2 edition of Biodegration and carbon adsorption of carcinogenic and hazardous organic compounds found in the catalog.
Biodegration and carbon adsorption of carcinogenic and hazardous organic compounds
Edward G Fochtman
by U.S. Environmental Protection Agency, Municipal Environmental Research Laboratory, Center for Environmental Research Information [distributor] in Cincinnati, OH
Written in English
|Contributions||Municipal Environmental Research Laboratory|
|The Physical Object|
|Pagination||2 p. ;|
Frieda O. and Nava N., Characteristics of organic removal by PACT simultaneous adsorption and biodegradation, Water Research, 31(3), () Ruey S.J., Wen C.H. and Ya H.H., Treatment of phenol in synthetic saline wastewater by solvent extraction and two phase membrane biodegradation, Journal of Hazardous. The degradation rate of many organic compounds is limited by their bioavailability, which is the rate at which a substance is absorbed into a system or made available at the site of physiological activity, as compounds must be released into solution before organisms can degrade rate of biodegradation can be measured in a number of ways.
Assessment of biological activity and fate of organic compounds in a reactor for the measurement of biodegradable organic carbon in water. Journal of Applied Bacteriology , 79 (5), DOI: /jtbx. J. Howard Slater, Alan T. Bull, David J. by: Abstract. In the aerobic atmosphere currently prevailing at the Earth’s surface, the most stable form of carbon is its fully oxidised state, CO atmosphere contains x 10 12 tonnes of carbon as CO 2 which is in equilibrium with even larger amounts ( x 10 14 tonnes) in solution in the rivers, lakes and oceans (Schlegel, ). From this pool of oxidised carbon begins a series of Cited by: 4.
Adsorption on activated carbon is a proven, reliable technology for the removal of small quantities of soluble organic compounds from water or wastewater. In addition, activated carbon adsorption has been cited by the US Environmental Protection Agency as one of the best available environmental control technologies [ 3 ].Cited by: Activated Carbon and its Applications Foreword hydrocarbons and other organic pollutants. Yet another broad field of application for activated carbon is the Adsorption on Activated Carbon Adsorption is understood as the accumulation of gaseous compo-nents, or solutes dissolved in liquids, on to the surface of.
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The carbon adsorption isotherms and the ease of biodegradation were deter- mined experimentally for 11 organic compounds selected from EPA's Priority Pollutant List and OSHA's List of Regu- lated Carcinogens. Get this from a library. Biodegradation and carbon adsorption of carcinogenic and hazardous organic compounds.
[Edward G Fochtman; Municipal Environmental Research Laboratory.]. Although the extensive carbon adsorption literature has reports on the adsorption of pesticides,5'6 fatty acids,7 amines,8'9 aromatics,8 and chlori- nated hydrocarbons, there is very limited published data on the adsorption of carcinogenic compounds at low, 1 mg/£, and lower concentrations reported here dealt with chemicals identified as carcinogens Ozone Oxidation The work Ozone has long been.
Adsorption of trace organic contaminants by granular activated carbon (GAG) was assessed relative to the removal of taste and odor (T&O) compounds and disinfection. Despite the relatively high concentration of phenanthrene in the soil (approximately mg kg −1), the biodegradation kinetics was observed to be first-order in separate biodegradation.
Activated Carbon Adsorption introduces the parameters and mechanisms involved in the activated carbon adsorption of organic and inorganic compounds. This book offers an in-depth look at the chemical and biological cycling of nutrients, trace elements, and toxic organic compounds in wetland soil and water column as related to water quality.
Therefore, the DOC was removed by adsorption and biodegradation; the removal efficiency by biodegradation was 31%, and that by adsorption was 24%. The breakthrough behaviors of DOC and NBDOC continued to be saturated as the bed volume increased, whereas the BDOC breakthrough curves maintained a certain ratio according to the bed by: 8.
Volatile organic compounds (VOCs) means any compound of carbon, excluding carbon monoxide, carbon dioxide, carbonic acid, metallic carbides or carbonates, and ammonium carbonate, which participates in atmospheric photochemical reactions, except those designated by U.S.
Environmental Protection Agency (EPA) as having negligible photochemical by: 7. Hydrocarbons components have been known to belong to the family of carcinogenic and neurotoxic organic pollutants. In addition for the radioactive wastes; the hazard of harmful irradiation can be.
the process with activated carbon treatment. • Stripping of a part of the organic volatile compounds leads to air pollution prob-lems and the necessity to cover the aerated basins and to treat the waste air. • Certain effluents are only diluted, such as those from chemical plants with a high concentration of non-biodegradable compounds.
Biodegradation aspects of Polycyclic Aromatic Hydrocarbons (PAHs): A review is the tool to transform the compounds to less hazardous/non-hazardous forms with less input of chemicals, energy, and time organic compounds through biotransformation into less complexCited by: Biodegradation is a natural process by which organic chemicals in the environment are converted to simpler compounds, mineralised and redistributed through elemental cycles such as the carbon, nitrogen and sulphur cycles.
Biodegradation can only occur within the biosphere as microorganisms play a central role in the biodegradation process.
Polycyclic aromatic hydrocarbon (PAH) biodegradation was investigated in contaminated soils from two different industrial sites under simulated land treatment conditions. Soil samples from a former impregnation plant (soil A) showed high degradation rates of PAHs by the autochthonous microorganisms, whereas PAHs in material of a closed-down coking plant (soil B) were not degraded Cited by: Biodegradation is the most effective way in which algae remove PCs from an aqueous phase.
Algae form simpler molecules by catalytically degrading complex parent compounds. Peng et al. demonstrated that 95% of the biodegradation of progesterone can be achieved by the two freshwater algae S.
obliquus and Chlorella pyrenoidosa, in an aqueous. Due to intensive agriculture, rapid industrialization and anthropogenic activities have caused environmental pollution, land degradation and increased pressure on the natural resources and contributing to their adulteration.
Bioremediation is the use of biological organisms to destroy, or reduce the hazardous wastes on a contaminated site. A REVIEW ON BIODEGRADATION OF PHENOL FROM INDUSTRIAL EFFLUENTS 3 Phenol is lethal to fish even at relatively low levels, e.g.
mg/L, depending on the temperature and state of maturity of rainbow trout (Brown et al. Phenolic compounds are also responsible for several biological effects, including antibiosis (Gonzalez etCited by: 7. Polycyclic aromatic hydrocarbons: Sources, effects and biodegradation Mariya Brazkova, Albert Krastanov Abstract: Polycyclic aromatic hydrocarbons (PAHs) are a class of hazardous organic compounds consisting of three or more fused benzene rings in linear, angular, and cluster arrangements.
PAHs occur in. The factors affecting decolorization and biodegradation of dye compounds such as pH, temperature, dye concentration, effects of carbon dioxide and nitrogen, agitation, effect of dye structure, electron donor and enzymes Many dyes and pigments are hazardous and toxic for human as well as aquatic life organic carbon source, as well as the.
Abstract. In India, 12 lakhs deaths per annum take place due to air pollution according to a report by Greenpeace organization. Volatile organic compounds are major air pollutants which are released into the environment through mobile sources, stationary sources, area Author: Margavelu Gopinath, Rose Havilah Pulla, K.
Rajmohan, Parthasarthy Vijay, Chandrasekaran Muthukuma. John B. Wilcox, in Environmental Solutions, Organic Contaminants and Wastes. Organic contaminants and wastes are compounds primarily composed of carbon, hydrogen, and potentially other elements.
Gas or liquid-phase organic contaminants may include volatile organic compounds (VOCs) in the form of solvents, chemical precursors and intermediates, petroleum compounds, etc. Solid organic.G. Speight, in Environmental Organic Chemistry for Engineers, In Situ and Ex Situ Biodegradation.
Biodegradation applications fall into two broad categories: (1) in situ or (2) ex situ. In situ biodegradation processes treats the contaminated soil or groundwater in the location in which it was found. Ex situ biodegradation processes require excavation of contaminated soil or. However, persistent organic pollutants can be removed by artificial methods such as photodecomposition, electrochemical and bioactive carbon fibres Cited by: 1.