有机高分子絮凝剂的制备及其在废水处理中的应用  

Preparation of Organic Polymer Flocculant and the Application in Wastewater Treatment

作　　者：王建华 徐静静 王森 吕振华 WANG Jian-hua XU Jing-jing WANG Sen LU Zhen-hua(Zhejiang Yongtai Paper Group Co., Ltd., Fuyang, Zhejiang Province, 311421 China School of Environmental Science and Engineering, Shaanxi University of Science ＆ Technology, Xi＇an, Shanxi Province, 710021 China)

机构地区：[1]浙江永泰纸业集团股份有限公司,浙江富阳311421 [2]陕西科技大学环境科学与工程学院,陕西西安710021

出　　处：《纸和造纸》2017年第2期34-37,共4页Paper and Paper Making

基　　金：浙江省国际科技合作高技术产业联合研发资助项目(2014C54SA1C0001)

摘　　要：以环氧氯丙烷和二甲胺为原料,以三乙烯四胺为改性剂合成有机高分子絮凝剂。通过实验确定絮凝剂的最佳合成条件为:环氧氯丙烷与二甲胺摩尔比为1.3:1,改性剂三乙烯四胺用量为聚合物总量的1.5%,反应温度为70℃,反应时间为6.5 h。合成的絮凝剂投加量为20 mg·L^(-1)时对造纸废水的SS去除率达到95.9%,COD去除率达到75.2%;在微酸性和中性条件下,对废水的处理效果最好。Coagulation is often used in the initial treatment ofpapermaking wastewater. In this study, we use epichlorohydrin and dimethylamine as raw materials, and triethylene tetramine as modifier to synthesize the organic polymer flocculant. Tne optimum conditions for the flocculant synthesis were determined as follows： the mole ratio of epichlorohydrin to dimethylamine was 1.3：1, the amount of triethylenetetramine was 1.5%, the reaction temperature was 70℃, the reaction time was 6.5 h. When the dosage of the flocculant was 20 mg·L-1, the removal rate of SS was 95.9% and 75.2% respectively, and in slightly acidic and neutral conditions, the wastewater treatment effect is the best.

关 键 词：环氧氯丙烷 二甲胺 絮凝剂 造纸废水处理 

分 类 号：X703[环境科学与工程—环境工程]