用废铝渣制备聚合硫酸铝
Environmental Protection of Chemical Industry(2005)
Abstract
将铝材厂前处理过程产生的废铝渣用硫酸溶解,然后加入有机添加剂等进行聚合反应,制备新型水处理剂———聚合硫酸铝(PAS)。用PAS与聚合氯化铝(PAC)进行絮凝对比实验,结果表明,对于硅藻土浊度水、水源水和工业废水等,PAS比PAC具有更优异的除浊、脱色、去除COD和悬浮物的效果。该工艺既可回收利用废铝渣,又可省去废渣处置费用,为废铝渣的综合利用提供了实用技术。
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Key words
polyaluninum sulfate,preparation,acidolysis,aluminum scrap,flocculant,comprehensive utilization
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