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 (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.
authors.affiliation: Department of Environmental Science and Engineering, College of Life and Environmental Science, Shanghai Normal University, Shanghai, 200234, People's Republic of China.
authors.forename: Jiaxiu
authors.initials: J
authors.lastname: Song
authors.affiliation: Department of Environmental Science and Engineering, College of Life and Environmental Science, Shanghai Normal University, Shanghai, 200234, People's Republic of China.
authors.forename: Wenbing
authors.initials: W
authors.lastname: Wang
authors.affiliation: Department of Environmental Science and Engineering, College of Life and Environmental Science, Shanghai Normal University, Shanghai, 200234, People's Republic of China.
authors.forename: Rongjie
authors.initials: R
authors.lastname: Li
authors.affiliation: Department of Environmental Science and Engineering, College of Life and Environmental Science, Shanghai Normal University, Shanghai, 200234, People's Republic of China.
authors.forename: Jun
authors.initials: J
authors.lastname: Zhu
authors.affiliation: Department of Environmental Science and Engineering, College of Life and Environmental Science, Shanghai Normal University, Shanghai, 200234, People's Republic of China. zhym@shnu.edu.cn.
authors.forename: Yongming
authors.initials: Y
authors.lastname: Zhang
authors.affiliation: Zhejiang Provincial Key Laboratory of Water Science and Technology, Department of Environmental Technology and Ecology, Yangtze Delta Region Institute of Tsinghua University, Jiaxing, 314006, Zhejiang, People's Republic of China.
authors.forename: Rui
authors.initials: R
authors.lastname: Liu
authors.affiliation: Swette Center for Environmental Biotechnology, Biodesign Institute, Arizona State University, Tempe, AZ, 85287-5701, USA.
authors.forename: Bruce E
authors.initials: BE
authors.lastname: Rittmann
mesh_terms: D001407:Bacillus / Q000235:genetics / Q000378:metabolism; D001673:Biodegradation, Environmental / Q000528:radiation effects*; D018533:Biomass; D002733:Chlorophenols / Q000737:chemistry*; D003470:Culture Media; D007700:Kinetics; D010636:Phenols / Q000378:metabolism* / Q000528:radiation effects*; D010782:Photolysis / Q000528:radiation effects*; D012722:Sewage / Q000382:microbiology; D014466:Ultraviolet Rays
chemical_list: D002733:Chlorophenols; D003470:Culture Media; D010636:Phenols; D012722:Sewage; C024564:2,4,6-trichlorophenol
keywords: 2,4,6-trichlorophenol; Biodegradation; Kinetics; Phenol; Photolysis