Ion-exchange equilibria of Cu2+, Cd2+, Zn2+, and Na+ ions on the cationic exchanger amberlite IR-120

被引：44

作者：

Valverde, JL ^{[1
]}

de Lucas, A ^{[1
]}

Gonzalez, M ^{[1
]}

Rodríguez, JF ^{[1
]}

机构：

[1] Univ Castilla La Mancha, Dept Chem Engn, Ciudad Real 13004, Spain

来源：

JOURNAL OF CHEMICAL AND ENGINEERING DATA | 2001年 / 46卷 / 06期

关键词：

D O I：

10.1021/je010102k

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Equilibrium ion-exchange isotherms of Na+/Cu2+, Na+/Cd2+, and Na+/Zn2+ on a strong acid resin, Amberlite IR-120, in aqueous medium at (283 and 303) K have been determined in order to assess the possibility of using ion exchange to eliminate heavy metal ions from industrial aqueous liquid streams. The experimental equilibrium data have been satisfactorily correlated using the homogeneous mass action law model (LAM). This model assumes nonideal behavior for both the solution and the solid phase. Wilson and Pitzer equations have been used to calculate activity coefficients in the solid and liquid phases, respectively. The values of the thermodynamic equilibrium constant demonstrate temperature dependence.

引用

页码：1404 / 1409

页数：6

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