TRANSLOCATION OF RICE CELL-BASED BIOSORBENT FOR EFFICIENT REMOVAL OF CU2+ IONS FROM WATER BODIES
Keywords:
kinetics, reaction order, copper ion, sorption, pseudo-first-order kinetic model pseudo-second-order kinetic modelAbstract
This study investigated the possibility of removing toxic Cu2+ ions from aqueous solutions of the biosorbent obtained by modifying rice husk biomass. Biosorbent absorbed Cu2+ ion at 40°C in the amount of 43.18 mg/g. The reaction order between biosorbent and metal ion, isotherm and thermodynamic analyzes are presented. Sorption between biosorbent and metal ion at different temperatures (293-313K) was found to correspond to the pseudo-second order (0.97-0.98) kinetic model. Based on the analysis of the adsorption isotherm, it was concluded that the Freundlich isotherm model (0.97-0.99) is more suitable than the Langmuir isotherm model (0.95-0.98).
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