壳聚糖季铵盐对造纸废水絮凝效果研究  

Study on Effect of Chitosan Quaternary Ammonium on Flocculantion of Paper -making Sewage

作　　者：张亚静[1] 朱瑞芬[1] 李颖[1] 

机构地区：[1]宁波高等专科学校,浙江宁波315016

出　　处：《宁波高等专科学校学报》2001年第2期42-45,共4页Journal of Ningbo College

摘　　要：用氯化三甲基壳聚糖季铵盐(I)作絮凝剂处理造纸废水,Ⅰ在pH值8-13时,COD去除率可达75%以上;Ⅰ较高浓度时的絮凝效果优于低浓度时,适当延长缓慢搅拌时间,能提高Ⅰ絮凝效果;助凝剂的加入,可加速絮凝及提高絮凝效果。Trimemthyl chitosan chloride quate rnary ammonium as flocculant is used to treat paper -making sewage.When ph Value is betwe en 8and 13,the removal rate of COD reaches 75%;Flocculation can be improved with high concentration of I and longer vibrating time.Co agulant acid speeds up and improves flocculation.

关 键 词：壳聚糖季铵盐 造纸废水 絮凝作用 PH值 搅拌时间 助凝剂 

分 类 号：X793[环境科学与工程—环境工程] X703