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Journal of Chemistry
Volume 2013, Article ID 965041, 12 pages
http://dx.doi.org/10.1155/2013/965041
Research Article

Biosorption Behavior of Basic Red 46 and Violet 3 by Dead Pleurotus mutilus from Single- and Multicomponent Systems

1Laboratory of Chemical Engineering, Faculty of Mechanical and Chemical Engineering, University of Sciences and Technology Houari-Boumediene, USTHB, BP 32 El Alia, Bab Ezzouar, Algiers, 16111, Algeria
2Faculty of Chemistry, University of Sciences and Technology Houari-Boumediene, USTHB, BP 32 El Alia, Bab Ezzouar, Algiers, 16111, Algeria

Received 26 June 2012; Revised 24 September 2012; Accepted 25 September 2012

Academic Editor: Hassan Arida

Copyright © 2013 N. Yeddou Mezenner et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

The performance of nonviable P. mutilus for removal of Crystal Violet (CV) and Basic Red 46 (BR46) was investigated in single and binary systems. Batch kinetic studies were carried out as a function of pH, temperature, biomass amount, and dye concentration to determine the decolorization efficiency of biosorbent. In single system, the biosorption capacities of P. M. reached 166 and 76.92 mg/g for CV and BR46, respectively. A comparison of kinetic models applied to the adsorption of basic dyes onto P. Mutilus was evaluated for the pseudo-second-order and intraparticle diffusion kinetics models. The experimental data fitted very well the pseudo-second-order kinetic model, whereas diffusion is not only the rate-controlling step. The thermodynamic study indicates that the adsorption of dyes is spontaneous and endothermic process. In binary system, the biosorption capacities of P. Mutilus for both dyes decreased significantly compared to that in single system. Competitive coefficients calculated on a concentration basis using Sheindorf-Rebhun-Sheintuch (SRS) equation were useful for describing the degree of competitive interaction in P. M.