Coal-based powdered activated carbon can be manufactured in various grades with different adsorption capabilities, decolorization abilities, and particle sizes to meet user requirements. Powdered activated carbon has a rapid adsorption speed, exhibiting flocculation and filtration assistance effects. It requires minimal construction investment for users and low operating costs, making it highly favored in water purification plants and sewage treatment plants. It has wide applications in food, decolorization, crystallization, filtration, and material purification. It is also the primary material for activated carbon felt and foam plastics. Suitable for the decolorization and refinement of sugar types like sucrose and maltose, as well as for the removal, purification, and refinement of macromolecular pigments in citric acid, cysteine, oils, and chemical products.