PAFC-PDMDAAC复合絮凝剂在地表水处理中的絮凝特性  

Coagulation Performance of Composite Flocculant of PAFC-PDMDAAC for Surface Water Treatment

作　　者：孙翠珍[1] 朱大伟[1] 李杰瑞[1] 

机构地区：[1]山东建筑大学市政与环境工程学院,山东济南250101

出　　处：《净水技术》2015年第4期70-73,116,共5页Water Purification Technology

基　　金：山东省自然科学基金(ZR2012EEQ024);山东建筑大学博士基金(No.XNBS1228)

摘　　要：混凝沉淀法相较其他水处理方法具有多种优点,被广泛应用于地表水处理中,该方法的决定性因素之一是絮凝剂性能的优劣。为了提高絮凝剂处理地表水的效果,以PAFC和PDMDAAC为原料合成PAFC-PDMDAAC。研究了在模拟地表水处理中PAFC-PDMDAAC投加量、碱化度、(Al+Fe)/PDMDAAC质量比和特性黏度对PAFC-PDMDAAC混凝性能的影响。结果表明PAFC-PDMDAAC优于PAFC的絮凝效果,PAFC-PDMDAAC的最佳絮凝条件:(Al+Fe)/PDMDAAC质量比为10、碱化度为1.0。Coagulation sedimentation process is widely applied in surface water treatment because of its advantages against other process, and coagulant property is one of the key factors of the process. In order to improve floceulation efficiency of treatment for surface water, a new composite floceulants combined PAFC with PDMDAAC was created. The effect of PAFC - PDMDAAC, mass ratio of （Al＋ Fe）/PDMDAAC, alkalization degree and intrinsic viscosity on coagulation of surface water were studied. The results show flocculation effect of PAFC - PDMDAAC is better than that of PAFC, and the best flocculation conditions of PAFC - PDMDAAC are as follows： mass ratio of （Al ＋ Fe）/PDMDAAC is 10, degree of alkalization is 1.0.

关 键 词：复合絮凝剂(PAFC—PDMDAAC) 地表水处理 (Al+Fe)/聚二甲基二烯丙基氯化铵(PDMDAAC)质量比 碱化度 特性黏度 

分 类 号：X703[环境科学与工程—环境工程]