The decolorization activated carbon in powder or granular form are made from sawdust , charcoal, coconut shell activated via chemical and physical method, under the process of after treatment. This kind of activated carbon with large surface area, developed micropore and mesopore structure, large volume adsorption, high rapid filtration etc. The activated carbon is widely used in liquid phase and gas phase adsorption, mainly applied for chemical industry, dyeing industry, pharmacy, food industry, environmental protection, electroplating etc. Especially suitable for petrochemical industry, such as gasoliine refining, lubricating oil, mineral。Food industry such as colza oil, palm oil, sweetening agent, food additive, other industries such as dye intermediates, washing liquid decolorization, enviromental protection such as living and industrial water treatment,  industrial tail gas purification, and decolorization, removing smelling in electroplating industry.