The data was well fitted with Langmuir and Freundlich isotherms. The maximum adsorption capacity for raw, defatted and sulfuric acid pretreated DAB was found to be 6.0, 7.73 and 7.80 mg g1, respectively.
The data was well fitted with Langmuir and Freundlich isotherms. The maximum adsorption capacity for raw, defatted andsulfuric acid pretreated DAB was found to be 6.0, 7.73 and 7.80 mg g1, respectively.