制革废水后期处理用助剂的合成与应用  

Preparation and Application of Amphoteric Flocculating Agent Used in Leather Dyeing Drain Water

作　　者：匡卫[1,2] 付丽红[1] 卢行芳[3] 刘吉磊[1] 

机构地区：[1]山东轻工业学院轻化与环境工程学院,山东济南250353 [2]山东大学化学与化工学院,山东济南250100 [3]浙江工贸职业技术学院,浙江温州325003

出　　处：《皮革与化工》2010年第5期8-10,14,共4页Leather And Chemicals

摘　　要：以改性玉米淀粉、二甲基二烯丙基氯化铵(DMDAAC)与丙烯酰胺(AM)为原料,采用接枝聚合法制备两性废水处理助剂,并用于制革综合废水混凝-接触氧化法的后期处理。结果表明:反应温度50℃、反应时间4 h、原料摩尔比n(AM)∶n(DMDAAC)=1∶3、引发剂用量2×10-4mol/kg时,该处理剂的接枝效率可达93.38%,制得的产品能显著降低制革废水色度和具有良好的絮凝效果。Amphoteric flocculating agent used in leather drain water was prepared by copolymerization of oxidated starch with dimethyl diallyl ammonium chloride（DMDAAC） and acryamide（AM）.The experimental results showed that the optimization of preparation conditions for the introduction of cationic flocculants group is the temperature of 50℃,the reaction time of 4 hours,the monomer molar ratio of n（AM）∶n（DMDAAC） = 1∶3 and the amount of initiator 2×10-4mol/kg.Under these conditions,the graft efficiency of cationic monomer achieved to 93.38%.The flocculation rate reached its highest point,while the cationic degrees of amphoteric flocculating agent was 23%.

关 键 词：制革废水 污水处理 

分 类 号：X794[环境科学与工程—环境工程]