The simultaneous biosorption of Cu(II) and Zn on Rhizopus arrhizus:: application of the adsorption models

被引：76

作者：

Sag, Y ^{[1
]}

Kaya, A ^{[1
]}

Kutsal, T ^{[1
]}

机构：

[1] Hacettepe Univ, Dept Chem Engn, TR-06532 Ankara, Turkey

来源：

HYDROMETALLURGY | 1998年 / 50卷 / 03期

关键词：

biosorption; Freundlich model; Langmuir;

D O I：

10.1016/S0304-386X(98)00065-6

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

The biosorption of two divalent metal ions-copper(II) and zinc-in single component and binary systems has been studied using Rhizopus arrhizus. The monocomponent equilibrium data have been analysed using the Langmuir, the Freundlich and the three parameter Redlich-Peterson isotherms. The non-competitive Freundlich isotherms have been found to have the highest regression correlation coefficients and the minimum average percentage errors between the predicted and the experimental values. The effects of the presence of Cu(II) and Zn ions together on the biosorption of Cu(II) and Zn ions have been investigated in terms of initial rates of biosorption and equilibrium isotherms. The competitive Freundlich model has also been demonstrated to provide the best correlation for the biosorption of the two metal ions on R, arrhizus. (C) 1998 Published by Elsevier Science B.V. All rights reserved.

引用

页码：297 / 314

页数：18

共 22 条

[1] MODELING OF LIQUID-CHROMATOGRAPHY EQUILIBRIA [J].