聚二甲基二烯丙基氯化铵在污泥脱水中的应用  

Application of PDAC in Sludge Dewatering

作　　者：李亚攀 胡君荣 陈凉一 刘道广 宋玉 LI Yapan;HU Junrong;CHEN Liangyi;LIU Daoguang;SONG Yu(Shanghai Engineering Research Center of Sludge Treatment & Resource Utilization High-Tech Equipment,Shanghai 200092,China)

机构地区：[1]上海污泥处理与资源化研究高新装备工程研究中心,上海市200092

出　　处：《有色冶金设计与研究》2018年第6期109-111,115,共4页Nonferrous Metals Engineering & Research

基　　金：上海市科委基金资助项目(STCSM2017-8-9);上海污泥处理与资源化高新装备工程技术研究中心建设专项(17DZ2252100)

摘　　要：研究了聚二甲基二烯丙基氯化铵、阳离子PAM、铁盐+石灰的调质方式对活性污泥的脱水性能的影响,测试了调质后污泥的毛细吸水时间CST、污泥比阻SRF、泥饼含水率。结果表明,3种调理剂都能使污泥的CST、SRF降低明显,但是只有聚二甲基二烯丙基氯化铵和铁盐+石灰调理后的污泥泥饼含水率能满足污泥深度脱水要求。聚二甲基二烯丙基氯化铵投加率为质量比为绝干泥量的3%时,能将污泥的含水率降低到深脱含水率55%～65%的要求。The authors have studied the influence of the conditioning of activated sludge with polydimethylene diallyl ammonium chloride(PDAC),cationic polyacrylamide(CPAM),and ferrite+lime upon its dewatering ability,and tested the capillary suction time(CST),specific resistance to filtration(SRF),and sludge cake moisture of the sludge conditioned.The results indicate that all the three conditioners reduce CST and SRF in the sludge but only the moisture in the sludge conditioned with PDAC and ferrite+lime meets the requirements for deep dewatering.The PDAC dosing rate shall reduce the sludge moisture into 55%~65% of the moisture after deep dewatering when the mass ratio is 3% of the absolute dry sludge.

关 键 词：聚二甲基二烯丙基氯化铵 活性污泥 深度脱水 CST SRT 泥饼含水率 

分 类 号：TF811[冶金工程—有色金属冶金]