Anaerobic Biodegradation of Tetrachloroethylene with Acetic Acid as Cometabolism Substrate under Anaerobic Condition  

作　　者：LI Ye LIU Fei CHEN Honghan SHI Jinhua WANG Yufan 

机构地区：[1]School of Geoscience and Space Science, Peking University, Beijing 100871, China [2]China University of Geosciences, Beijing Key Laboratory of Water Resources and Environmental Engineering, Beijing 100083, China

出　　处：《Acta Geologica Sinica(English Edition)》2008年第4期911-916,共6页地质学报（英文版）

摘　　要：A series of batch-type experiments with acetate acid as the primary substrate were performed using enrichment cultures developed from the anaerobic sludge to investigate the effect of acetate acid on tetrachloroethylene （PCE） biodegradation. Experimental results indicated that acetate acid was an efficient electron donor in affecting the biotransformability of PCE. Trichloroethylene （TCE） was the primary dehalogenation product, and small amounts of dichloroethylenes （DCEs） were also detected. No significant further DCEs degradation was detected. PCE degradation rate in the experiment was 36.6 times faster than background rate in natural groundwater.A series of batch-type experiments with acetate acid as the primary substrate were performed using enrichment cultures developed from the anaerobic sludge to investigate the effect of acetate acid on tetrachloroethylene （PCE） biodegradation. Experimental results indicated that acetate acid was an efficient electron donor in affecting the biotransformability of PCE. Trichloroethylene （TCE） was the primary dehalogenation product, and small amounts of dichloroethylenes （DCEs） were also detected. No significant further DCEs degradation was detected. PCE degradation rate in the experiment was 36.6 times faster than background rate in natural groundwater.

关 键 词：BIODEGRADATION co-metabolism substrate TETRACHLOROETHYLENE 

分 类 号：P641[天文地球—地质矿产勘探]