聚合氯化铝絮凝剂的性能研究生活污水中的应用  

STUDY ON THE PROPERTIES OF POLYALUMINIUM CHOLRIDE

作　　者：薛笋静[1] 张玮 杨小勇[1] 郦朝晖[1] 

机构地区：[1]煤炭科学研究总院杭州环保研究院,浙江杭州311201 [2]上海环境工程设计研究院有限公司,上海200071

出　　处：《能源环境保护》2012年第2期33-36,共4页Energy Environmental Protection

摘　　要：聚合氯化铝(PAC)是一种新型、高效的无机高分子絮凝剂,具有形成絮体速度快、矾花大、除浊效果好等优点。PAC对生活污水具有良好的去浊、除色效果。研究内容包括:最佳投药量、PH值影响和搅拌速度的影响以及高分子絮凝剂作用机理的研究,通过正交实验确定了pH值和聚合氯化铝投加量与CODcr、浊度去除率之间的关系。实验表明:PAC的最佳投药量为750mg/l,pH适宜范围在7.0-9.0之间;在最佳条件下,PAC对生活污水的浊度去除率为98.75%,CODcr的去除率为83.67%。Polyaluminium chloride is a new inorganic coagulant with high effect,PAC has the advantage of coagulant＇s fast sinking 、large flocs and effect in wastewater treatment.The PAC has the excellent turbidity reduction and so on for domestic sewage.The optimum dosages of these flocculants 、 the effect of the PH value 、the mixing speed and the temperature were studied in this paper.The effects of the composition between the inorganic polymer flocculants and the organic coagulation polymer flocculent were also discussed in the coagulation process.The experiment showed that The optimum dosages of the PAC is 750mg/l and the optimum range of PH is 7-9,under the optimum circumstance,the turbidity reducting rate of the PAC for domestic sewage reached on 98.75%,the CODcr reducting rate reached on 83.67%.

关 键 词：水处理 生活污水 絮凝剂 絮凝法 CODCR 浊度 

分 类 号：X703[环境科学与工程—环境工程]