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铁盐除磷技术机理及铁盐混凝剂的研究进展
Authors
刘永定
李敦海
邢伟
黄文敏
Publication date
1 January 2006
Publisher
Abstract
综述了铁盐除磷技术的机理与过程,铁盐溶于水后,Fe3+通过溶解和吸水发生强烈水解, 生成Fe2(OH)24+、Fe3(OH)45+、Fe5(OH)96+、Fe5(OH)87+、Fe5(OH)78+、Fe6(OH)126+、Fe7(OH)129+等多核羟基络合物。这些含铁的羟基络合物能有效地降低或消除水体中胶体的(?)电位,使胶体凝聚,再通过沉淀分离将磷去除。合适的pH可以提高磷的去除率,对于正铁离子,最适宜的pH为4.5~5; 对于亚铁离子,则为7~8。阐述了三氯化铁、硫酸亚铁和硫酸铁、复合亚铁、聚氯化
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Institute of Hydrobiology, Chinese Academy Of Sciences
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Last time updated on 15/03/2018