超支化聚酯季铵盐衍生物的絮凝脱色性能  

Flocculability of hyperbranched polyester quaternary ammonium derivatives

作　　者：陈倩兰[1] 杜英英[1] 沈丽[1,2] 邢彦军[1,2] 戴瑾瑾[1] 

机构地区：[1]东华大学化学化工与生物工程学院,上海201620 [2]教育部生态纺织重点实验室东华大学,上海201620

出　　处：《印染》2010年第17期1-3,共3页China Dyeing and Finishing

基　　金：上海市自然科学基金项目(10ZR1400500);中央高校基本科研业务费专项资金项目(9D10508及10D10505)

摘　　要：采用2,3-环氧丙基三甲基氯化铵改性的超支化聚酯作为超支化絮凝剂MHP,分别对酸性、分散、直接和活性四类11种染料进行了模拟染料废水絮凝脱色处理。研究了超支化絮凝剂MHP的加入量、pH值和染料初始质量浓度对脱色率的影响。结果表明,超支化絮凝剂MHP对这四类染料都有脱色效果,其中分散染料的总体脱色效果最好。另外,通过研究不同染料的絮凝效果与染料分子结构的关系,推测超支化絮凝剂MHP对分子结构呈线性的染料有较好的絮凝效果。Hyperbranched flocculant MHP, which was a kind of hyperbrached polyester modified with 2,3-epoxypropyltrimethylammonium chloride, was applied to decolorize 11 dyes of acid dyes, disperse dyes, direct dyes and reactive dyes. Influences of dosage of hyperbranched flocculant MHP, pH value and initial dye concentration on decoloration rate were studied. It was found that hyperbranched flocculant MHP could decolorize all the four types of dyes, and the best effect was to disperse dyes. It was deduced from the relationship between flocculation effect and molecular structure of different dyes that hyperbranched flocculant MHP featured better flocculation effect on dyes with linear molecular structure.

关 键 词：染整 废水处理 超支化聚酯 絮凝 染料 

分 类 号：X791[环境科学与工程—环境工程]