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Received: 2004-10-15

Revision Accepted: 2005-01-27

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Journal of Zhejiang University SCIENCE B 2005 Vol.6 No.5 P.319~323


Ozonation with ultrasonic enhancement of p-nitrophenol wastewater

Author(s):  XU Xian-wen, 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:  Ozonolysis, Sonolysis, Synergetic effect, p-nitrophenol degradation

XU Xian-wen, SHI Hui-xiang, WANG Da-hui. Ozonation with ultrasonic enhancement of p-nitrophenol wastewater[J]. Journal of Zhejiang University Science B, 2005, 6(5): 319~323.

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T1 - Ozonation with ultrasonic enhancement of p-nitrophenol wastewater
A1 - XU Xian-wen
A1 - SHI Hui-xiang
A1 - WANG Da-hui
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synergetic effects for p-nitrophenol degradation were observed in the ozonation with ultrasonic enhancement. The enhancements of removal rate for p-nitrophenol and TOC were around 116% and 294% respectively in comparison with the individual ultrasound and ozonation systems. The synergetic phenomenon is attributed to two physicochemical mechanisms: (1) Ultrasound decomposes ozone causing augmentation of the activity of free radicals; (2) Ultrasonic wave increased the concentration of O3 in solution because of ultrasonic dispersion.

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


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