Main goal of this dissertation was the production of inexpensive soluble and immobilized enzymes for removal of phenols and dyes from wastewater. (gov.rs)
Wastewater released from various industries contains many pollutants, like heavy metals which are hazardous not only for humans but also affects other species which makes the water unsuitable for use. (e-ijep.co.in)
Due to these characteristics, the obtained magnetic carbon nanocages can be used as efficient and recycled adsorbents in the removal of dye staff from textile wastewater. (hindawi.com)
Organic10
The functionalized fibers were applied for the photoconversion of 4-chlorophenol and Orange G as model organic pollutants. (seals.ac.za)
Furthermore, the rise in industrial activities, especially those that use secondary compounds and high amounts of water in their processes, has increased the concentration in water sources of pollutants, such as metals, radioactive materials, halogenated compounds, persistent organic pollutants, and bioaccumulative and toxic chemicals, such as pesticides. (ncsu.edu)
Analysis of pesticides and other organic pollutants by preconcentration and chromatographic techniques. (cdc.gov)
In addition, a thorough comparison of adsorption performances toward heavy metal ions, cationic dyes and organic pollutants were listed. (fzxb.org.cn)
Exposure, bioaccumulation, metabolism and monitoring of persistent organic pollutants in terrestrial wildlife. (comprehensivephysiology.com)
Assessing bioaccumulation factors of persistent organic pollutants in aquatic food‐chains. (comprehensivephysiology.com)
Persistent Organic Pollutants: A Global Issue, A Global Response https://www.epa.gov/international‐cooperation/persistent‐organic‐pollutants‐global‐issue‐global‐response. (comprehensivephysiology.com)
Airaksinen R, Rantakokko P, Eriksson JG, Blomstedt P, Kajantie E, Kiviranta H. Association between type 2 diabetes and exposure to persistent organic pollutants. (comprehensivephysiology.com)
A significant class of toxic pollutants includes heavy metals, fluorinated carbons, and organic and inorganic pollutants [6, 7]. (jchemrev.com)
Toxic3
Dyes and phenols containing halogens which tend to deactivate the aromatic nuclei constitute a significant category of highly toxic and difficult-to-degrade pollutants from a wide variety of industries. (gov.rs)
Phenol is a kind of toxic chemical intermediates, which was used to synthesize carbon materials [ 33 - 35 ]. (hindawi.com)
The results indicated that increased temperature has no significant effect on the removal of Erythrosine dye, and the highest adsorption was achieved in the first 30 min of adsorbent- dye contact time. (irost.ir)
Cationic and anionic dye adsorption by agricultural solid wastes: A comprehensive review. (irost.ir)
Adsorption of a hazardous dye, erythrosine, over hen feathers. (irost.ir)
Analyzing adsorption data of erythrosine dye using principal component analysis. (irost.ir)
Equilibrium and kinetic studies on basic dye adsorption by oil palm fibre activated carbon. (irost.ir)
Equilibrium, kinetic and thermodynamic studies on the adsorption of phenol onto activated phosphate rock. (irost.ir)
Adsorption kinetics and thermodynamics of removal of basic dyes by stishovite clay-TiO 2 nanocomposite. (irost.ir)
Comparison of optimised isotherm models for basic dye adsorption by kudzu. (irost.ir)
Modeling of adsorption isotherms of phenol and chlorophenols onto granular activated carbon: Part I. Two-parameter models and equations allowing determination of thermodynamic parameters. (irost.ir)
Key research and development directions of CNFs absorbents for the future were concluded including industrialized and low cost preparation, adsorption toward various varieties of pollutants, improvement of mechanical properties, electric facilitated adsorption, recycling use and more extensive applications. (fzxb.org.cn)
Research progress in structure design of carbon nanofibers and their adsorption mechanism and applications toward sewage pollutants[J]. Journal of Textile Research, 2020, 41(08): 135-144. (fzxb.org.cn)
Chlorine3
Phenols substituted with one or more chlorine atoms in any position. (lookformedical.com)
No chlorophenol formation - Chlorine combines with phenols to form chlorophenols, causing taste and odor problems. (ionic.co.in)
Chlorine dioxide destroys phenols, eliminating many taste and odor problems. (ionic.co.in)
Pesticides1
Production sites of PCDD/PCDF precursors ( e.g . chlorophenols, chlorinated pesticides, PCB) or HCB precursors ( e.g . perchlorethene, trichloroethene, tetrachlormethane) and related waste deposits. (pops.int)
Chemical4
Primary pollutants are emitted directly into the atmosphere from the chimneys of factories or automobiles, and secondary pollutants are generated by chemical reactions and photochemical reactions in the atmosphere of the discharged pollutants. (wikipedia.org)
The monitoring of the level of toxins, chemical pollutants, microbial contaminants, or other harmful substances in the environment (soil, air, and water), workplace, or in the bodies of people and animals present in that environment. (lookformedical.com)
Cyclohexanone is the main intermediate for the synthesis of caprolactam and adipic acid, and it is also a raw material for the preparation of spices, rubber antioxidants, adhesives, vinegar and fruit preservative phenolic phenol, and can also be used as fine chemical auxiliaries. (blogspot.com)
Hydrazine is commonly used in numerous fields, such as catalysis, medical, chemical, fabric dyes, farming industries, and as a monopropellant and bipropellant rocket fuel in aerospace industries [9-11]. (jchemrev.com)
Degradation1
In order to minimize the adverse environmental impacts, Advanced Oxidation Processes (AOPs) are used in the degradation of those pollutants to achieve high removal rates. (ufsm.br)
Aromatic1
The largest amounts of PCDD/PCDF and other unintentional POPs were generated in the production processes of organochlorine chemicals, in particular of PCDD/PCDF precursors such as chlorophenols, PCB or other chlorinated aromatic compounds. (pops.int)
Aquatic1
In this study, Erythrosine dye removal from an aquatic environment using natural absorbents, namely Sorghum and Ziziphus nummularia pyrene, was reviewed. (irost.ir)
Secondary2
When air pollutants are classified according to the generation process, they can be divided into primary and secondary pollutants. (wikipedia.org)
Numerous researchers have examined the secondary effects of pollutants from simple assessable soil properties. (shuibiao001.com)
Soil1
Use for soil pollutants in general or for which there is no specific heading. (lookformedical.com)
Removal8
Moreover, the highest amount of dye removal was observed in a concentration of 20 mg/L for the Ziziphus nummularia pyrene adsorbent and 5 mg/L of the Sorghum adsorbent. (irost.ir)
A comparison of chemisorption kinetic models applied to pollutant removal on various sorbents. (irost.ir)
were tested in the batch reactor for phenol, p-chlorophenol and pbromophenol removal. (gov.rs)
In the case of 2.5 mM substrates with Eupergit C250L-PPO, around 45% removal of p-bromophenol was achieved, while p-chlorophenol and phenol were removed 35% and 20%, respectively. (gov.rs)
The reusability of Eupergit C250L-PPO for the removal of p-chlorophenol has been tested. (gov.rs)
Biocatalyst was tested in the batch reactor for p-chlorophenol and pbromophenol removal from aqueous solution. (gov.rs)
With soluble PPO, under optimized conditions 93-99.9% removal of dyes was achieved after 1h using 424 - 1700 U/mL of PPO, depending on dye. (gov.rs)
Study of solar photo-Fenton system applied to removal of phenol from water. (ufsm.br)
Harmful1
These pollutants have harmful effects on health, triggering some severe problems, and prolonged exposure to these pollutants can be life-threatening [8, 9]. (jchemrev.com)
Exposure1
Agay‐Shay K, Martinez D, Valvi D, Garcia‐Esteban R, Basagana X, Robinson O, Casas M, Sunyer J, Vrijheid M. Exposure to endocrine‐disrupting chemicals during pregnancy and weight at 7 years of age: A multi‐pollutant approach. (comprehensivephysiology.com)
Humans1
page needed] Air pollution refers to the fact that the constituents of the atmosphere change due to the excessive presence of pollutants emitted artificially and naturally, and their quality deteriorates, which adversely affects the life activities of humans and animals, and plants. (wikipedia.org)
Reactions1
Corrigendum to "Liquid-phase solvent-less reactions for value addition of glycerol and phenols over nano porous aluminosilicates" [Mater. (elsevierpure.com)
Air pollutants can be broadly divided into gaseous substances and particulate matter. (wikipedia.org)
Types1
The inherent variety of functional groups that they have provides a better interaction with certain types of pollutants. (ncsu.edu)
Materials1
Clearly, nontoxic and carbon-rich renewable lignin could replace the phenol as the precursor of carbon materials. (hindawi.com)
International1
According to the International Joint Study on Long-distance Air Pollutants (LPT) in Northeast Asia, China's air pollutants have an average effect of 32% on ultrafine dust in three Korean cities. (wikipedia.org)
Highly1
However, the molecular structure of lignin consists of repeating units of the p-hydroxyphenyl (H), guaiacyl (G), and syringyl (S) (Figure 1 ) [ 30 ], which had a highly cross-linked structure close to the network of phenol resin [ 31 , 32 ]. (hindawi.com)
Photocatalytic Degradation2
10] L.G. Devi, R. Kavitha, A review on non metal ion doped titania for the photocatalytic degradation of organic pollutants under UV/solar light: Role of photogenerated charge carrier dynamics in enhancing the activity, Applied Catalysis B: Environmental, 140 (2013) 559-587. (irost.ir)
In this study, the photocatalytic degradation of azo-dye acid orange 10 was investigated using titanium dioxide catalyst suspension, irradiation with ultraviolet-C lamp and bismuth vanadate under visible light of light-emitting diode lamp. (gjesm.net)
Degradation1
5] M. Pera-Titus, V. Garcıa-Molina, M.A. Baños, J. Giménez, S. Esplugas, Degradation of chlorophenols by means of advanced oxidation processes: a general review, Applied Catalysis B: Environmental, 47 (2004) 219-256. (irost.ir)
Organic2
Organic pollutants can enter water supplies through contamination from farm run-off, landfills, factories, spills, and improper disposal. (netsolwater.com)
Analysis of pesticides and other organic pollutants by preconcentration and chromatographic techniques. (cdc.gov)
Oxidation2
Advanced oxidation processes (APOs) of aromatic compounds, particularly of phenol, yield several benzene derivatives, such as hydroquinone, catechol, and resorcinol, as intermediate metabolites of its transformation. (hindawi.com)
The formation of hydroquinone and -benzoquinone at early stages of phenol oxidation increases the toxicity of phenol wastewaters, showing that these compounds were more toxic and less degradable than the original pollutant [ 2 ]. (hindawi.com)
Hydrocarbons1
Several anaerobic bacteria from the human intestinal tract are capable of reducing azo dyes and nitropolycyclic aromatic hydrocarbons to the corresponding aromatic amines with enzymes that have azoreductase and nitroreductase activities. (nih.gov)
Compounds1
Reduction of azo dyes and nitroaromatic compounds by bacterial enzymes from the human intestinal tract. (nih.gov)
Presence1
page needed] Air pollution refers to the fact that the constituents of the atmosphere change due to the excessive presence of pollutants emitted artificially and naturally, and their quality deteriorates, which adversely affects the life activities of humans and animals, and plants. (wikipedia.org)
Acid2
Response surface methodology was successfully employed to optimize the treatment of acid orange 10 dye and assess the interactive terms of four factors. (gjesm.net)
Thus, it seems necessary to increase the photocatalytic activity of bismuth vanadate in combination with titanium dioxide to remove acid orange 10 dye in subsequent studies. (gjesm.net)
Directly2
Primary pollutants are emitted directly into the atmosphere from the chimneys of factories or automobiles, and secondary pollutants are generated by chemical reactions and photochemical reactions in the atmosphere of the discharged pollutants. (wikipedia.org)
In the last decades, environmental pollutants have been directly connected to the increase in human diseases, particularly those involved with the immune system. (hindawi.com)
Study1
According to the International Joint Study on Long-distance Air Pollutants (LPT) in Northeast Asia, China's air pollutants have an average effect of 32% on ultrafine dust in three Korean cities. (wikipedia.org)
Process1
When air pollutants are classified according to the generation process, they can be divided into primary and secondary pollutants. (wikipedia.org)