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等离子体降解水相中有机污染物的机理研究
引用本文:朱承驻,董文博,潘循皙,张仁熙,侯惠奇.等离子体降解水相中有机污染物的机理研究[J].环境科学学报,2002,22(4):428-433.
作者姓名:朱承驻  董文博  潘循皙  张仁熙  侯惠奇
作者单位:复旦大学环境科学研究所,上海,200433
摘    要:研究了等离子体在内电极通氧条件下降解水相中甲基紫的机理。研究表明,甲基紫的降解率与等离子体的电压和处理时间呈线性关系、与甲基紫溶液的浓度呈指数关系,溶液的pH随着处理时间的增加而下降:100mg/L甲基紫经等离子体外理3s,其降解率可达95%以上,COD下降50%左右;在等离子体条件下,甲基紫溶液的降解是氧原子、电子、活性自由基和离子等共同的作用的结果。

关 键 词:有机污染物  机理研究  等离子体  甲基紫水溶液  降解  COD  废水处理
文章编号:0253-2468(2002)-04-0428-06
收稿时间:8/8/2001 12:00:00 AM
修稿时间:2001年8月8日

Degradation mechanism of organic pollutant in water by plasma
ZHU Chengzhu,DONG Wenbo,PAN Xunxi,ZHANG Renxi and HOU Huiqi.Degradation mechanism of organic pollutant in water by plasma[J].Acta Scientiae Circumstantiae,2002,22(4):428-433.
Authors:ZHU Chengzhu  DONG Wenbo  PAN Xunxi  ZHANG Renxi and HOU Huiqi
Institution:Institute of Environmental Science. Fudan University, Shanghai 200433,,Institute of Environmental Science. Fudan University, Shanghai 200433,,Institute of Environmental Science. Fudan University, Shanghai 200433,,Institute of Environmental Science. Fudan University, Shanghai 200433, and Institute of Environmental Science. Fudan University, Shanghai 200433,
Abstract:The degradation mechanism of methyl violet in water with O-2 was studied using plasma method.The degradation efficiency of aqueous methyl violet showed linearity relation with both plasma voltage and discharge time, while it had exponential relation with concentration of aqueous methyl violet. The pH of aqueous methyl violet declined along treating time increasing. After discharge for 3*!s, the degradation efficiency of 100*!mg/L of aqueous methyl violet reached up to 95%, COD reduced 50%. At the point of the plasma, the degradation of methyl violet in water with O-2 is a collective action of oxygen atom, electron and radical.
Keywords:plasma  O-2  methyl violet aqueous  degradation  COD
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