光助fenton试剂法氧化处理煤油废水溶液.pdf

中国环境科学 2002,22(5) 460~463 China Environmental Science 光助Fenton 试剂法氧化处理煤油废水溶液 1 2 1 1* 1 钟 萍 ,杨 曦 ,赵贵来 ,孔令仁 ,刘光明 (1.南京大学环境学院,污染控制与资源化研究国家重点实验室, 江苏 南京 210093 2.清华大学环境科学与工程系,北京 100084) 2+ 摘要 以含煤油水溶液为研究对象,采用光助 Fenton 试剂(photo-Fenton)深度氧化技术进行降解处理.研究结果表明,在[Fe ]=0.3mmol/L, [H O ]=6mmol/L,pH=3 的弱酸体系下,油类去除率达75%.光强能直接提高处理效率.通过以水杨酸作为探针性物质推算出了由photo-Fenton 2 2 -14 化学体系产生的羟基自由基稳态浓度数量级为10 mol/L,揭示了煤油的深度光氧化反应机理. 关键词 光助Fenton 试剂法 煤油 光氧化 羟基自由基 中图分类号 X703.1 文献标识码 A 文章编号 1000-6923(2002)05-0460-04 1 2 1 Photo-Fenton technique for oxidative treatment of kerosene wastewater. ZHONG Ping , YANG Xi , ZHAO Gui-lai , 1 1 KONG Ling-ren , LIU Guang-ming (1.State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210093, China 2.Department of Environmental Science and Engineering, Tsinghua University, Beijing 100084, China). China Environmental Science. 2002,22(5) 460~463 Abstract The treatment of kerosene wastewater (50mg/L) by photo-Fenton reagent of advanced oxidation process was preliminarily investigated. The optimal operating conditions in weak acid system were as [Fe2+]=0.3mmol/L, [H O ]= 2 2 6mmol/L and pH=3. Under these conditions, kerosene was degraded over 75%. Furthermore the degradation ability of Fenton reagent to the organic compounds can be enhanced by ultraviolet light.