Equilibrium and Kinetic Modelling of Aqueous Cadmium Ion and Activated Carbon Adsorption System

Despite their extensive and decade-long application in wastewater treatment, activated carbon remains one of the most viable adsorbents, with substantive practical application, due to high pollutant binding capacity. In this study, commercially available charcoal was applied uptake aqueous cadmium [Cd(II)] ion. The effect some process variables on Cd (II) investigated via batch mode. Furthermore, adsorbents’ surface charge (pHPZC), morphology (using SEM) functional groups FTIR) were explained. pH dependence present adsorption system revealed, while optimum recorded at 5.0. Similarly, (mg/g) decreased increasing adsorbent dosage possible active sites clogging, overcrowding interference. isothermal kinetics analyses experimental data, which aptly validated using hybrid error model, respectively depicted Langmuir isotherm pseudo-second-order kinetic model as best fit. A capacity 682.5 mg g?1 also study. Consequently, characterized by an equilibrium timeframe industrial practicability; hence, successfully for uptake.