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Main Title Effects of Three Concentrations of Mixed Fatty Acids on Dechlorination of Tetrachloroethene in Aquifer Microcosms.
Author Gibson, S. A. ; Roberson, D. S. ; Russell, H. H. ; Sewell., G. W. ;
CORP Author Robert S. Kerr Environmental Research Lab., Ada, OK. ;ManTech Environmental Technology, Inc., Ada, OK.
Publisher c1994
Year Published 1994
Report Number EPA/600/J-94/171;
Stock Number PB94-162765
Additional Subjects Aquifiers ; Dechlorination ; Halohydrocarbons ; Fatty acids ; Biodegradation ; Reduction(Chemistry) ; Concentration(Composition) ; Reaction kinetics ; Anaerobic conditions ; Dehalogenation ; Organic solvents ; Ground water ; Aviation gasoline ; Chlorinated organic compounds ; Reprint ; Traverse City(Michigan) ; Chloroethenes ; In situ bioremediation ; PCE(Tetrachloroethene) ; TCE(Trichloroethene)
Library Call Number Additional Info Location Last
NTIS  PB94-162765 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 10p
Chloroethenes are among the most common organic contaminants of ground water. The biotransformation of these compounds by reductive dechlorination is a promising technology for in situ treatment. The effects of three concentrations of a fatty acids mixture on the reductive dehalogenation of tetrachloroethene (PCE) were studied in methanogenic microcosms. These microcosms were constructed with slurries of aquifer solids collected from an area impacted both by aviation gasoline and chlorinated ethenes at Traverse City, Michigan. PCE was not dechlorinated in microcosms without a fatty acid supplement. Although there were observed differences in the length of the lag time, the amount of ultimately dechlorinated PCE was similar. Of the fatty acids tested in the mixture, butyrate oxidation appeared to be the most probable link to PCE dechlorination. (Copyright (c) Pergamon Press 1994.)