TY  - JOUR
T1  - Kinetic and Equilibrium Models for the Biosorption of Cr (III) on <I>Streptomyces rimosus</I>
AU - , M.N. Sahmoune AU - , K. Louhab AU - , A. Boukhiar 
JO  - Research Journal of Applied Sciences
VL  - 3
IS  - 4
SP  - 294
EP  - 301
PY  - 2008
DA  - 2001/08/19
SN  - 1815-932x
DO  - rjasci.2008.294.301
UR  - https://makhillpublications.co/view-article.php?doi=rjasci.2008.294.301
KW  - Trivalent chromium
KW  -Streptomyces rimosus
KW  -kinetics
KW  -intraparticle diffusion
KW  -equilibrium models
AB  - The biosorption data of trivalent chromium by <I>Streptomyces rimosus</I> has been used for kinetic studies based on fractional power, Elovich, pseudo-first order and pseudo-second order rate expressions. The time-dependent Cr (III) biosorption data were well-described by pseudo-second-order kinetic model. The intraparticle diffusion is not the rate-limiting step for the whole reaction. The Temkin, Freundlich, Dubinin-Radushkevich and Langmuir biosorption models were used for the mathematical description of the biosorption equilibrium of Cr (III) ions to <I>S. rimosus</I>. It was found that the biosorption equilibrium data fitted well to the Langmuir.
ER  -