铟置换液制备聚硅酸氯化铝及其对印染废水的处理  

Preparation of Polysilicate Aluminum Chloride from Indium Displacing Solution and Its Application in Dyeing Wastewater Treatment

作　　者：吕志伟[1] 杨阳[2] 

机构地区：[1]河北工程大学城市建设学院,河北邯郸056038 [2]河北工程大学理学院,河北邯郸056038

出　　处：《化工环保》2010年第3期246-249,共4页Environmental Protection of Chemical Industry

摘　　要：以铟置换液和工业水玻璃为原料,以盐酸为活化剂和调节剂制备聚硅酸氯化铝絮凝剂。考察了聚硅酸氯化铝制备过程中各因素对印染废水处理效果的影响。实验确定的最佳工艺条件为铝硅比(铝与硅的质量比)为1、聚合pH为1.6、聚合时间为12h、聚合温度为25℃。用在此条件下制备出的聚硅酸氯化铝絮凝剂处理印染废水,印染废水脱色率可达95%以上。Polysilicate aluminum chloride flocculant was prepared using aluminum-containing indium displacing solution and industrial water-glass as raw materials,hydrochloric acid as activator and regulator.The preparation factors affecting its use effect in the treatment of dyeing wastewater are investigated.The optimum process conditions determined through the experiments are as follows: mass ratio of aluminum to silica 1,polymerization pH 1.6,polymerization time 12 h,polymerization temperature 25 ℃.Polysilicate aluminum chloride flocculant prepared under these conditions can be used in dyeing wastewater treatment with over 95% of decolorization efficiency.

关 键 词：铟置换液 聚硅酸氯化铝 絮凝剂 脱色 印染废水 综合利用 废水处理 

分 类 号：X703.5[环境科学与工程—环境工程]