Aerobic degradation of diethyl phthalate by Sphingomonas sp.

被引:73
作者
Fang, Herbert H. P. [1 ]
Liang, Dawei [1 ]
Zhang, Tong [1 ]
机构
[1] Univ Hong Kong, Dept Civil Engn, Environm Biotechnol Lab, Hong Kong, Hong Kong, Peoples R China
关键词
16S rDNA; degradation; diethyl phthalate; endocrine disruptor; Sphingomonas;
D O I
10.1016/j.biortech.2006.02.010
中图分类号
S2 [农业工程];
学科分类号
0828 ;
摘要
An aerobic diethyl phthalate (DEP) degrading bacterium, DEP-ADI, was isolated from activated sludge. Based on its 16S rDNA sequence, this isolate was identified belonging to Sphingomonas genus with 99% similarity to Sphingomonas sp. strain C28242 and 98% similarity to S. capsulate. The specific degradation rate of DEP was concentration dependent with a maximum of 14 mg-DEP/(L h). Results of degradation tests showed that DEP-ADI could also degrade monoethyl phthalate (MEP), dimethyl phthalate (DMP), dibutyl phthalate (DBP), and diethylhexyl phthalate (DEHP), but not phthalate and benzoate. (c) 2006 Elsevier Ltd. All rights reserved.
引用
收藏
页码:717 / 720
页数:4
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