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CLC number: TQ150.9; X783

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Received: 2005-01-21

Revision Accepted: 2005-02-21

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Journal of Zhejiang University SCIENCE B 2005 Vol.6 No.6 P.553~558

http://doi.org/10.1631/jzus.2005.B0553


Study on US/O3 mechanism in p-chlorophenol decomposition


Author(s):  XU Xian-wen, XU Xin-hua, SHI Hui-xiang, WANG Da-hui

Affiliation(s):  Department of Environmental Science and Engineering, Zhejiang University, Hangzhou 310027, China

Corresponding email(s):   xxw118@zju.edu.cn

Key Words:  US/O3, p-chlorophenol, Synergetic effect, Decomposition mechanism


XU Xian-wen, XU Xin-hua, SHI Hui-xiang, WANG Da-hui. Study on US/O3 mechanism in p-chlorophenol decomposition[J]. Journal of Zhejiang University Science B, 2005, 6(6): 553~558.

@article{title="Study on US/O3 mechanism in p-chlorophenol decomposition",
author="XU Xian-wen, XU Xin-hua, SHI Hui-xiang, WANG Da-hui",
journal="Journal of Zhejiang University Science B",
volume="6",
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pages="553~558",
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publisher="Zhejiang University Press & Springer",
doi="10.1631/jzus.2005.B0553"
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%A XU Xin-hua
%A SHI Hui-xiang
%A WANG Da-hui
%J Journal of Zhejiang University SCIENCE B
%V 6
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%P 553~558
%@ 1673-1581
%D 2005
%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.2005.B0553

TY - JOUR
T1 - Study on US/O3 mechanism in p-chlorophenol decomposition
A1 - XU Xian-wen
A1 - XU Xin-hua
A1 - SHI Hui-xiang
A1 - WANG Da-hui
J0 - Journal of Zhejiang University Science B
VL - 6
IS - 6
SP - 553
EP - 558
%@ 1673-1581
Y1 - 2005
PB - Zhejiang University Press & Springer
ER -
DOI - 10.1631/jzus.2005.B0553


Abstract: 
Study on the effects of sonolysis, ozonolysis and US/O3 system on the decomposition of p-chlorophenol in aqueous solutions indicated that in the cases of US/O3 system, individual ozonolysis and sonolysis, the decomposition rate of p-chlorophenol reached 78.78%, 56.20%, 2.79% after a 16-min reaction while its CODcr (chemical oxygen demand) removal rate was 97.02%, 62.17%, 3.67% after a 120-min reaction. The decomposition reaction of p-chlorophenol follows pseudo-first-order kinetics. The enhancement factors of p-chlorophenol and its CODcr under US/O3 system reached 63% and 237% respectively. The main intermediates during the decomposition include catechol, hydroquinone, p-benzoquinone, phenol, fumaric acid, maleic acid, oxalic acid and formic acid. The decomposition mechanism of p-chlorophenol was also discussed.

Darkslateblue:Affiliate; Royal Blue:Author; Turquoise:Article

Reference

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