Abstract: Dynamic adsorption of phenol at 30℃ on activated bamboo charcoal was investigated. Effects of phenol initial concentration and adsorbent size on kinetics were discussed. Three models were used to study the adsorption kinetics. It was found that a pseudosecondorder equation provided the best correlation to the data. The initial adsorption rates derived from the model increased with concentration and decreased with size. An intraparticle diffusion was the ratecontrolling step for the adsorption of phenol on activated bamboo charcoal.