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4675545 
Journal Article 
Equilibrium, kinetic and thermodynamic studies on biosorption of Pb(II) and Cd(II) from aqueous solution by fungus (Trametes versicolor) biomass 
Subbaiah, MV; Yuvaraja, G; Vijaya, Y; Krishnaiah, A 
2011 
1 
Taiwan Institute of Chemical Engineers. Journal
ISSN: 1876-1070 
42 
6 
965-971 
WOS:000297278800013 
The biosorption characteristics of Pb(II) and Cd(II) ions from aqueous solution using the fungus (Trametes versicolor) biomass were investigated as a function of pH, biomass dosage, contact time, initial metal ion concentration and temperature. Langmuir and Freundlich models were applied to describe the biosorption of the metal ions by fungus (T. versicolor) biomass. Langmuir model fitted the equilibrium data better than the Freundlich isotherm. The monolayer biosorption capacity of T. versicolor biomass for Pb(II) and Cd(II) ions was found to be 208.3 mg g(-1) and 166.6 mg g(-1), respectively. The calculated thermodynamic parameters (Delta G degrees, Delta H degrees and Delta S degrees) showed that the biosorption of both metal ions was feasible, spontaneous and endothermic at 303-323 K. Experimental data were also used to study biosorption kinetics using pseudo-first-order, pseudo-second-order and intraparticle diffusion kinetic models. The results showed that the biosorption processes of both metal ions followed well pseudosecond-order kinetics. (C) 2011 Taiwan Institute of Chemical Engineers. Published by Elsevier B.V. All rights reserved. 
Biosorption; Trometes versicolor; Kinetics; Isotherm; Thermodynamics