Complete biotransformation of 1,1,1-trichloroethane to chloroethane by methanogens

被引：0

作者：

deBest, JH

Weijling, A

Jongema, H

Hage, A

Doddema, H

Harder, W

Janssen, DB

机构：

来源：

IN SITU AND ON-SITE BIOREMEDIATION, VOL 3 | 1997年 / 4(3)卷 / 03期

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D O I：

暂无

中图分类号：

Q81 [生物工程学（生物技术）]; Q93 [微生物学];

学科分类号：

071005 ; 0836 ; 090102 ; 100705 ;

摘要：

1,1,1-Trichloroethane (10 mu M) was completely transformed to chloroethane by a methanogenic mixed population in an anaerobic packed-bed reactor. Acetate and methanol served as electron donors. Transformation of TCA by methanogenic bacteria in the reactor was a cometabolic fortuitous reaction and only occurred in the presence of a suitable substrate. The transformation products formed depended on the substrate concentration. At substrate concentrations lower than 2.17 mM, beside chloroethane 1,1-dichloroethane was found as a transformation product. Both sulfate and nitrate inhibited TCA transformation. This inhibition was a result of competition for substrate between the TCA transforming methanogenic bacteria and either sulfate reducing or nitrate reducing bacteria.

引用

页码：3 / 8

页数：6