不同混凝剂对深度脱水污泥水的预处理效果研究  

Study on pretreatment effects of different coagulants on wastewater from advanced sludge dewatering process

作　　者：周振[1] 胡大龙[1] 李昊[1] 杜兴治 蒋玲燕 吕燕 乔卫敏[1] 李震 

机构地区：[1]上海电力学院环境与化学工程学院,上海200090 [2]上海城投污水处理有限公司,上海201203

出　　处：《给水排水》2014年第3期128-131,共4页Water & Wastewater Engineering

基　　金：国家高技术研究发展计划(863计划)项目(2012AA063403);上海市科委能力建设计划项目(12250500900)

摘　　要：在白龙港污水处理厂深度脱水污泥水水质特性分析的基础上,考察了聚氯化铝(PAC)、聚氯化铁(PFC)、阳离子型聚丙烯酰胺(cPAM)和阴离子型聚丙烯酰胺(aPAM)单独及复合投加对深度脱水污泥水预处理效果的影响。混凝剂主要去除深度脱水污泥水COD和总磷中的颗粒性部分,且各混凝剂的去除率无明显差异。与无机混凝剂PAC和PFC相比,有机混凝剂PAM更适合于深度脱水污泥水的混凝沉淀预处理。Based on study of characteristics of wastewater from advanced sludge dewatering process of the Bailonggang Wastewater Treatment Plant, the pretreatment effects of polyaluminum chloride （PAC）, polyferric chloride （PFC）, cationic-type polyacrylamide （cPAM） and anionic-type polyacrylamide （aPAM） on advanced sludge dewatering water were investigated by dosing these four kinds of chemicals with different combination. The coagulant mainly removed the COD and particular part of total phosphorus in the wastewater and there was no obvious difference between the removal rates of different coagulants. Compared with the inorganic coagulants including PAC and PFC, the organic coagulants PAM was more suitable for the coagulation sedimentation pretreatment of wastewater from advanced sludge dewatering process.

关 键 词：污泥深度脱水 污泥水 混凝剂 沉降 

分 类 号：TU991.22[建筑科学—市政工程]