PAC和PAM复合混凝剂对垃圾渗滤液预处理的研究  

Research on the pretreatment of landfill leachate using composite coagulant of polyaluminium chloride and polyacrylamide

作　　者：申丽芬 孙宝盛[1] 张燕[1] 

机构地区：[1]天津大学环境科学与工程学院,天津300072

出　　处：《工业水处理》2014年第2期59-61,共3页Industrial Water Treatment

摘　　要：以某高含盐垃圾渗滤液为研究对象,通过投加混凝剂聚合氯化铝(PAC)和助凝剂聚丙烯酰胺(PAM)对其进行混凝沉淀预处理。单因素试验和正交试验结果表明,最佳混凝条件为PAC投加量为1 050 mg/L,PAM投加量为0.8 mg/L,PAM的投加时间在距离PAC投加之后7 min。在上述最佳处理条件下,原水COD由4 876 mg/L降至2 436 mg/L,COD去除率达50.04%。Using landfill leachate containing high salinity as the research object, the composite coagulant consisting of polyaluminium chloride （PAC）and polyacrylamide （PAM） has been added, so as to carry out coagulation and sedi- mentation process for its pretreatment. The results from doing single factor tests and orthogonal experiments show that optimal coagulation conditions are as follows：PAC dosage is 1 050 mg/L,PAM dosage 0.8 mg/L,and PAM adding time seven minutes after the adding of polyaluminium chloride （PAC）. Under the above treatment conditions, the raw water COD reduces from 4 876 mg/L to 2 436 mg/L. The removing rate of COD is as hizh as 50.04%.

关 键 词：垃圾渗滤液 聚合氯化铝 聚丙烯酰胺 混凝沉淀 

分 类 号：X703.1[环境科学与工程—环境工程]