Adsorption kinetics of o-cresol on activated carbon from palm seed coat

The activated carbon prepared from palm seed coat by dolomite process showe d more than 95% removal of o-cresol from aqueous solution under optimum con ditions. The adsorption capacity calculated by Freundlich adsorption isothe rm gave 19.58 mg/g of o-cresol removal. The kinetic studies revealed the ov erall rate constant decrease with increasing concentration of o-cresol. The activated carbon showed reversible uptake of o-cresol and thus have a good application potential for the removal/recovery of o-cresol from aqueous so lution. Film diffusion was found to be the rate limiting step. Recovery of used carbon was studied by in situ chemical regeneration technique and show ed good result.