新型环保型造纸废水絮凝剂的研制与应用  

Preparation and Application of a Novel Environment-Friendly Flocculant in Papermaking Wastewater Treatment

作　　者：吴中华[1] 罗春[2] 姜建清[1] 高原[1] 张会玲[1] 曾德芳[1] 

机构地区：[1]武汉理工大学资源与环境工程学院,湖北武汉430070 [2]武汉市环境监测中心站,湖北武汉430015

出　　处：《造纸科学与技术》2008年第3期29-31,38,共4页Paper Science & Technology

基　　金：国家大学生创新性试验计划(GJT2007-20)

摘　　要：使用Na2SiO3对天然高分子壳聚糖进行交联改性制备出一种新型环保型造纸废水絮凝剂,并考察了pH值、搅拌速率等对CODcr去除率和SS去除率的影响,确定了最佳的絮凝处理工艺,使其与传统絮凝剂相比,对废水中CODcr的去除率提高了14.5%、SS去除率提高了9.1%,且吨废水的药剂成本下降了18.9%,具有明显的经济与环境效益。By modifying chitosan with Na2SiO3, a novel environment-friendly flocculant has been prepared. By testing and studying the influence of pH, agitation rate, and so on, we have found the best flocculation technology of this flocculant. Compared with the traditional flocculant ,the removal rates of COD, and SS increase 14.5% and 9.1% respectively, the cost of flocculant reduces 18.9% , which has remarkable benefits in economy and environment.

关 键 词：环保型 絮凝剂 壳聚糖 造纸污水处理 

分 类 号：X793[环境科学与工程—环境工程]