Ultrasonic irradiation-induced degradation of low-concentration bisphenol A in aqueous solution

被引：65
作者：
Guo, Zhaobing [1 ]
Feng, Ruo [2 ]
机构：
[1] Nanjing Univ Informat Sci & Technol, Sch Environm Sci & Engn, Nanjing 210044, Peoples R China
[2] Nanjing Univ, Inst Acoust, Nanjing 210093, Peoples R China
来源：
JOURNAL OF HAZARDOUS MATERIALS | 2009年 / 163卷 / 2-3期
关键词：
Bisphenol A; Ultrasonic degradation; Degradation pathway; INDUCED OXIDATION; WATER; PARAMETERS; KINETICS; CAVITATION; SONOLYSIS;
D O I：
10.1016/j.jhazmat.2008.07.038
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
The treatment of bisphenol A (BPA)-contaminated water has attracted great interest recently. In this contribution, ultrasound (US) was applied to remove low-concentration BPA in aqueous solution at the frequency of 20 kHz, and the effects of ultrasonic intensity and ozone on BPA removal were evaluated for the first time. Considering the coexistence of halomethanes and BPA in chlorinated drinking water, BPA was degraded under US in the presence of CCl4, In addition, the main intermediates resulting from BPA ultrasonic degradation were identified by gas chromatography-mass spectrometry. On the basis of these studies, (OH)-O-center dot radical induced oxidation was identified as the major destruction pathway during BPA sonolysis. (C) 2008 Elsevier B.V. All rights reserved.
引用
收藏
页码：855 / 860
页数：6
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