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On Treatment of Landfill Leachate by Microwave/Fenton Process
Author(s): PAN Yun-xia1, ZHANG Da-ming1, LIU Lan2 1.College of Engineering and Technology, Southwest University, Chongqing 400716, China, 2.Planning Bureau of Hechuan District, Chongqing 401520, China
Pages: 157-
161
Year: 2013
Issue:
4
Journal: Journal of Southwest University(Natural Science Edition)
Keyword: 垃圾渗滤液; 微波/Fenton联用; UV254/UV254o; 难降解有机物; 反应机理;
Abstract: 采用微波/Fenton联用处理垃圾渗滤液,考察Fenton试剂用量、微波功率和pH值对垃圾渗滤液UV254/UV254o的影响.结果表明,H2O2浓度为855mmol/L,Fe2+浓度为15mmol/L,微波功率为480W,pH值为2.5,微波作用时间为120s时,微波/Fenton联用对垃圾渗滤液中难降解有机物有较好的去除效果.同时,论文还对微波/Fenton联用处理垃圾渗滤液的作用机理进行了探讨.结果表明,温度对微波/Fenton联用处理垃圾渗滤液有明显影响,升高温度能增加Fenton试剂对有机物的去除效果;不同的热效应产生方式对垃圾渗滤液中有机物的去除效果不同,单独微波作用对垃圾渗滤液有机物去除率最低,微波/Fenton联用对垃圾渗滤液中有机物的去除率和去除速率高于Fenton反应,在微波/Fenton反应中,不仅微波的热效应对Fenton试剂有强化作用,而且,微波的电磁效应也发挥了作用.
Citations
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