Optimization of Lead Biosorption by an Ecofriendly Biosorbent Mimusops elengi Using Central Composite Design.

摘要

ABSTRACT The choice of an appropriate biosorbent for the removal of lead from the wastewater effluents was demonstrated. Batch studies were adopted to investigate the effectiveness of Mimusops elengi leaves for the biosorption of lead from aqueous solutions at an optimum pH 5, metal ion concentration 20 mg/L, biosorbent dosage 0.1g and temperature 303 K at an equilibrium agitation time of 180 min. Based on the experimental results, pH, metal ion concentration and biosorbent dosage were optimize.