Heavy Metal Removal From Automobile Industrial Effluent Using Neem Sawdust Biosorbent

Abstract

The presence of heavy metals in industrial effluent poses a serious environmental threat, particularly due to swift in economic and urban development. This study evaluates the efficiency of Neem sawdust as a sustainable, low-cost adsorbent for the removal of heavy metals from automobile industrial effluent. Batch experiments were conducted as per Standard Methods, resulting in a considerable improvement in water quality. Significant reductions in heavy metal concentrations were observed; Chromium (Cr) decreased by 55%, Iron (Fe) by 87.77%, Nickel (Ni) by 30%, Copper (Cu) by 63.15%, Zinc (Zn) by 88.6%, and Manganese (Mn) by 48.62%, while Cadmium (Cd) was completely removed (100%). These findings demonstrate the potential of Neem sawdust as an effective and environmentally friendly adsorbent for heavy metal removal in wastewater treatment applications.