gov)

Chemicals are added to the water to create precipitates that can be easily removed. (theruntime.com)
AFRIKAANSE OPSOMMING: Suur mynwater (SMW) is afvalwater wat deur die myn- en industriële bedryf gegenereer word en bevat kenmerklik hoë konsentrasies swaar metale en swawel wat potensieel in toksiese afvalwater omskep kan word indien blootgestel aan opgelosde suurstof, water en mikro-organismes. (ndltd.org)
A field study of aerosol impacts on clouds and precipitation in the Sierra Nevada shows that dust and microorganisms transported from as far away as the Sahara desert help to spur the precipitation that California counts on for its water supply. (ucsd.edu)
The CalWater field campaign, funded by the California Energy Commission and led by UC San Diego and NOAA, could help western states better understand the future of their water supply and hydropower generation as climate change influences how much and how often dust travels around the world and alters precipitation far from its point of origin. (ucsd.edu)
These waters include acid mine drainage (AMD) water from mining sites, metallurgical and chemical industry waste water, and contaminated ground water. (cdc.gov)

This biological process has been successful with both high-TDS (35,000 mg/L total dissolved solids) and low-temperature (4 o C) waters. (wateronline.com)
Methane-generating pit, septic tank are all at certain gas by measures such as precipitation, anaerobism, fermentations in additionTemperature condition competence exertion effect, but in the winter of severe cold, temperature is ultralow, and natural pond function disappears substantially. (google.com)
Contributes with work on downscaling of climate model results to local scale, with focus on extreme precipitation and temperature events. (lu.se)

Biological systems for arsenic removal require a relatively long residence time, such as four to eight hours. (wateronline.com)
This process is comparable to the partitioning of fabrics and facies observed in hot spring systems, however, the role of microbes in precipitation is apparently less important on Foel Fawr. (cardiff.ac.uk)

Nanoparticles and scaffolds were characterized regarding morphology, chemical and mineral composition, porosity and mechanical properties. (maastrichtuniversity.nl)
The severity of this injury is related to chemical composition, pH, volume, concentration, duration of exposure, and the degree of penetration of the chemical. (medscape.com)

In the physical and chemical studies, 60-80% COD, 80% suspended solids (SS) and 10-92% turbidity removal efficiencies were obtained. (uludag.edu.tr)
In the biological studies, 90% COD and 40% SS removal were obtained. (uludag.edu.tr)

Mikrobiese bioreaktore maak staat op n geskikte koolstofbron soos etanol, grasse en bemesting en die skep van 'n anaerobiese omgewing vir die verwydering van sulfate en chemies oksideerbare organiese material (CSB), asook die neutralisering van pH. (ndltd.org)

Identifiability of the parameters could be the reason behind the shifting parameter values describing mechanisms of precipitation in the literature. (unav.edu)

Besides dust, aerosols can be composed of sea salt, bits of soot and other pollution, or biological material. (ucsd.edu)
In previous studies, researchers have found that pollution particles have the opposite effect, suppressing precipitation in the Sierra Nevada. (ucsd.edu)

Perchlorates can form naturally in the atmosphere, leading to trace levels of perchlorate in precipitation. (cdc.gov)

The method can be used for automated detection of chemical/post- translational modifications, quality control of experiments and labelling approaches, and to control the modification settings of protein identification tools. (lu.se)

The oxygen in the ore binds to carbon at high temperatures as the chemical potential energy of the bonds in carbon dioxide (CO2) is lower than the bonds in the ore. (wikipedia.org)

As it is not normal surfactant or biological foam, anti-foams have limited effect on the Nocardia foam. (biologicalwasteexpert.com)

Safety glasses can help prevent injuries, but industrial accidents often involve chemicals under high pressure. (medscape.com)

[ 7 ] More than 60% of chemical injuries occur in workplace accidents, 30% occur at home, and 10% are the result of an assault. (medscape.com)

To our knowledge, no one has been able to directly determine the origin of the critical aerosols seeding mid-level clouds which ultimately produce periods with extensive precipitation typically in the form of snow at the ground. (ucsd.edu)
Chemical injuries to the eye represent one of the true ophthalmic emergencies, wherein time is truly critical. (medscape.com)

Anatomy4

Organisms5

Diseases2

Chemicals and Drugs27

Analytical, Diagnostic and Therapeutic Techniques and Equipment26

Phenomena and Processes35

Disciplines and Occupations4

Anthropology, Education, Sociology and Social Phenomena2

Technology, Industry, Agriculture4

Information Science6

Health Care14

Publication Characteristics1

Filtration4

Sedimentation3

Sludge10

Wastewater treatment3

Processes5

Struvite precipitation1

Anaerobic3

Heavy metals2

Coagulation1

Post-precipitation1

Reduction4

Phosphorus removal4

Organic3

Precipitate1

Effluent4

Bacteria1

Compounds5

Dissolution1

Chlorine1

Salts3

Coatings3

Treatment5

Characterization1

Treatments1

Methods8

Clarification1

Contaminants1

Treatability1

Reaction5

Chemistry1

Calcium1

Compound2

Reactions5

Secondary1

Barium1

Water5

Temperature3

Systems2

Composition2

Removal2

Sulfate1

Parameters1

Pollution2

Atmosphere1

Method1

Carbon dioxide1

Foam1

Involve1

Occur1

Critical2