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.
出处
《中国给水排水》
CAS
CSCD
北大核心
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)
关键词
城镇污水处理厂
污泥水
混凝沉淀
聚丙烯酰胺
municipal wastewater treatment plant （MWWTP）
sludge water
coagulation-sed- imentation process
PAM
