STM Article Repository

There is an emerging serious threat to the environment from indiscriminate release of heavy metals into the wastewater and soil from human industrial practices. In the recent years, heavy metals in the environment is of major concern because of their toxicity, bioaccumulating tendency, and threat to human life and the environment. Hexavalent chromium metal is a carcinogenic contaminant found in effluent from a variety of industrial facilities. Thus the removal and recovery of chromium from tannery wastewater is crucial for environmental protection and economic reasons. The main objective of this study is to optimize a new composite for the depollution of contaminated water. The characterization and application of chitosan-coated activated carbon produced from the bark of Ziziphus mauritiana as a possible adsorbent for the removal of Cr(VI) from aqueous solution are described in this study. The mesoporous character of the substance under examination was confirmed by SEM research. The batch experiment was done to see how important process parameters including pH, contact time, adsorbent dosages, and initial Cr(VI) concentration affected the results. At pH 4.5, 5 gm/lit adsorbent dosage, and 140 min contact duration, the greatest adsorption efficacy for Cr(VI) removal by CCZMAC was discovered. 97 percent of Cr(VI) was removed from aqueous solution under ideal conditions. This study shows that CCZMAC, a mesoporous material, can be used as an effective sorbent material for removing Cr(VI) from contaminated water and thus can be used in wastewater treatment.