1 edition of Degradation kinetics of chlorinated aromatic compounds in saturated subsurface environments found in the catalog.
Degradation kinetics of chlorinated aromatic compounds in saturated subsurface environments
1990 by U.S. Environmental Protection Agency, Environmental Research Laboratory in Athens, GA .
Written in English
|Statement||John E. Rogers ... [et al.]|
|Series||Environmental research brief, Environmental research brief|
|Contributions||Rogers, J. E., Environmental Research Laboratory (Athens, Ga.)|
|The Physical Object|
|Pagination||7 p. :|
The chemistry and analysis of the large Polycyclic Aromatic Hydrocarbon. New York: Wiley ; pp. ]. Main cause of soil and water pollution is the release of hydrocarbons accidentally or through human activities [4 Holliger C, Gaspard S, Glod G, et al. Contaminated environments in the subsurface and bioremediation: organic contaminants Cited by: 8. Annual Meeting of the American Society for Microbiology Symposium on "Microbiological Degradation of Chlorinated Aromatic and Aliphatic Compounds" Updated date: Septem - . UNESCO – EOLSS SAMPLE CHAPTERS WATER QUALITY AND STANDARDS – Vol. II - Surface Water Degradation by Human Activities - Yun. S. Kim ©Encyclopedia of Life Support Systems (EOLSS) contaminated areas amounted to μg day-1; in other less heavily contaminated areas, daily intakes of μg day-1 have been found. Mercury in wastewater produced by chemical plants . Enhanced bioremediation is an efficient technology when compared to alternative technologies. The two major advantages are lower capital cost and the ability to perform the task insitu. Beginning around , enhanced biodegradation, or biostimulation, became widely accepted as a leading treatment technology. Many effective biostimulation supplements have been demonstrated and include the.
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Degradation kinetics of chlorinated aromatic compounds in saturated subsurface environments (OCoLC) Material Type: Government publication, National government publication, Internet resource: Document Type: Book, Internet Resource: All Authors / Contributors: J E Rogers; Environmental Research Laboratory (Athens, Ga.).
V-/EPA United States Environmental Protection Agency Environmental Research Laboratory Athens, GA Research and Development EPA//M/ June ENVIRONMENTAL RESEARCH BRIEF Degradation Kinetics of Chlorinated Aromatic Compounds in Saturated Subsurface Environments John E.
Rogers1, Jacobus Struijs2, Dorothy D. Hale3, and Frank Bryant3 Abstract Results are. Degradation kinetics of chlorinated aromatic compounds in saturated subsurface environments. Athens, GA: U.S.
Environmental Protection Agency, Environmental Research Laboratory,  (OCoLC) Material Type: Document, Government publication, National government publication, Internet resource: Document Type: Internet Resource, Computer. Organochlorines are simultaneously of great value to society and a great threat to human health and the living environment.
Their recalcitrance, toxicity and carcinogenicity have driven research activity towards an understanding of degradation mechanisms in the environment and the development of technologies enhancing degradation.
This review focuses primarily on the role of organochlorine Cited by: Biodegradation of Chlorinated Compounds—A Review Article (PDF Available) in Critical Reviews in Environmental Science and Technology 37(2) March with 4, Reads.
EPA//A/ Environmental Chemistry and Kinetics of Biotransformation of Chlorinated Organic Compounds in Ground Water John T. Wilson, Don H. Kampbell, and Jim Weaver Subsurface Protection and Remediation Division, National Risk Management Research Laboratory, U.S. EPA, R.S. Kerr Research Laboratory, Ada, Oklahoma Introduction Responsible management of the risk associated.
Hydrocarbons are common constituents of surface, shallow, and deep-subsurface environments. Under anaerobic conditions, hydrocarbons can be degraded to methane by methanogenic microbial consortia. Kinetics: PCE to TCE and/or cDCE Kinetics: cDCE or VC to E Activity to 20 mg g-1 dwt d-1 Activity to mg g-1 dwt d-1 Reactions catalyzed by reduced enzyme cofactors Cobalt containing vitamin B12; Nickel containing Factor biological degradation of chlorinated solvents is occurring.
Implementation of the remedy includes the placement of “sentinel” wells between the plume edge and exposure points, establishing a long term sampling plan, and drawing up contingency plans in the event of unforeseen.
Degradation of chlorinated aromatic compounds in VASB reactors Further, it dechlorinates pcp at the meta position when induced with 3-chlorobenzoate. In contrast, D. hafniense dechlorinates pcp at the ortho position producing ,5-TCP (Madsen and Licht, ).Cited by: Biodegradation rates for the five compounds followed the order: phenol = 2-CP > 2,4,6-TCP > 2,4-DCP.
PCP was degraded more slowly than phenol or 2-CP, but similarly to 2,4,6-TCP and 2,4-DCP. Different soils exhibited different degradation rates, and the soil Cited by: Final Report: Mechanisms, Chemistry, and Kinetics of Anaerobic Degradation of cDCE and Vinyl Chloride EPA Grant Number: RC Subproject: this is subproject numberestablished and managed by the Center Director under grant R (EPA does not fund or establish subprojects; EPA awards and manages the overall grant for this center).
Final Report: Degradation of Chlorinated Aliphatic Compounds by Nitrifying Bacteria EPA Grant Number: RC Subproject: this is subproject numberestablished and managed by the Center Director under grant R (EPA does not fund or establish subprojects; EPA awards and manages the overall grant for this center).
ELSEVIER Journal of Contaminant Hydrology 19 () JOURNAL OF Contaminant Hydrology Field-scale investigations on the biodegradation of chlorinated aromatic compounds and HCH in the subsurface environment Doris Feidieker, Peter K~impfer 1, Wolfgang Dott Fachgebiet Hygiene der Technischen Universitiit Berlin, Amrumerstr.
32, D Berlin, Germany Received 25 July ; Cited by: Kinetics of chlorinated hydrocarbon degradation by Methylosinus trichosporium OB3b and toxicity of trichloroethylene.
Oldenhuis R(1), Oedzes JY, van der Waarde JJ, Janssen DB. Author information: (1)Department of Biochemistry, University of Groningen, The by: High-Resolution Delineation of Chlorinated Solvent Concentrations, Pore Water Velocity, Biogeochemical Processes, and Microbial Communities in Saturated Subsurface Environments W.
Andrew Jackson, Stephen Morse, and Haley Schneider Texas Tech University Paul Hatzinger and Paul Koster Van Groos CB&I Federal Services.
issues posed by subsurface releases of chlorinated solvents has been a journey into the unknown. Fortunately, as was the case with Powell’s endeavors, experience has been a keen instructor. Through the knowledge we have gained, we now stand well prepared to find pragmatic solutions.
Chlorinated Solvents • Trichloroethene, Tetrachloroethene, Trichloroethane, Carbon Tetrachloride, etc • Ubiquitous Contaminants in Groundwater – Present at 80% of Superfund Sites Nationwide – Primary COC for 44/48 state and federal sites in AZ • Several Toxicological Effects.
The natural attenuation of organic compounds, particularly fuels and chlorinated solvents, has been subject to study for some time. The basic physical processes which, unaided by deliberate human intervention, reduce the concentration, toxicity, or mobility of.
As in other studies, highly chlorinated parent compounds are dechlorinated more quickly than their lesser chlorinated daughter products (Scheutz et al., ; Miura et al., ) The microcosms amended with lactate and butyrate showed a complete dechlorination, but the lactate seems to be the best electron donor.
The adding of digester sludge Cited by: 9. Kinetics of perchloroethylene degradation 33 0e CC= −kt (1) where k is the first order rate constant and it is estimated from the slope by plotting lnC versus time the correlation factors (R2) in this study were larger thanindicating that the degradation of PCE follows first order kinetics model.
compounds that reach the environment by natural and anthropogenic ways. Among hydrocarbons, there are several groups of compounds that exhibit high toxicity (polycyclic aromatic hydrocarbons, PAHs, BTEX components, etc.).
In the environmental samples, the majority of these compounds are analyzed by specific gas or liquid chromatography methods. Three topics related to the degradation of hydrophobic and hydrophilic compounds in percarbonate systems were studied.
The first chapter provides a literature review and a brief description of the three treatment systems used in the present research: catalyzed hydrogen peroxide propagations (CHP), sodium percarbonate (PC), and base-activated persulfate (BAP) treatment : Sattam Fahad Almojil.
To evaluate whether natural attenuation can achieve legal standards for groundwater cleanup, the fate of contaminants in the groundwater environment has to be well what direction do the contaminants move.
How far will they spread. Will they degrade to innocuous compounds. While similar questions need to be answered for any proposed remedy for contamination, providing clear.
The first comprehensive guide to one of todays most innovative approaches to environmental contamination Natural attenuation is gaining increasing attention as a nonintrusive, cost-effective alternative to standard remediation techniques for environmental contamination.
This landmark work presents the first in-depth examination of the theory, mechanisms, and application of natural. box complexity of the contaminated subsurface: a hypothetical example Every conceivable subsurface remediation approach is subject to constraints posed by fundamental principles such as conservation of mass, conservation of energy, the theoretical limitation on energy efficiency embodied in the Second Law of Thermodynamics, and the.
Natural Attenuation of Fuels and Chlorinated Solvents in the Subsurface [Wiedemeier, Todd H., Rifai, Hanadi S., Newell, Charles J., Wilson, John T.] on *FREE* shipping on qualifying offers. Natural Attenuation of Fuels and Chlorinated Solvents in the SubsurfaceCited by: The extreme conditions under which haloarchaea survive make them good bioremediation agents in water treatment processes and in saline and hypersaline environments contaminated with toxic compounds such as nitrate, nitrite and ammonia, chlorine compounds such as perchlorate and chlorate, heavy metals, and aromatic compounds.
New advances in the understanding of haloarchaea Cited by: 5. Biochemical decomposition of catechol and 4-chlorocatechol, degradation intermediate products of 4-chlorophenol, was investigated using enzymes and their immobilized forms by clay minerals. An oxygenase that can initiate oxidative ring-fission of aromatic compounds was obtained via cloning of its gene (cphA-1) encoding hydroxyquinol dioxygenase contained in Arthrobacter Cited by: 3.
Degradation ofSyntheticChemicals inthe Environment VolumeEditor: Vol.2/P, It is about reactions, pathways, thermodynamics and kinetics. An important purpose of this Handbook, is to aid understanding of the basic distribution advice as to future editions of.
Biodegradation of crude oil in subsurface petroleum reservoirs is an important alteration process with major economic consequences1. Aerobic degradation of petroleum hydrocarbons at. Biodegradation Kinetics of 1,4-Dioxane in Chlorinated Solvent MixturesCited by: Junko Hara (February 24th ).
Chemical Degradation of Chlorinated Organic Pollutants for In Situ Remediation and Evaluation of Natural Attenuation, Organic Pollutants Ten Years After the Stockholm Convention - Environmental and Analytical Update, Tomasz Puzyn and Aleksandra Mostrag-Szlichtyng, IntechOpen, DOI: / Available from:Cited by: 5.
Because of persistent tissue residues and chronic toxicity, use of chlorinated hydrocarbon compounds has been drastically curtailed. Only lindane and methoxychlor are approved for use on or around livestock.
Detectable residues of some chlorinated hydrocarbon insecticides, including BHC, heptachlor, heptachlor epoxide, lindane, and oxychlordane, can be found in fatty tissue after acute or. A side-by-side comparison of bioaugmentation, biostimulation, and a recirculation-only control was implemented in a chloroethene-contaminated aquifer.
The objective was to develop a contaminant mass balance based on the analysis of groundwater and aquifer solids and to quantify key dechlorinating populations during treatment to determine their relation to the rate of chloroethenes removed.
The first comprehensive guide to one of today's most innovative approaches to environmental contamination Natural attenuation is gaining increasing attention as a nonintrusive, cost-effective alternative to standard remediation techniques for environmental contamination.
This landmark work presents the first in-depth examination of the theory, mechanisms, and application of natural attenuation.5/5(1). Aerobic biodegradation of chlorinated compounds has been widely examined as an alternative to anaerobic degradation.
There have been several reports of aerobic bacterial strains that can utilize chlorinated ethenes as growth substrates (e.g. Coleman et al., ), as well as many strains that cooxidize these compounds (Futamata et al., ).Cited by: soil and groundwater are contaminated with chlorinated solvents (Sutfin ).
Under reducing and anaerobic geochemical conditions, chemical and biological degradation processes can contribute significantly to the removal of chlorinated solvents from the subsurface (Brown).
Eganhouse, R.P., Baedecker, M.J., and Cozzarelli, I.M.,Biogeochemical processes in an aquifer contaminated by crude oil--An overview of studies at the Bemidji. Chapelle, F.H.,A mass balance approach to monitored natural attenuation, in Proceedings of the Fourth International Conference on Remediation of Chlorinated and Recalcitrant Compounds, Monterey, Calif., MayColumbus, Ohio, Battelle Press, (Contact The Conference Group Inc.
for information on the availability of the. Characterization of subsurface polycyclic aromatic hydrocarbons at the Deepwater Horizon site Arne‐R. Diercks,1,2 Raymond C. Highsmith,2 Vernon L. Asper,1,2 DongJoo Joung,1 Zhengzhen Zhou,1 Laodong Guo,1 Alan M.
Shiller,1 Samantha B. Joye,3 Andreas P. Teske,4 Norman Guinasso,5 Terry L. Wade,5 and Steven E. Lohrenz1 Received 8 August ; revised 30 August ; accepted 3 September Cited by: Anaerobic degradation: In the subsurface, the microbial degradation of oxidized aromatic compounds such as benzoate and halogenated aromatic compounds such as the halobenzoates, Removal and degradation of phenol in a saturated flow by in-situ electrokinetic remediation and fenton-like process.
J. .Elevated levels of chlorinated hydrocarbons including perchlorethene (PCE) and trichloroethene (TCE) were identified in the subsurface at the dry cleaning facility. Chlorinated contaminant levels as high as ug/L PCE and ug/L TCE were measured and formed a plume migrating off-site and beneath a public school (Figure 1).