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

Jiaxiu Song; Wenbing Wang; Rongjie Li; Jun Zhu; Yongming Zhang; Rui Liu; Bruce Rittmann

doi:10.1007/s10532-016-9755-8

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

Jiaxiu Song, Wenbing Wang, Rongjie Li, Jun Zhu, Yongming Zhang, Rui Liu, Bruce Rittmann

Research output: Contribution to journal › Article › peer-review

9 Scopus citations

Abstract

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 (μ_max) increased by 9 % after TCP photolysis, and the half-maximum-rate concentration (K_S) 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.

Original language	English (US)
Pages (from-to)	59-67
Number of pages	9
Journal	Biodegradation
Volume	27
Issue number	1
DOIs	https://doi.org/10.1007/s10532-016-9755-8
State	Published - Feb 1 2016

Keywords

2,4,6-trichlorophenol
Biodegradation
Kinetics
Phenol
Photolysis

ASJC Scopus subject areas

Environmental Engineering
Microbiology
Bioengineering
Environmental Chemistry
Pollution

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

abstract = "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.",

keywords = "2,4,6-trichlorophenol, Biodegradation, Kinetics, Phenol, Photolysis",

author = "Jiaxiu Song and Wenbing Wang and Rongjie Li and Jun Zhu and Yongming Zhang and Rui Liu and Bruce Rittmann",

note = "Funding Information: The authors acknowledge the financial support by the National Natural Science Foundation of China (50978164, 51208302); National High Technology Research and Development Program 863(2013AA06A305); Shanghai Gaofeng & Gaoyuan Project for University Academic Program Development; and the United States National Science Foundation (0651794). Publisher Copyright: {\textcopyright} 2016, Springer Science+Business Media Dordrecht.",

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doi = "10.1007/s10532-016-9755-8",

language = "English (US)",

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T1 - UV photolysis for enhanced phenol biodegradation in the presence of 2,4,6-trichlorophenol (TCP)

AU - Song, Jiaxiu

AU - Wang, Wenbing

AU - Li, Rongjie

AU - Zhu, Jun

AU - Zhang, Yongming

AU - Liu, Rui

AU - Rittmann, Bruce

N1 - Funding Information: The authors acknowledge the financial support by the National Natural Science Foundation of China (50978164, 51208302); National High Technology Research and Development Program 863(2013AA06A305); Shanghai Gaofeng & Gaoyuan Project for University Academic Program Development; and the United States National Science Foundation (0651794). Publisher Copyright: © 2016, Springer Science+Business Media Dordrecht.

PY - 2016/2/1

Y1 - 2016/2/1

N2 - 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.

AB - 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.

KW - 2,4,6-trichlorophenol

KW - Biodegradation

KW - Kinetics

KW - Phenol

KW - Photolysis

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

Abstract

Keywords

ASJC Scopus subject areas

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