The Adsorption of Fluoride Ion from Aqueous Solution by Activated Alumina

被引：29
作者：
Young Ku
Hwei-Mei Chiou
机构：
[1] National Taiwan University of Science and Technology,Department of Chemical Engineering
来源：
Water, Air, and Soil Pollution | 2002年 / 133卷
关键词：
adsorption; alumina; fluoride;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The adsorption of fluoride ion in aqueous solution by using alumina was studied in this research. The experimental resultsindicated that the removal efficiency was influenced significantly by solution pH and the optimum operating pH wasfound to be in the range of 5 to 7. For neutral and acidic solutions, the adsorption capacities of fluoride by alumina wasinterfered by the presence of sulfate. The Langmuir and Freundlich isotherms can well describe the equilibrium behaviorsof the adsorption processes. The experimentally determined lowvalues of activation energy indicate nonspecific adsorption isthe predominant mechanism. The surface reaction-limiting batchkinetic model can adequately describe the removal behaviors offluoride ion by alumina adsorption in the batch system.
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页码：349 / 361
页数：12
相关论文
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