A review:Advances in microbial remediation of trichloroethylene (TCE)  

作　　者：Prabhakar Pant Sudhakar Pant 

机构地区：[1]Applied Research Center,Florida International University [2]Department of Biology,St. Xavier's College

出　　处：《Journal of Environmental Sciences》2010年第1期116-126,共11页环境科学学报（英文版）

基　　金：support of the experimental tasks for the Savannah River Operations Office under grant No.DE-RP0902SR22229

摘　　要：Research works in the recent past have revealed three major biodegradation processes leading to the degradation of trichloroethylene. Reductive dechlorination is an anaerobic process in which chlorinated ethenes are used as electron acceptors. On the other hand, cometabolism requires oxygen for enzymatic degradation of chlorinated ethenes, which however yields no benefit for the bacteria involved. The third process is direct oxidation under aerobic conditions whereby chlorinated ethenes are directly used as electron donors by microorganisms. This review presented the current research trend in understanding biodegradation mechanisms with regard to their field applications. All the techniques used are evaluated, with the focus being on various factors that influence the process and the outcome.Research works in the recent past have revealed three major biodegradation processes leading to the degradation of trichloroethylene. Reductive dechlorination is an anaerobic process in which chlorinated ethenes are used as electron acceptors. On the other hand, cometabolism requires oxygen for enzymatic degradation of chlorinated ethenes, which however yields no benefit for the bacteria involved. The third process is direct oxidation under aerobic conditions whereby chlorinated ethenes are directly used as electron donors by microorganisms. This review presented the current research trend in understanding biodegradation mechanisms with regard to their field applications. All the techniques used are evaluated, with the focus being on various factors that influence the process and the outcome.

关 键 词：BIODEGRADATION TRICHLOROETHYLENE reductive dechlorination COMETABOLISM direct oxidation 

分 类 号：X50[环境科学与工程—环境工程]