Adsorption of copper(II) ions by calcium heulandite

被引：0
|
作者：
O. I. Pomazkina
E. G. Filatova
Yu. N. Pozhidaev
机构：
[1] Irkutsk State Technical University,
来源：
Protection of Metals and Physical Chemistry of Surfaces | 2015年 / 51卷
关键词：
Heavy Metal; Zeolite; Sorption Capacity; Sorption Isotherm; Clinoptilolite;
D O I：
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中图分类号：
学科分类号：
摘要：
The sorption isotherms of copper(II) ions on natural calcium heulandite at a pH of 1.7 and temperature of 298–318 K have been obtained. The exchange sorption capacity with respect to Cu(II) ions at 298 K was 0.47 mg-eqv/g. The equilibrium constants of the ion exchange and thermodynamic functions including Gibbs energy and entropy and enthalpy of sorption have been calculated. The possibility of using calcium heulandite for purification of the wastewaters of the electroplating industry from ions of heavy metals has been assessed.
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页码：518 / 522
页数：4
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