摘要
通过烧杯试验 ,比较了聚合氯化铝、三氯化铁、二次强化混凝的除浊和除有机物性能。结果表明 ,对于零度附近的冰点水而言 ,三氯化铁配合投加聚丙烯酰胺的混凝效果优于聚合氯化铝 ;二次混凝的效果优于一次投加 ,其中第一次混凝的搅拌时间在 90～ 12 0s为最佳。就助凝剂而言 ,聚丙烯酰胺的助凝效果明显比活化硅酸较好。另外发现 ,兼顾除浊和除有机物的效果评价和优选混凝剂的方法 ,是提高混凝沉淀工艺除污染效率的有效途径之一。
The performances of poly-aluminum chloride, ferric chloride and enhanced coagulation two times in the removal of turbidity and organic substance were compared by jar test, the results indicated that in the case of the freezing point water, the coagulation of ferric chloride in combination of the acylamine of polypropylene was better than poly-aluminum chloride. Enhanced coagulation two times was better than one and the result reached the top when the first time of congealing during 90 s to 120 s. To the assistflocculant, the acylamine of polypropylene was better than activated silica obviously. It can also be seen that it was efficient to evaluate and choose coagulants with respect to turbidity and organic substance removal for increasing pollutant removal efficiency in coagulation and sedimentation.
出处
《辽宁化工》
CAS
2004年第9期503-506,共4页
Liaoning Chemical Industry
