化学絮凝剂对高岭土微颗粒的絮凝特性研究  

FLOCCULATION CHARACTERISTIC OF CHEMICAL FLOCCULANTS TO KAOLIN PARTICLES

作　　者：严丽君[1,2] 黎彬[1] 沈彩虹[1] 丁国际[1] 

机构地区：[1]上海大学环境与化学工程学院,上海200444 [2]上海大学循环经济研究院,上海200072

出　　处：《水处理技术》2009年第7期42-45,共4页Technology of Water Treatment

基　　金：国家自然科学基金(20677038);863课题(2005AA60101005);上海市重点学科(S30109);上海大学创新基金(A10011107012)

摘　　要：以高岭土悬浊液中小于1μm的高岭土颗粒为对象,研究了无机絮凝剂硫酸铝、聚合氯化铝(PAC)和有机高分子絮凝剂聚丙烯酰胺(PAM)、聚二甲基二烯丙基氯化铵(PDADMAC),以及投加量对悬浊液粒径分布的影响。结果表明,对于粒径在0.200～0.500μm的高岭土颗粒,无机絮凝剂和有机高分子絮凝剂都有较好的絮凝效果;而在0.500～0.700μm粒径的高岭土颗粒,有机高分子絮凝剂的絮凝效果优于无机絮凝剂。不同絮凝剂的投加量对高岭土悬浊液粒径分布有影响,絮凝率也不同。The granulometric distribution less than 1 μm of Kaolin suspension after adding flocculant, such as inorganic flocculants （Al2（SO4）3 and PAC） and organic flocculants （PAM and PDADMAC）, and their dosage on flocculation were studied. The experimental results showed that the inorganic flocculants and organic flocculants affected positively granulometric distribution ranges of 0.200-0.500 μm of Kaolin granule, the effect of organic flocculants on granulometric distribution ranges of0.500-0.700 μm was better than that of inorganic flocculants, and the dosage of flocculants affected granulometric distribution of Kaolin suspension.

关 键 词：絮凝剂 高岭土 微颗粒 

分 类 号：TQ314.253[化学工程—高聚物工业]