水解淀粉接枝改性阳离子化絮凝剂的制备及其应用  

Preparation and Application of Hydrolyzed Starch Grafted Cationic Flocculants

作　　者：于洪海[1] 王黎[2] 范文玉[2] 曲琰[3] 

机构地区：[1]沈阳市环境技术评估中心,沈阳110014 [2]沈阳化工大学环境与生物工程学院,沈阳110142 [3]辽宁中医药大学杏林学院,沈阳110167

出　　处：《安全与环境工程》2012年第6期73-78,共6页Safety and Environmental Engineering

基　　金：国家重大科技专项(2009ZX07528-006-02)

摘　　要：淀粉接枝改性阳离子化絮凝剂对城市污水以及采用絮凝法处理的废水具有良好的处理效果,但是淀粉絮凝剂几乎不溶于水,因此提高淀粉絮凝剂的溶解性,对于提高淀粉絮凝剂的絮凝效果具有重要的意义。本文采用α-淀粉酶对玉米淀粉进行水解,接枝共聚合成淀粉絮凝剂,通过改性最终制备得到水解淀粉接枝改性阳离子化絮凝剂,并通过试验对其合成指标进行了考察以及与普通淀粉絮凝剂的溶解性进行了对比。结果表明:水解淀粉接枝改性阳离子化絮凝剂在具备良好的絮凝效果的同时,其溶解度有了明显的提高。The applicaion of starch grafted modified cationic flocculants to urban sewage and other sewage treatment has good effect,but the solubility of the starch flocculants is not very good,almost insoluble in water. This paper is designed to improve the solubility of the starch flocculant to enhance the flocculation effect. Corn starch is hydrolyzed by α-amylase, grafted and copolymerizated to synthesize starch flocculants and then modified. At the end hydrolyzed starch grafted cationic flocculants are obtained. The check of their synthetic indicators and the comparison of their solubility with that of other ordinary starch flocculants show that the hydrolyzed starch grafted cationic flocculants have better flocculation effect and significantly higher solubility.

关 键 词：淀粉 水解 接枝 絮凝剂 絮凝效果 溶解性 

分 类 号：X703.5[环境科学与工程—环境工程]