Song Shuang, He Zhiqiao, Chen Jianmeng
College of Biological and Environmental Engineering, Zhejiang University of Technology, Hangzhou 310032, People's Republic of China.
Ultrason Sonochem. 2007 Jan;14(1):84-8. doi: 10.1016/j.ultsonch.2005.11.010. Epub 2006 Feb 7.
The influencing factors and mechanism of ultrasound (US)/ozone (O3) combination degradation of aniline in water were investigated. An increment of approximately 64% of aniline reduction and 110% of TOC reduction were observed with respect to the addition of the separated O3 and US systems, proving US/O3 technology had significant synergetic effects. Excellent removal performance was observed in the degradation with US/O3. With the initial concentration of aniline at 100 mg l(-1), the energy density of ultrasound at 0.1 W ml(-1) and the flow rate of ozone at 2 mg min(-1), the removal efficiency of aniline would be at least 82% and that of TOC would be at least 20% after reaction for 5 min. Major by-products included nitrobenzene, p-benzoquinone, p-aminophenol, carboxylic acid, etc.
研究了超声（US）/臭氧（O₃）联合降解水中苯胺的影响因素及作用机制。相对于单独的O₃和US系统，观察到苯胺去除率提高了约64%，总有机碳（TOC）去除率提高了110%，证明US/O₃技术具有显著的协同效应。在US/O₃降解过程中观察到了优异的去除性能。当苯胺初始浓度为100 mg l⁻¹、超声能量密度为0.1 W ml⁻¹、臭氧流速为2 mg min⁻¹时，反应5 min后苯胺去除率至少为82%，TOC去除率至少为20%。主要副产物包括硝基苯、对苯醌、对氨基酚、羧酸等。
