Removal of Zinc Metal from Industrial Wastewater using GCC Adsorbent

Abstract: Nowadays, Zn-loaded wastewater released from industrial activities pose an increasing risk to human health and the environment. Adsorption processes have been widely used for the removal of zinc from the waste stream.. In this study, the efficiency of GCC adsorbent as a novel green technology in the removal of zinc from synthetic wastewater is analyzed. Batch adsorption experi- ments were conducted to evaluate the effect of contact time, pH, adsorbent dose, and initial concentration of adsorbate on Zn removal. The surface morphology of GCC adsorbent was characterized by Fourier transform infrared spectroscopy. Experimental results showed that GCC adsorbent could perform effectively in a wide range of experimental conditions. However, in optimum experimental conditions, such as 150 min contact time, pH 8, and 150 g/L of adsorbent dose GCC adsorbent removes 96.45% of Zn from an aqueous solution having 30 mg/L of Zn concentration.