Adsorptive removal of phosphates from aqueous solutions

被引：112
作者：
Peleka, E. N. [1 ]
Deliyanni, E. A. [1 ]
机构：
[1] Aristotle Univ Thessaloniki, Dept Chem, Sect Chem Technol & Ind Chem, GR-54124 Thessaloniki, Greece
来源：
DESALINATION | 2009年 / 245卷 / 1-3期
关键词：
Adsorption; Inorganic materials; Isotherms; Kinetic study; Phosphates; KINETICS; GOETHITE; HYDROTALCITE; AKAGANEITE; SORPTION; WATER;
D O I：
10.1016/j.desal.2008.04.050
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
Phosphates removal from aqueous solutions was investigated using three different inorganic materials: laboratory synthesized goethitc, commercial alumina and commercial hydrotalcite. Equilibrium and kinetic studies were carried out to determine their sorption capacity and the rate of phosphate ions uptake. Equilibrium data were analyzed by Langmuir and Freundlich isotherms. The maximum sorption capacity at 25 degrees C was found to be 244.58 mg g (1) for calcined hydrotalcite at 500 degrees C, 192.9 for calcined hydrotalcite at 400 degrees C, 144 mg g (1) for goethite, 60 mg g (1) for hydrotalcite and 34.57 mg g(-1) for aluminumoxid S. Kinetic data followed a pseudo-second-order kinetic model.
引用
收藏
页码：357 / 371
页数：15
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