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腈纶废水生化出水的混凝处理

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Indexed by:期刊论文

Date of Publication:2011-11-20

Journal:工业水处理

Included Journals:PKU、ISTIC、CSCD

Volume:31

Issue:11

Page Number:23-27

ISSN No.:1005-829X

Key Words:三氯化铁;混凝;粒径分布;絮体强度;分形维数

Abstract:对腈纶废水生化出水进行混凝处理,通过比较确定三氯化铁为絮凝剂,考察了三氯化铁投加量、助凝剂聚丙烯酰胺投加量、pH对絮凝效果的影响及搅拌速度对絮体的影响.结果表明:当三氯化铁投加质量浓度为90 mg/L,PAM投加质量浓度为2.1 mg/L,搅拌速度为80 r/min时形成的絮体最理想,出水COD、浊度等指标均能满足后续膜分离处理的要求,COD去除率达到22%以上.核算药剂成本为0.14元/m3,具有可行性.

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