WAO法处理有机废水中进水浓度的影响  

Influence of Influent Concentration on Organic Wastewater Treatment With WAO Method

作　　者：许越[1] 张小强[1] 张永利[1] 

机构地区：[1]韩山师范学院化学系,广东潮州521041

出　　处：《当代化工》2012年第4期336-338,共3页Contemporary Chemical Industry

基　　金：2009年广东省自然科学基金项目(9452104101003815);2011年广东省高等学校人才引进专项资金

摘　　要：以色度是125万倍的有机废水为处理目标,在反应温度180℃、氧分压3.0 MPa的条件下,分别以1 000、2 500、4 000、5 500、7 000 mg/L的进水浓度,用湿式氧化法对其进行处理。结果表明:当进水浓度为4 000 mg/L时,COD去除率最佳,随着进水浓度的上升或下降,COD去除率向两端递减;脱色率随进水浓度的升高而升高、随反应时间的增加而升高;浊度去除率随进水浓度的升高而降低,随时间的增加而升高;进水浓度越高,其pH值也就越高,随反应时间的增加,pH先升高后降低。Taking the organic wastewater with the chroma 1.25×106 times as the treatment target,under reaction temperature of 180 ℃ and oxygen partial pressure of 3.0 MPa,wastewater（influent concentration：1 000,2 500,4 000,5 500 or 7 000 mg/L）was respectively treated with the wet oxidation method.The results show that： when the influent concentration of 4 000 mg/L,the COD removal rate is highest;with increasing or decreasing of the influent concentration,COD removal rate decreases to both ends;decolorization rate rises with increasing of influent concentration and reaction time;turbidity removal efficiency decreases with increasing of influent concentration,but it increases with increasing of treatment time;The higher the influent concentration,the higher the pH is,with increasing of reaction time,pH first increases and then decreases.

关 键 词：湿式氧化 有机废水 进水浓度 

分 类 号：X703[环境科学与工程—环境工程]