Record Display for the EPA National Library Catalog


Main Title Field-Derived Transformation Rates for Modeling Natural Bioattenuation of Trichloroethene and Its Degradation Products.
Author Weaver, J. W. ; Wilson, J. T. ; Kampbell, D. H. ; Randolph, M. E. ;
CORP Author National Risk Management Research Lab., Ada, OK. Subsurfaces Protection and Remediation Div.
Publisher 1996
Year Published 1996
Report Number EPA/600/A-95/142;
Stock Number PB96-139092
Additional Subjects Water pollution control ; Chlorine organic compounds ; Solvents ; Biodegradation ; Plumes ; Reaction kinetics ; Models ; Transport theory ; Field tests ; Chemical reactions ; Chemical analysis ; Site investigations ; Bioremediation ; TCE(Trichloroethene)
Library Call Number Additional Info Location Last
NTIS  PB96-139092 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 14p
Subsurface contamination by trichloroethene (TCE) was detected at the St. Joseph, Michigan site in 1982. Investigation of the site revealed the presence of TCE degradation products, including three dichloroethene isomers, vinyl chloride and ethene. The plume was found to be depeleted of oxygen and methanogenic at certain depths. In August of 1994, water samples were tkaen from a barge situated about 100 m off-shore in Lake Michigan. Each round of samples were taken along transects that crossed the width of the plume; as determined in the field by gas chromatography. From the data set, the average concentration of each chemical and net apparent loss coefficients between appropriate pairs of transects were calculated. The loss rates were calculated from the solution of the one-dimensional advective-dispersive-reactive transport equation. The net apparent rate coefficients and a set of coupled reaction rate equations were used to extract the apparent loss coefficients from the field data.