Inderscience Publishers

Biosorption kinetics and isotherms of copper (II) ions from aqueous solution and application of the MATLAB

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In this study, biosorption kinetic and isotherm models were examined by the MATLAB for removal of copper ions from aqueous solution freely dead single Rhizopus arhizus and mixed dead waste sludge biomass. The copper ions removal efficiencies at equilibrium were 98%, 95% and 92% for freely dead R.arrhizus and two types of dead waste sludge. The experimental data fitted to pseudo-second order kinetic model by having the best fitting degree and using the over whole range of the studies for three biosorbents. The Sips model provided a well fitting isotherm model and described the biosorption system of the removal of Cu2+ ions.

Keywords: biosorption, R arrhizus, waste sludge, copper removal, isotherm models, kinetic modelling, aqueous solutions, heavy metals, wastewater treatment

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