淀粉改性高分子重金属絮凝剂的合成与性能研究  

Study on Synthesis and Characteristics of Starch-Modified Macromolecule Heavy Metal Flocculant

作　　者：汪建新[1] 李书鹏[2] 郑茹娟[2] 娄春华[2] 赵立杰[2] 邬宏源[2] 

机构地区：[1]齐齐哈尔大学材料科学与工程学院,齐齐哈尔161006 [2]齐齐哈尔大学化学与化工工程学院,齐齐哈尔161006

出　　处：《化工时刊》2011年第2期19-22,共4页Chemical Industry Times

基　　金：黑龙江省教育厅科研项目(11531421)

摘　　要：用(NH4)2Fe(SO4)2/H2O2为引发剂合成淀粉-丙烯酰胺高分子共聚物,利用CS2在碱性条件下黄原酸化,合成高分子重金属絮凝剂(SAX)。研究絮凝剂去除水中的Pb2+的反应条件及机理。实验结果表明,溶液的pH值对Pb2+的去除效果有较大影响,pH值高时去除效果好,去除率可达99.70%,而且絮凝剂还具有较好去除水中浊度的能力。A novel water-insoluble macromolecule heavy metal flocculant（SAX） has been prepared by reacting starch and acrylamide with（NH4）2Fe（SO4）2/H2O2 as initiator,and xanthate with CS2 in alkaline medium.The mechanism of Pb2＋ removal with the flocculant（SAX） and several affecting factors were also discussed.The result of experiment showed that：pH value had great effect on the removal rate of Pb2＋.The higher pH value was,the better Pb2＋ removal rate was,removal rate could reach 99.70%.On the other hand flocculant（SAX） has a strong removing effect on turbidity.

关 键 词：重金属絮凝剂 淀粉 丙烯酰胺 黄原酸 

分 类 号：X703[环境科学与工程—环境工程]