以马铃薯淀粉为原料进行改性制备助凝剂的研究  

Studies on Coagulating Aids with Modified Starch as Raw Materials

作　　者：金罗云[1] 张福[1] 

机构地区：[1]天津科技大学海洋科学与工程学院,天津300457

出　　处：《盐业与化工》2010年第2期20-22,25,共4页Jounral of Salt and Chemical Industry

摘　　要：通过烧杯试验,比较了不同试剂处理的改性淀粉助凝剂和聚合氯化铝(PAC)混凝,降低污水浊度的效果,考察了各种试剂改性淀粉助凝剂的最佳种类与最佳投量去除污水浊度的影响。结果表明,经双氧水单因素氧化改性后得到的淀粉助凝剂与PAC复合药剂混凝除浊效果最好,可达96.68%,酸改性,碱改性,接枝改性的最佳改性试剂分别为复合酸,氢氧化钠和硫酸铵,混凝除浊效果分别为92.68%,92.50%和91.66%。Comparing with the effects of different modified starch coagulating aids on improving turbidity removal combined with Polymerization aluminum chloride （ PAC ） through coagulation experiments, the papers tried to find out the best kind of modified reagents and the optimal dosage of them. The results showed that starch coagulating aid modified by hydrogen peroxide oxidation get the best turbidity removal ratio, which was up to 96.68%. Better reagents of acid modified, alkali modified and grafted are compound acid, sodium hydroxide and ammonium sulfate, the effects of turbidity removal are respectively 92.68%, 92.50% and 91.66%.

关 键 词：助凝 PAC 淀粉 改性 浊度 

分 类 号：TQ314.253[化学工程—高聚物工业]