复合混凝剂处理垃圾填埋场渗滤液的研究  

Study on Treatment of Landfill Leachate With PFC- PDMDAAC

作　　者：徐速标[1] 余文腾 

机构地区：[1]韩山师范学院化学系,广东潮州521041 [2]广东省潮州市饶平县环境监测站,广东潮州521041

出　　处：《当代化工》2010年第4期386-388,共3页Contemporary Chemical Industry

基　　金：广东省潮州市科技局项目(2008S20)

摘　　要：针对垃圾渗滤液的高浓度、难降解、具有生物毒性的特点,采用混凝沉降法对其进行处理,以处理出水的CODcr为处理程度的表征指标。通过正交实验,确定最佳复合混凝剂的试剂用量,比较不同反应条件对CODcr去除率的影响,优化操作条件。实验结果表明,最佳复合混凝剂:1 250 mg/LPAC+1 500 mg/LPFS+50 mg/L PAM;最佳条件:pH=7.0,搅拌时间为15 min,沉降时间为20 min;CODcr去除率达到66.9%。Aiming at the landfill leachate with high concentration,refractory and biotoxicity,coagulation and sedimentation were used to treat it,taking liquid CODCr as index.According to orthogonal experiment,suitable dosage of PFC-PDMDAAC was determined.Influence of different reaction conditions on the CODCr removal rate was discussed,operating conditions were optimized.The experimental results show that the best dosage of PFC-PDMDAAC is 1 250 mg/L PAC and 1 500 mg/L PFS and 50 mg/L PAM,the best conditions are as follows：pH is 7.0,the stirring time is 15 min,the settling time is 20 min,underabove conditions,the CODCrremoval rate can reach 66.9%.

关 键 词：垃圾渗滤液 复合混凝剂 CODCR去除率 混凝沉降法 

分 类 号：X703[环境科学与工程—环境工程]