Activated carbons (ACs) were prepared front chicken waste (CW) and coal (E-coal) blended at the ratios of 100:0, 80:20, 50:50, 20:80, and 0: 100. The process included carbonization in flowing gaseous nitrogen (300 mL min(-1)) at ca. 430 degrees C for 60 min and Successive steam activation (0. 1 mL min(-1) water injection with a flow of N-2 at 100 mL min(-1)) at 650 degrees C for 30 min. Chicken waste is low in Sulfur content but is high in volatile matter (similar to 55 wt %), and ACs with higher specific surface area were more Successfully obtained by mixing with coal. The specific surface area of the CW/Coal blend AC can be estimated by SSA(BET) = -65.8x(2) + 158x + 168, where SSABET is the specific surface area in m(2) g(-1) as determined by the BET method using CO, as the adsorbent, where x is the coal fraction by weight in the CW/coal blend ranging from 0.0 to 1.0 (e.g., x = 0.0 signifies the blend contains no coal and x 1.0 signifies the blend consists of 100% coal).