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

Authors
Sag, Y Kutsal, T
Citation
Y. Sag et T. Kutsal, Determination of the biosorption activation energies of heavy metal ions on Zoogloea ramigera and Rhizopus arrhizus, PROCESS BIO, 35(8), 2000, pp. 801-807
Citations number
27
Categorie Soggetti
Biotecnology & Applied Microbiology","Biochemistry & Biophysics
Journal title
PROCESS BIOCHEMISTRY
ISSN journal
13595113 → ACNP
Volume
35
Issue
8
Year of publication
2000
Pages
801 - 807
Database
ISI
SICI code
1359-5113(200003)35:8<801:DOTBAE>2.0.ZU;2-D
Abstract
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 Lan gmuir-Hinshelwood model. The applicability of the Langmuir-Hinshelwood mode l for the metal-microorganism systems was tested at different temperatures in the range 15-45 degrees C. With respect to the magnitude of the activati on energy of biosorption, the dominant adsorption mechanism in the whole bi osorption process was proposed for each metal-microorganism system. (C) 200 0 Elsevier Science Ltd. All rights reserved.