利用废铝箔、废铁鳞制备铝铁复合絮凝剂  

Preparation of Poly Aluminium Ferric Coagulation Agent by Waste Aluminium Foil and Mill Scale

作　　者：李英[1] 周婷[1] 商平[1] 

机构地区：[1]天津科技大学海洋科学与工程学院,天津300457

出　　处：《天津科技大学学报》2011年第4期39-43,共5页Journal of Tianjin University of Science & Technology

基　　金：天津科技大学实验室开放基金资助项目(0905A207)

摘　　要：以废铝箔、废铁鳞为原料,利用酸溶、聚合、复合的反应原理制备出有效的铝铁复合型絮凝剂(PAF),制备实验通过正交实验方案讨论了适宜的反应条件;以城市污水处理厂污水为原水,通过絮凝实验考察了絮凝剂投加量、沉降时间、原水pH等因素对污水处理效果的影响,结果表明:聚合硫酸铝铁(PAFS)产品的废水处理效率高于聚合氯化铝铁产品,沉淀反应平衡时间短(1 h),适宜的原水pH范围广(6～9),最佳条件下水样浊度去除率达98%以上.Used waste aluminium foil and mill scale as the raw material, Fe-A1 compossite flocculants were prepared though the acid dissolution, polymerization, and complex reaction, at the same time the orthogonal experiment was designed to determine the best combination of the synthesis. The effect of the dosage, deposition time and pH on the coagulation of this composite flocculants was studied. The result shows that the water treatment efficiency of the product PAFS is much higher than the product PAFC, and it＇s equilibrium time of flocculation reaction is only 1 h, the appropriate reaction conditions of pH is from 6 to 9, the removal ration of turbidity can reach more than 98% under the best conditions.

关 键 词：废铝箔 废铁鳞 絮凝剂 聚合氯化铝铁 聚合硫酸铝铁 

分 类 号：TQ314.253[化学工程—高聚物工业]