PAC/PAM强化混凝沉淀法处理校园屋面雨水的研究  

The treatment of campus rainwater by enhanced coagulation and precipitation process

作　　者：王丽娟 刘鑫 靖一丹 陈爱武 刘博川 WANG Lijuan;LIU Xin;JING Yidan;CHEN Aiwu;LIU Bochuan(School of Civil Engineering and Transportation,Hebei University of Technology,Tianjin 300401,China;Wuqing Water Supply Company,Tianjin 301700,China)

机构地区：[1]河北工业大学土木与交通学院,天津300401 [2]天津市武清自来水公司,天津301700

出　　处：《河北工业大学学报》2018年第4期98-102,共5页Journal of Hebei University of Technology

基　　金：河北省住房和城乡建设厅研究项目(2013-125);河北省专家与留学人员服务中心资助

摘　　要：采用聚合氯化铝(PAC)/阳离子型聚丙烯酰胺(PAM)强化混凝沉淀法对校园屋面雨水处理进行了实验研究,考察了PAC、PAM投加量、pH、搅拌速度及搅拌时间水力条件对COD、浊度去除率的影响.结果表明:混合搅拌强度300 r/min快速搅拌1 min,100 r/min中速搅拌2 min,60 r/min慢速搅拌5 min的条件下,PAC的最佳投加量为60 mg/L,PAM的最佳投加量1 mg/L;原水样pH在6-7的浊度去除效率达到93.5%,COD去除率达到63%以上.Enhanced coagulation precipitation method on treating the roof rainwater of campus using polyaluminum chloride （PAC） / cationic polyacrylamide （PAM） was studied. The effects of PAC, PAM dosage, pH, hydraulic conditions such as stirring speed and stirring time on the removal rate of COD and turbidity were investigated. The result shows that the optimum mixing dosage of PAC is 60 mg/L, and the optimum dosage of PAM is 1 mg/L, when the quickly stirring time is 1 min with mixing strength of 300 r/min, quickly, medium stirring speed is 2 min with mixing strength of 100 r/min and 5 min with slowly stirring speed at 60 r/min. The removal efficiency of raw water turbidity reached about 93% and the removal rate of COD reached 65% with pH in the 6-7.

关 键 词：高分子混凝剂 聚铝 聚丙烯酰胺 絮凝 雨水 

分 类 号：X703.5[环境科学与工程—环境工程]