Record Display for the EPA National Library Catalog
RECORD NUMBER: 9 OF 25
|OLS Field Name||OLS Field Data|
|Main Title||Extraction of Degradation Rate Constants from the St. Joseph, Michigan Trichloroethene Site.|
|Author||Weaver, J. W. ; Wilson, J. T. ; Kampbell, D. H. ;|
|CORP Author||National Risk Management Research Lab., Ada, OK. Subsurface Protection and Remediation Div.|
|Additional Subjects||Ground water ; Anaerobic conditions ; Biodegradation ; Plumes ; Chlorine organic compounds ; Ecological concentration ; Mass flow ; Base flow ; Enviroinmental transport ; Groundwater movement ; Extraction ; Chemical reaction kinetics ; Dechlorination ; Water pollution control ; Attenuation ; Saint Joseph(Michigan) ; Trichloroethene ; Dichloroethene ; Rate constrants|
Anaerobic biodegradation of TCE occurs through successive dechlorination from trichloroethene to dichloroethene, vinyl chlorine and ethene. The process produces three isomers of DCE (1,1-DCE, cis-1,2-DCE, and trans-1,2-DCE). Although TCE was commonly used in industry, the DCEs were not; and ethene would not be expected in most ground waters. Thus the presence of these compounds are indicative of degradation when found in anaerobic ground waters. Degradation of TCE was established from the field data. The purpose of this paper is to present estimates of averaged concentrations, mass flux and degradation rate constants.