含酚废水湿式电化学氧化处理研究  

Study on Phenolic Wastewater Treatment by Wet Electrochemical Oxidation

作　　者：杨润昌[1] 周书天[1] 

机构地区：[1]湘潭大学化工学院,湖南湘潭411105

出　　处：《湘潭大学自然科学学报》2001年第3期55-58,共4页Natural Science Journal of Xiangtan University

摘　　要：湿式电化学氧　化是湿式空气氧化的改进方法，它用电化学氧化装置产生的ＨＣｌＯ和·ＯＨ代替空气中氧进行氧　化的方法．采用湿式电化学氧化法对苯酚模拟废水的处理进行研究，主要考虑了ｐＨ值、电流　密度、反应时间、温度、Ｈ２Ｏ２／苯酚比对处理效果的影响．实验结果表明　，在温度１１０～１６０　℃、ｐＨ　３～３．５、电流密度６～９　ｍＡ／ｃｍ２、Ｈ２Ｏ２／苯酚　质量比＞０．０６时，２００　ｍｇ／Ｌ的苯酚溶液经处理后，酚去除率＞９８％，ＣＯＤ去除率＞７０％．As a new improved method of WAO (wet a ir oxidation), wet electrochemical oxidation (WEO), uses HClO and ·OH generated by electrochemical system as the oxidizing agent instead of oxygen. This paper introduce the wet electrochemical oxidation treatment of phenolic so lution simulated wastewater. During the experiment, we study the effect of pH, H 2O2/phenl, electric current density, reaction time and temperature o n the removal rate of phenol and COD. The results show that if the temperature i s kept at 110～160 ℃, the electric current density at 6～9 mA/cm2, the pH at 3～3.5, the H2O2/phenol>0.06, the phenolic wastewater of 200 mg/L as initial concentration will get the removal above 98%, accompanied by the removal rate of COD over 70%.

关 键 词：湿式氧化 含酚废水 废水处理 电化学 

分 类 号：X783[环境科学与工程—环境工程]