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Treatment of Landfill Leachate by Composite Coagulant
Author(s): 
Pages: 98-103
Year: Issue:  7
Journal: Environmental Science and Management

Keyword:  浓缩液絮凝剂投加量去除率;
Abstract: 采用絮凝沉淀法对垃圾渗滤液膜滤浓缩液进行了处理,探讨了絮凝剂种类、絮凝剂投加量、絮凝剂和助凝剂的配比对处理效果的影响.实验结果表明,FeSO4,Al2(SO4)3,PAC和PAM这几种混凝剂对所处理废水的COD和UV254都有一定的去除效果,其中FeSO4和PAM联合使用时的处理效果最好.在FeSO4投加量为400 mg/L,PAM投加量为6 mg/L,pH为7.7的条件下,废水的COD从3790 mg/L降到606 mg/L,去除率可达84%,UV254去除率达到52%,大大降低了垃圾渗滤液后续处理的负荷,为垃圾浓缩液的初步处理提供了新的参考方向.
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