KINETIC EQUILIBRIUM MODELLING OF COPPER BIOSORPTION

A thorough examination focused around non-linear and linear regression of different kinetic models (Pseudo 1st Order and Pseudo 2nd Order), two parameter isotherm models (Temkin, Dubinin- Radushkevich, Freundlich and Langmuir) and three parameter isotherm models (Radke-Prausnitz, Koble-Corrigan, Sips, Toth, Hill and Redlich-Peterson) were analysed to investigate different aspects of Cu (II) biosorption onto dead immobilized Rhizopus Arrhizus (DIRA). Six different error functions were utilized to demonstrate the integrity of the fit of a model. Non-linear regression was a more proper technique for getting parameters. Based on R2, SSE, MSE, RMSE, SAE and ARE among three parameter models Redlich-Peterson and Radke-Prausnitz isotherm models enumerated the experimental data best and among two parameter models Langmuir isotherm model gave the better depiction of the work directed. Pseudo 2nd order kinetic model enumerated the biosorption of Cu+2 using DIRA best.