工业水处理 ›› 2012, Vol. 32 ›› Issue (6): 50-52. doi: 10.11894/1005-829x.2012.32(6).50

• 试验研究 • 上一篇    下一篇

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. 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
  • 收稿日期:2012-04-20 出版日期:2012-06-20 发布日期:2012-06-20
  • 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)

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

Wang Hui1,2, Ma Weifang2, Zeng Fangang1, Han Dongmei2   

  1. 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

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

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

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