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.

Original languageEnglish (US)
Pages (from-to)59-67
Number of pages9
JournalBiodegradation
Volume27
Issue number1
DOIs
StatePublished - Feb 1 2016

Fingerprint

Photolysis
photolysis
Phenol
Biodegradation
Phenols
phenol
biodegradation
Biomass
Growth
biomass
Bacilli
activated sludge
Sewage
transform
2,4,6-trichlorophenol

Keywords

  • 2,4,6-trichlorophenol
  • Biodegradation
  • Kinetics
  • Phenol
  • Photolysis

ASJC Scopus subject areas

  • Environmental Engineering
  • Pollution
  • Environmental Chemistry
  • Microbiology
  • Bioengineering

Cite this

UV photolysis for enhanced phenol biodegradation in the presence of 2,4,6-trichlorophenol (TCP). / Song, Jiaxiu; Wang, Wenbing; Li, Rongjie; Zhu, Jun; Zhang, Yongming; Liu, Rui; Rittmann, Bruce.

In: Biodegradation, Vol. 27, No. 1, 01.02.2016, p. 59-67.

Research output: Contribution to journalArticle

Song, Jiaxiu ; Wang, Wenbing ; Li, Rongjie ; Zhu, Jun ; Zhang, Yongming ; Liu, Rui ; Rittmann, Bruce. / UV photolysis for enhanced phenol biodegradation in the presence of 2,4,6-trichlorophenol (TCP). In: Biodegradation. 2016 ; Vol. 27, No. 1. pp. 59-67.
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AU - Rittmann, Bruce

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