%0 Journal Article
%T Cometabolic microbial degradation of trichloroethylene in the presence of toluene
%A SUI Hong
%A LI Xin gang
%A XU Shi min
%A <br>SUI Hong
%A LI Xin gang
%A XU Shi min
%J 环境科学学报(英文版)
%D 2004
%I 
%X Trichloroethylene (TCE), a common groundwater pollutant, was cometabolized by microorganisms in the presence of toluene as a growth substrate. The effect of concentrations of toluene and TCE and temperature on biodegradation was discussed. Acclimated microorganisms degraded TCE after a lag period of 5 to 22 h depending on toluene concentrations. Approximately 60%, 90% and 64% of TCE were degraded at toluene to TCE concentration ratios of 23:1, 115:1 and 230:1, respectively. At a TCE concentration of 1.46 microg/ml, 80% of TCE and 98.4% of toluene were removed. But less degradation of TCE and toluene was observed when TCE concentration was above 48.8 microg/ml. The lag time of TCE decreased and the TCE biodegradation rates increased with the increase of temperature.
%K cometabolism
%K microbial degradation
%K toluene
%K trichloroethylene<br>微生物
%K 三氯乙烯
%K 甲苯
%K 水处理工艺
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=3FF3ABA7486768130C3FF830376F43B398E0C97F0FF2DD53&cid=A7CA601309F5FED03C078BCE383971DC&jid=6CB1530875F53489BF1E81BD87B7F5E6&aid=22844C05A578A2BFB87BB13CB9787584&yid=D0E58B75BFD8E51C&vid=7801E6FC5AE9020C&iid=38B194292C032A66&sid=036D726259190A01&eid=F176272DD933A0BB&journal_id=1001-0742&journal_name=Journalofenvironmentalsciences(China)&referenced_num=1&reference_num=9