Abstract
Surface reaction methodology was employed for the optimization of cadmium removal onto sawdust with respect to various physico-chemical parameters. FT-IR was principally employed for the assessment of the chemical structure of sawdust. The biosorption equilibrium data were best represented by Khan and Langmuir isotherms. The monolayer sorption capacity obtained from Langmuir model was found to be 41.21 mg/g. Biosorption showed pseudo second order rate kinetics at different initial concentration of Cd(II). The intraparticle diffusion study indicated that film diffusion may be involved in the current study. Thermodynamic parameters showed that the sorption process is exothermic and non-spontaneous.
Original language | English |
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Pages (from-to) | 1297-1302 |
Number of pages | 6 |
Journal | Chemical Engineering Transactions |
Volume | 24 |
DOIs | |
Publication status | Published - 2011 |
Externally published | Yes |