新型中置式高密度沉淀池的中试研究  

Pilot study of a new type intermediate high density sedimentation tank

作　　者：程锐 杨广峤 程志刚 孙娟 

机构地区：[1]连云港市自来水有限责任公司,江苏连云港222006

出　　处：《供水技术》2010年第5期21-23,共3页Water Technology

摘　　要：针对常规工艺对连云港地区受污染水源水处理效果有限的问题,进行了中置式高密度沉淀池中试研究。结果表明,增大污泥回流比和PAC投加量能够有效降低出水浊度;投加PAM可以提高回流污泥浓度,降低混凝剂用量,改善絮凝效果。当回流比为0.040,PAM投加量为0.08mg/L,PAC投加量为25 mg/L时,出水浊度为1.0 NTU。Aimed at the issue of limited effect for the treatment of polluted water using conventional process in Lianyungang City, a pilot experiment was conducted with an intermediate high density sedimentation tank. The result showed that the effluent turbidity could be effectively reduced by increasing return sludge ratio and PAC dosage. Dosage of PAM could increase the concentration of return sludge, decrease the dosage of coagulant and improve efficiency of flocculation. The effluent water turbidity was 1.0 NTU when the return ratio was 0. 040, dosage of PAM was 0.08 mg/L and PAC was 25 mg/L.

关 键 词：中置式高密度沉淀池 浊度 底泥 回流比 PAC PAM 

分 类 号：TU991.27[建筑科学—市政工程]