The adsorption studies were carried out in a 2 L Erlenmeyer flask. The methylene blue solution was prepared with deionized
water. The adsorption of methylene blue by DAB was investigated for the initial dye concentration range 1-5 mg/L at adsorbent dose of 1 g L1. The concentrations of dye and the dose of adsorbent were chosen based on earlier studies with similar system