DEGRADATION OF CHLORINATED ETHENES AT A GROUND WATER REMEDIATION SITE USING IN-SITU BIOREMEDIATION

摘要

The aim of this paper is to evaluate the results of a field trial on groundwater remediation by in-situ bioremediation using reductive dechlorination of chlorinated ethenes at a site contaminated with tetrachloroethylene. Daughter products such as dichloroethylenes and ethene were observed which increased in the monitoring well during the field test in response to the increased reductive conditions of the aquifer. Moreover, it was shown that the first order rate constants of all chlorinated ethenes were several orders higher than those under natural aquifer conditions. These findings revealed that this technique can be used to accelerate reductive dechlorination of chlorinated ethenes in an aquifer.