Activated carbon is a porous carbon material. Due to the highly developed porous structure and huge specific surface area, it has very strong adsorption capacity, and is widely used in industrial production, agriculture, and environmental protection applications as a catalyst or catalyst carrier. Our coal-based activated carbon for water purification is mainly used for purification of drinking water, deep treatment of industrial waste, water and sewage, super pure water making in electronics and pharmaceuticals, and removal of organic substances.