Study on the impact of pH and COD on chemical coagulation dephosphorization

doi:10.11894/1005-829x.2012.32(6).50

INDUSTRIAL WATER TREATMENT ›› 2012, Vol. 32 ›› Issue (6): 50-52. doi: 10.11894/1005-829x.2012.32(6).50

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Study on the impact of pH and COD on chemical coagulation dephosphorization

Wang Hui^1,2, Ma Weifang², Zeng Fangang¹, Han Dongmei²

1. School of Environment & Natural Resources, Renmin University of China, Beijing 100872, China;
2. BeijingAssociation of Sustainable Development, Beijing 100084, China

Received:2012-04-20 Online:2012-06-20 Published:2012-06-20

pH和COD对化学混凝除磷的影响研究

汪辉^1,2, 马伟芳², 曾凡刚¹, 韩冬梅²

1. 中国人民大学环境学院, 北京 100872;
2. 北京市可持续发展促进会, 北京 100084

作者简介:汪辉(1985-),2009级中国人民大学在读研究生.电话:15210845150,E-mail:seegerwanghui@163.com
基金资助:
北京市科技计划项目(10110904740000)

Abstract

Abstract:

Beijing municipal s ewage has been selected as a research object.The impact of pH and COD on the chemical coagulation dephosphorization is studied by using two kinds of conventional coagulants:polymeric ferric sulfate(PFS) and polyaluminium-ferric chloride(PAFC).The results show that both of the best pH for PFS and PAFC are 6,and the total phosphorus removal rates are 96.73% and 88.40%,respectively.The changes of COD in water have basically no effect on the chemical coagulation dephosphorization.

Key words: chemical coagulation, dephosphorization, municipal sewage

摘要：

以北京市生活污水为研究对象,选取聚合硫酸铁(PFS)和聚合氯化铝铁(PAFC)两种混凝剂,考察pH和COD对化学混凝除磷的影响。结果表明,PFS和PAFC的最佳pH都为6,总磷的去除率分别达到了96.73%和88.40%;水中COD的变化对化学混凝除磷基本上没有影响。

关键词: 化学混凝, 除磷, 城市污水

CLC Number:

X703.1

Wang Hui, Ma Weifang, Zeng Fangang, Han Dongmei. Study on the impact of pH and COD on chemical coagulation dephosphorization[J]. INDUSTRIAL WATER TREATMENT, 2012, 32(6): 50-52.

汪辉, 马伟芳, 曾凡刚, 韩冬梅. pH和COD对化学混凝除磷的影响研究[J]. 工业水处理, 2012, 32(6): 50-52.

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pH和COD对化学混凝除磷的影响研究

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