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Title: Mechanisms, Chemistry, and Kinetics of Anaerobic Biodegradation of cDCE and VC

Abstract

Biological reductive dehalogenation of the chlorinated ethenes, tetrachloroethene (PCE) and trichloroethene (TCE) to cis-1,2-dichloroethene (cDCE), vinyl chloride (VC) and then ethene is of great interest both for natural attenuation and engineered remediation of these hazardous contaminants in groundwater. This study was directed towards a better understanding of the factors affecting the rate and extent of conversions of cDCE and VC to ethene, which are generally considered the rate limiting steps in the overall process. The objectives of this study are to (1) determine the biochemical pathways for reductive dehalogenation of cDCE and VC, including identification of the enzymes involved, (2) determine the chemical requirements, especially the type and quantity of electron donors needed by the microorganisms for reductive dehalogenation, and (3) evaluate the kinetics of the process with respect to the concentration of both the electron donors and the electron acceptors (cDCE and VC).

Authors:
;
Publication Date:
Research Org.:
Department of Civil and Environmental Engineering, Stanford University, Stanford, CA; Department of Civil and Environmental Engineering, Stanford University, Stanford, CA (US)
Sponsoring Org.:
USDOE Office of Environmental Management (EM) (US)
OSTI Identifier:
826074
Report Number(s):
EMSP-54666-2000
R&D Project: EMSP 54666; TRN: US200424%%427
DOE Contract Number:  
FG07-96ER62300
Resource Type:
Technical Report
Resource Relation:
Other Information: PBD: 1 Jun 2000
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; 54 ENVIRONMENTAL SCIENCES; ATTENUATION; BINDING ENERGY; BIODEGRADATION; CHEMISTRY; DEHALOGENATION; ELECTRONS; ENZYMES; KINETICS; MICROORGANISMS; VALENCE; VINYL CHLORIDE

Citation Formats

Mcarty, Perry L, and Sporman, Alfred M. Mechanisms, Chemistry, and Kinetics of Anaerobic Biodegradation of cDCE and VC. United States: N. p., 2000. Web. doi:10.2172/826074.
Mcarty, Perry L, & Sporman, Alfred M. Mechanisms, Chemistry, and Kinetics of Anaerobic Biodegradation of cDCE and VC. United States. doi:10.2172/826074.
Mcarty, Perry L, and Sporman, Alfred M. Thu . "Mechanisms, Chemistry, and Kinetics of Anaerobic Biodegradation of cDCE and VC". United States. doi:10.2172/826074. https://www.osti.gov/servlets/purl/826074.
@article{osti_826074,
title = {Mechanisms, Chemistry, and Kinetics of Anaerobic Biodegradation of cDCE and VC},
author = {Mcarty, Perry L and Sporman, Alfred M},
abstractNote = {Biological reductive dehalogenation of the chlorinated ethenes, tetrachloroethene (PCE) and trichloroethene (TCE) to cis-1,2-dichloroethene (cDCE), vinyl chloride (VC) and then ethene is of great interest both for natural attenuation and engineered remediation of these hazardous contaminants in groundwater. This study was directed towards a better understanding of the factors affecting the rate and extent of conversions of cDCE and VC to ethene, which are generally considered the rate limiting steps in the overall process. The objectives of this study are to (1) determine the biochemical pathways for reductive dehalogenation of cDCE and VC, including identification of the enzymes involved, (2) determine the chemical requirements, especially the type and quantity of electron donors needed by the microorganisms for reductive dehalogenation, and (3) evaluate the kinetics of the process with respect to the concentration of both the electron donors and the electron acceptors (cDCE and VC).},
doi = {10.2172/826074},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2000},
month = {6}
}

Technical Report:

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