Adsorption, kinetic and isothermal studies of Chromium(VI) using Sapindus seed powder

Abstract The heavy metals are a major threat to water bodies as they pollute and make them inhabitable and nonconsumable. Adsorption technique has been employed in estimating the metal removal efficiency at a medium level concentration by adopting adsorption isotherms. The aim of this study is to test the possibility of Sapindus as a potential adsorbent of chromium metal from its solution. Batch adsorption experiments have been used to analyze the percent reduction in chromium concentration using Sapindus fruit powder or soapnut powder. Different process variables are investigated like pH, adsorbent concentration, adsorbate concentration and contact time at which considerable reduction of metal in solution can be evaluated.