Comparison of sorption efficiency of natural and MnO₂ coated zeolite for copper removal from model solutions

Abstract Removal of heavy metals from the environment is important for living beings. The present work investigates applicability natural and MnO 2 - coated zeolite as sorbent removal copper synthetic solutions. Batch experiments were carried out to identify influence initial pH concentration in process adsorption. A maximum efficiency Cu(II) was observed 10 mg/L (95.6%) modified (96.4%) zeolite, where values almost identical, but at 500 three times higher. Based on correlation factors R , Langmuir isotherms better describe decontamination than Freundlich. optimum value set 5.0.