Removal of Artificial Dye Solution of Brilliant Green Over a Low-Cost Physically Activated Carbon Prepared from Coconut Shell by Adsorptive Technique

Abstract

The textile effluents are toxic compounds, has a significant negative consequence on the environment, especially during its discharge in water and soil. The present work, physically activated carbon (PAC) is a low-cost effective adsorbent used to adsorb dyes from waste water because of its high adsorption abilities. The batch experiment was investigated by different variables like contact time, dye concentration, dosage of activated carbon, temperature, pH, agitation speed, activation time and desorption studies. At optimum experimental conditions, maximum removal of Brilliant Green (BG) dye has been observed to be 99%. The different adsorption isotherms were modelled to describe the equilibrium data. The adsorption data were analyzed using kinetic and diffusion models. On the basis of experimental results, the physically activated carbon showed excellent sorption properties with high dye removal capacity.