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浙江大学学报(工学版)
J4  2011, Vol. 45 Issue (4): 770-774    DOI: 10.3785/j.issn.1008-973X.2011.04.030
化学工程     
微波强化臭氧氧化降解苯酚动力学研究
赵德明1,2, 张建庭2, 金宁人2, 徐新华1
1.浙江大学 环境与资源学院, 浙江 杭州 310027； 2.浙江工业大学 化学工程与材料学院,浙江 杭州 310032
Kinetics of phenol degradation in water using microwave/O3 system
ZHAO De-ming1,2, ZHANG Jian-ting2, JIN Ning-ren2, XU Xin-hua1
1. College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310027,China; 2. College of
Chemical Engineering and Materials, Zhejiang University of Technology, Hangzhou 310032, China
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摘要：

研究微波强化臭氧（MW/O3）系统下主要影响因素如臭氧投量、微波功率、pH值及温度等对苯酚降解效果和动力学的影响.结果表明：在单独的微波辐射下苯酚去除率很小,在复合氧化过程MW/O3工艺中有显著的提高,表明微波对臭氧氧化存在明显的强化作用；在单独微波辐照或者臭氧氧化工艺和MW/O3强化氧化系统中苯酚的降解均符合拟一级动力学关系,其中MW/O3氧化系统苯酚去除的速率常数增强因子可以达到3.6,降解机理类似臭氧氧化苯酚的降解过程,羟基自由基氧化机制为主.通过实验推导出简化的与pH值、臭氧投量、微波功率和反应温度等因素相关的苯酚降解动力学模型.
Abstract:

 The mainly influential factors on the removal rate and synergetic kinetics of phenol degradation in water by using the microwave enhanced ozonation (MW/O3) system were studied. Results showed that the removal rate of phenol degradation was lower under individual microwave ultrasonic radiation, while it was significantly enhanced in the combined MW/O3 system. There existed obviously enhanced effects in the MW/O3 process. In all cases, the degradation of phenol followed pseudo-first-order kinetics reaction, with the enhancement factor of the pseudo-first-order kinetics constant being around 3.6 in the combined MW/O3 system. The phenol degradation mechanism in MW/O3 system was greatly similar with that in ozonization oxidation process, and hydroxyl radicals oxidation was dominant. A simplified model for phenol degradation kinetics was derived by accounting for the contribution of pH value, ozone dose, microwave power and reaction temperature in the MW/O3 system.
出版日期: 2011-05-05
:  X 78  
基金资助:

国家自然科学基金资助项目（20877066）；中国博士后科学基金资助项目（20100471716）；浙江省自然科学基金资助项目（Y5100075）.
作者简介: 赵德明(1976—),男,山东泰安人,副教授,从事持久性污染物治理和有机合成的研究.Email:dmzhao@zjut.edu.cn
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引用本文:

赵德明, 张建庭, 金宁人, 徐新华. 微波强化臭氧氧化降解苯酚动力学研究[J]. J4, 2011, 45(4): 770-774.

ZHAO De-ming, ZHANG Jian-ting, JIN Ning-ren, XU Xin-hua. Kinetics of phenol degradation in water using microwave/O3 system. J4, 2011, 45(4): 770-774.

链接本文:

http://www.zjujournals.com/eng/CN/10.3785/j.issn.1008-973X.2011.04.030    或    http://www.zjujournals.com/eng/CN/Y2011/V45/I4/770

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