Equilibrium and kinetic modeling of chromium(VI) biosorption by Aeromonas caviae

 
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Equilibrium and kinetic modeling of chromium(VI) biosorption by Aeromonas caviae

Zoumpoylis, Anastasios
Matis, Konstantinos
Karapantsios, Theodoros
Loukidou, M.X.

Biosorption of hexavalent chromium, from aqueous solutions, on Aeromonas caviae particles was investigated in a well-stirred batch reactor. Equilibrium and kinetic experiments were performed at various initial bulk concentrations, biomass loads, temperatures and ionic background. Equilibrium data were well described by typical Langmuir and Freundlich adsorption isotherms. Furthermore, a detailed analysis has been conducted testing several chemical reaction kinetic models in order to identify a suitable kinetic equation, assuming that biosorption is chemical sorption controlled. Predictions based on the so-called pseudo second order rate expression were found in satisfactory accordance with experimental data.

Article / Άρθρο
info:eu-repo/semantics/article

Biosorption
Βιορρόφηση
Metals
Κινητική μελέτη
Chromium(VI) Equilibrium study
Kinetic study
Μέταλλα
Εξασθενές χρώμιο
Μελέτη ισορροπίας

Αριστοτέλειο Πανεπιστήμιο Θεσσαλονίκης (EL)
Aristotle University of Thessaloniki (EN)

2004
2009-06-29T17:00:18Z


Αριστοτέλειο Πανεπιστήμιο Θεσσαλονίκης, Σχολή Θετικών Επιστημών, Τμήμα Χημείας

Colloids and Surfaces A: Physicochemical Engineering Aspects, vol.242, no.1-3[2004] p.93-104 [Published Version]
urn:ISSN:09277757

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info:eu-repo/semantics/openAccess



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