UV photolysis for enhanced phenol biodegradation in the presence of 2,4,6-trichlorophenol (TCP)

被引：0
|
作者：
Jiaxiu Song
Wenbing Wang
Rongjie Li
Jun Zhu
Yongming Zhang
Rui Liu
Bruce E. Rittmann
机构：
[1] Shanghai Normal University,Department of Environmental Science and Engineering, College of Life and Environmental Science
[2] Yangtze Delta Region Institute of Tsinghua University,Zhejiang Provincial Key Laboratory of Water Science and Technology, Department of Environmental Technology and Ecology
[3] Arizona State University,Swette Center for Environmental Biotechnology, Biodesign Institute
来源：
Biodegradation | 2016年 / 27卷
关键词：
2,4,6-trichlorophenol; Biodegradation; Kinetics; Phenol; Photolysis;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
A bacterial strain isolated from activated sludge and identified as Bacillus amyloliquefaciens could biodegrade phenol, but 2,4,6-trichlorophenol (TCP) inhibited phenol biodegradation and biomass growth. UV photolysis converted TCP into dichlorocatechol, monochlorophenol, and dichlorophenol, and this relieved inhibition by TCP. Phenol-removal and biomass-growth rates were significantly accelerated after UV photolysis: the monod maximum specific growth rate (μmax) increased by 9 % after TCP photolysis, and the half-maximum-rate concentration (KS) decreased by 36 %. Thus, the major benefit of UV photolysis in this case was to transform TCP into a set of much-less-inhibitory products.
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页码：59 / 67
页数：8
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