EFFECTS OF IN-SITU BIOREMEDIATION WITH GROUNDWATER CIRCULATION SYSTEM ON GROUNDWATER REMEDIATION OF CHLORINATED ETHENES

Abstract

In order to evaluate effects of in-site bioremediation with groundwater circulation system on groundwater remediation of chlorinated ethenes, a numerical simulation of advective-dispersive multisolute transport was conducted at a contaminated site. First order rate constants of all chlorinated ethenes were calculated by using field monitoring data. The results showed that the first order rate constants were larger than those under natural aquifer conditions by more than a few orders. This finding provides evidence that this technology is very useful for accelerating the reductive dechlorination of chlorinated ethenes in an aquifer.