This activated carbon is granular activated carbon, adopted strict steam activation process, with high specific surface area and optimized pore size. The reagglomerated structure ensures proper wetting while also eliminating floating material. The structure of activated carbon is favorable for impurities adsorption and population growth of microorganisms for The BAC process (Biological Activated Carbon) to remove organic compounds including taste and odor from water or wastewater. The activated carbon is mainly used in municipal drinking, industrial process water purification, wastewater treatment, food and beverage, pharmaceutical, and industrial purification.