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Influence of chemical oxidant on degradation of benzo[a]pyrene metabolites by the bacterium-Zoogloea sp.

Zang, Shuyan, Li, Peijun, Lian, Bin, Stagnitti, Frank, Stagnitti, Monique R., Chen, Jing and Xie, Lijing 2008, Influence of chemical oxidant on degradation of benzo[a]pyrene metabolites by the bacterium-Zoogloea sp., Environmental engineering science, vol. 25, no. 2, pp. 247-253, doi: 10.1089/ees.2006.0209.

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Title Influence of chemical oxidant on degradation of benzo[a]pyrene metabolites by the bacterium-Zoogloea sp.
Formatted title Influence of chemical oxidant on degradation of benzo[a]pyrene metabolites by the bacterium-zoogloea sp.
Author(s) Zang, Shuyan
Li, Peijun
Lian, Bin
Stagnitti, Frank
Stagnitti, Monique R.
Chen, Jing
Xie, Lijing
Journal name Environmental engineering science
Volume number 25
Issue number 2
Start page 247
End page 253
Publisher Mary Ann Liebert, Inc. Publishers
Place of publication New Rochelle, N.Y.
Publication date 2008-03-05
ISSN 1092-8758
1557-9018
Keyword(s) degradation
metabolites
cis-BP4,5-dihydrodiol
cis-BP7,8-dihydrodiol
bacterium
Zoogloea sp.
chemical oxidant
Summary It is neither comprehensive nor appropriate that the bioremediation of a benzo[a]pyrene (BaP)-contaminated environment be assessed only by its high degradation extent because its metabolites' chemical structures are similar to the parent compound and maybe equally toxic. Therefore, further degradation of BaP metabolites is significant. Three methods, combining the Zoogloea sp. with potassium permanganate, combining the Zoogloea sp. with H2O2, Zoogloea sp. alone, were investigated to degrade cis-BP4,5-dihydrodiol and cis-BP7,8-dihydrodiol, which are the metabolites of BaP formed by bacterium-Zoogloea sp. Optimum parameters of degradation in the best method are that: of the three methods, coupling the Zoogloea sp. and KMnO4 is the best; compared with cis-BP7,8-dihydrodiol, cis-BP4,5-dihydrodiol is the more liable to be accumulated in pure cultures; the degradation effect of the two metabolites is optimal when the initial concentration of KMnO4 in the cultures is 0.05%; initial concentration of cis-BP4,5-dihydrodiol and cis-BP7,8-dihydrodiol is 4 mg L−1, 8 mg L−1, respectively; cometabolic substance is salicylic acid or sodium succinate. The degradation extent of cis-BP4,5-dihydrodiol and cis-BP7,8-dihydrodiol using combining the Zoogloea sp. and KMnO4 reach 76.1% and 85.9% after 12 days of cultivation, respectively, which were more than twice compared with conventional method.
Language eng
DOI 10.1089/ees.2006.0209
Field of Research 100203 Bioremediation
HERDC Research category C1 Refereed article in a scholarly journal
Copyright notice ©2008, Mary Ann Liebert Publishers
Free to Read? Yes
Persistent URL http://hdl.handle.net/10536/DRO/DU:30017180

Document type: Journal Article
Collections: School of Life and Environmental Sciences
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Every reasonable effort has been made to ensure that permission has been obtained for items included in DRO. If you believe that your rights have been infringed by this repository, please contact drosupport@deakin.edu.au.