Determination of the biosorption activation energies of heavy metal ions on Zoogloea ramigera and Rhizopus arrhizus

被引：62

作者：

Sag, Y ^{[1
]}

Kutsal, T ^{[1
]}

机构：

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

来源：

PROCESS BIOCHEMISTRY | 2000年 / 35卷 / 08期

关键词：

biosorption; Z-ramigera; R-arrhizus; heavy metal ions; temperature effect; Langmuir-Hinshelwood model; activation energy;

D O I：

10.1016/S0032-9592(99)00154-5

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

The activation energies of Fe(III) and Pb(II) ions on Zoogloea ramigera and Fe(III), Cr(VI) and Ni(II) ions on Rhizopus arrhizus were determined using the Arrhenius equation. Batch adsorption kinetics was described by the Langmuir-Hinshelwood model. The applicability of the Langmuir-Hinshelwood model for the metal-microorganism systems was tested at different temperatures in the range 15-45 degrees C. With respect to the magnitude of the activation energy of biosorption, the dominant adsorption mechanism in the whole biosorption process was proposed for each metal-microorganism system. (C) 2000 Elsevier Science Ltd. All rights reserved.

引用

页码：801 / 807

页数：7

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