高浓度含盐农药生产废水预处理试验研究  

Pretreatment test of high concentration salt pesticide wastewater

作　　者：王忠泉 王坤 秦树林 刘臣亮 张迎喜 Wang Zhongquan;Wang Kun;Qin Shulin;Liu Chenliang;Zhang Yingxi(Hangzhou Environmental Protection Research Institute of China Coal Technology&Engineering Group,Hangzhou 311201,China)

机构地区：[1]煤科集团杭州环保研究院有限公司,浙江杭州311201

出　　处：《工业水处理》2020年第10期86-89,共4页Industrial Water Treatment

基　　金：中国煤炭科工集团有限公司科技创新创业资金专项项目(2019-MS003)。

摘　　要：针对四川某农药生产废水含盐量高、有机物浓度高、生物毒性大及可生化性差等特点,采用多元微电解—类Fenton氧化—混凝沉淀工艺进行了强化预处理研究。通过正交试验对多元微电解的填料填充比、反应时间、pH、曝气量等参数进行了优化,并确定了类Fenton段H2O2的适宜投加量。结果表明,对于COD≤18000 mg/L、电导率≤78000μS/cm的进水,在优化的工艺条件下经预处理后,COD和SS去除率分别达到62.6%、65%,为后续生化处理提供了良好的进水水质。In view of the characteristics of a pesticide production wastewater in Sichuan with high salt content,high organic matter concentration,high biological toxicity and poor biodegradability,the process of multi-element micro-electrolysis-Fenton-like oxidation-coagulation precipitation was used to strengthen the pretreatment of the wastewa-ter.Through orthogonal experiment,the parameters of multi-element micro-electrolysis,such as filling ratio,reaction time,pH and aeration rate were optimized,and the appropriate dosage of H2O2 in Fenton-like section was determined.The results showed that for the influent with COD≤18000 mg/L and conductivity≤78000μS/cm,the removal rates of COD and SS were 62.6%and 65%respectively,after pretreatment under the optimized process conditions,which provided good influent water quality for subsequent biochemical treatment.

关 键 词：高浓度农药生产废水 多元微电解 类FENTON氧化 混凝沉淀 

分 类 号：X703[环境科学与工程—环境工程]