Granular activated carbon (GAC) generally is an organic carbon filtration media wood, coconut shells, coal or peat used for water purification, typically applied in a fixed bed application. Granular activated carbon is for treatment of life with hydrated waste� water deep purification, food, chemical industry, electric power, electroplating, industrial water dechlorination and oil deodorization. Granular activated carbon for water purification:�  1. Water treatment industry: water, industrial water, sewage treatment, purified water, beverages, food, medicine water. 2. Air purification: impurity, odor, adsorption, in addition to formaldehyde, benzene, toluene, xylene, hydrocarbons and other harmful gas substances 3. Industry: bleaching, purification, air purification 4. Reagents: Catalyst and catalyst support 5. Fish: filter