混凝沉淀法处理城镇污水厂污泥水的研究  

Study on Treatment of Sludge Water from MWWTP by Coagulation-sedimentation Process

作　　者：刘范嘉[1,2] 付华平[1] 刘建阔[1] 陈焕军[1] 陈曦[1] 张卫江[2] 

机构地区：[1]天津创业环保集团股份有限公司,天津300381 [2]天津大学化工学院,天津300072

出　　处：《中国给水排水》2011年第5期96-98,共3页China Water & Wastewater

基　　金：国家水体污染控制与治理科技重大专项(2009ZX07314-002);天津市建委科技项目(2007-04)

摘　　要：研究了混凝沉淀工艺对城镇污水处理厂污泥水的处理效果。烧杯试验和生产性试验的结果表明，采用混凝沉淀工艺可以去除污泥水中绝大部分的污染物，其中对SS、COD和BOD5的去除率在90％以上，同时对TP、TN和NH3-N的去除率也可分别达到80％以上、70％以上和50％～60％。污泥水经混凝沉淀处理后再回流，各主要污染物对污水厂进水的不利影响基本消除。The treatment efficiency of sludge water from MWWTP by coagulation-sedimentation process was investigated in jar test and full-scale test. The results show that the majority of contaminants can be removed by the coagulation-sedimentation process. The removal rates of SS, COD and BOD5 are all more than 90%, and those ofTP, TN and NH3 -N are more than 80%, 70% and about 50% to 60% respectively. After coagulation-sedimentation process, the sludge water is recycled, and the adverse effects of all kinds of contaminants on the influent of MWWTP are basically eliminated.

关 键 词：城镇污水处理厂 污泥水 混凝沉淀 聚丙烯酰胺 

分 类 号：X703[环境科学与工程—环境工程]