REMOVAL OF BISPHENOL-A ENDOCRINE DISRUPTOR BYADSORPTION ON ACTIVATED CARBON DERIVED FROM WASTELEATHERSR. Anbu and A. Udaya
The goal of this study is to determine the ability of activated carbon derived from waste leather from theleather industry to adsorbed bisphenol-A, an endocrine disruptor, from aqueous solution. The functionalizedactivated carbon was found to have the best adsorption capacity at acidic pH. The weak vander Waals forceof attraction between the activated carbonâs surface and bisphenol-A The kinetics of adsorption were foundto fit well with a pseudo second-order reaction. Langmuir, freundlich, DKR, and the Elovich models wereused to correlate equilibrium isothermal data. Adsorption was observed, and there were no remarkablechanges after three hours. The effect of particle size revealed that the smallest one adsorbsmore due to theavailability of a large number of surface areas. The minimum initial concentration of theadsorbate favouredhigh adsorption. The process was endothermic, feasible, and spontaneous. Nearly 90% of adsorptions in anacidic medium were found. Overall, it was found that the activated carbon derived from waste leathercould be a new sustainable chemical technology for water purification.