工业水处理 ›› 2006, Vol. 26 ›› Issue (7): 7-9. doi: 10.11894/1005-829x.2006.26(7).7

• 专论与综述 • 上一篇    下一篇

镁化合物在工业废水处理中的研究应用现状

程国斌1, 吴艳平2, 马伟3   

  1. 1. 平顶山学院, 河南平顶山 467001;
    2. 佛山科学技术学院, 广东佛山 528000;
    3. 大连理工大学, 辽宁大连 116024
  • 出版日期:2006-07-20 发布日期:2010-10-01

Research and development of magnes ium-salt flocculants in was tewater treatment

Cheng Guobin1, Wu Yanping2, Ma Wei3   

  1. 1. Pingdingshan Institute, Pingdingshan 467001, China;
    2. Foshan University, Foshan 528000, China;
    3. Dalian University of Technology, Dalian 116024, China
  • Online:2006-07-20 Published:2010-10-01

摘要:

Mg2+在pH9.5~11.5时可以形成氢氧化镁沉淀,所形成的氢氧化镁沉淀对废水中的污染物质具有很好的絮凝效果,因而近年来得到国内外研究人员的广泛重视。作者全面论述了镁化合物(氯化镁、氢氧化镁、海水、卤水、干卤等)在水处理中的研究应用现状,展望了其在工业废水处理中的应用前景。

关键词: 氢氧化镁, 絮凝剂, 废水处理

Abstract:

When magnesium ion is initially present in wastewater, an increase in pH upon alkalization will result in the precipitation of magnesium hydroxide. The resulting magnesium hydroxide is a gelatinous precipitate, which has been found to serve as an efficient coagulant and flocculant aid. Over the past years, the role of magnesiumions as a potential flocculant for the chemical clarification of wastewater have been investigated. A comprehensive review of high pH magnesium flocculant application in wastewater treatment and the development trend in the future are presented.

Key words: magnesium hydroxide, flocculant, wastewater treatment

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