Kalaivani P., Sankari J., Sitrarasu D. and Pagutharivalan R.
Abstract
Removal of Orange - G in aqueous solution on Acacia Arabic Bark carbon (AABC) has been studied. The effect of various experimental parameters has been investigated using a Batch Adsorption technique (BAT) to obtain information on treating effluents from the dye industry. The extent of dye removal increased with decrease in the initial concentration of the dye and increased with increase in contact time, amount of adsorbent used and the initial pH of the dye solution. Adsorption data were modeled using the Freundlich and Langmuir adsorption isotherms and first order kinetic equations. The kinetics of adsorption was found to be first order with regard to intra-particle diffusion as the rate determining step. The adsorption capacity of dye has been compared. The results indicate that AABC is one of the best adsorbents that can be used in the wastewater treatment for the removal of colors and dyes.