一种新型阳离子复合磁絮凝剂的合成及其应用  

Synthesis of a Novel Cationic Magnetic Flocculant and its Application

作　　者：周正[1,2] 单爱琴[1] 赵宇侠[2] ZHOU Zheng SHAN Aiqin ZHAO Yuxia(School of Environment Science and Spatial Info.natics , China University of Mining and Technology Xuzhou, Jiangsu 221116)

机构地区：[1]中国矿业大学环境与测绘学院,江苏徐州221116 [2]淮海工学院化学工程学院,江苏连云港222005

出　　处：《工业安全与环保》2017年第1期17-20,共4页Industrial Safety and Environmental Protection

基　　金：国家自然科学基金(21307031);江苏省政策引导类专项资金前瞻性联合研究项目(BY2016057-07)

摘　　要：在二甲基二烯丙基氯化铵和丙烯酰胺单体共聚反应中,引入经过油酸改性的Fe_3O_4颗粒,合成一种新型阳离子复合磁絮凝剂CMF。FTIR,XRD,TG和SEM分析表明,Fe_3O_4以磁核的形式均匀地分散在CMF中,且CMF中含有DMDAAC和AM特征官能团,有机物质量分数为62%。在高岭土模拟废水的混凝沉淀试验中,使用CMF作为絮凝剂相对于聚丙烯酰胺和聚合氯化铝,在较短的沉淀时间内取得了较高的浊度去除率。In the process of copolymerization of dimethyl diallyl ammonium chloride（ DMDAAC） and acrylamide（ AM）,Fe_3O_4 particles modified by oleic acid were introduced,and a novel cationic magnetic flocculant CMF was synthesized. FTIR,XRD,TG and SEM analyses showed that Fe_3O_4 particles as magnetic cores were evenly dispersed in CMF,and functional groups belonged to DMDAAC,AM also appeared in CMF and the organic matter mass fraction was 62%. Compared with polyacrylamide and poly aluminium chloride,a higher removal rate of turbidity was acquired in a short time,while CMF was used as a flocculant in the coagulation and sedimentation of kaolin simulation wastewater.

关 键 词：阳离子絮凝剂 磁性 废水处理 

分 类 号：X703[环境科学与工程—环境工程]