Powder activated carbon is made from high quality sawdust and charcoal which are refined by scientific method. Its appearance is in black and with large pores. It is non-toxic and tasteless. It is featured by large surface area, strong adsorption capacity, fast filtration speed and high purity of decolonization etc. It is applicable to the decolonization and refinement of the chemical industry, textile industry, dye industry, food industry, environmental protection industry, pharmaceuticals industry etc. It can decolor, refine and remove smell in the field of hydroquinone, glycerin, plating, fluorescent whitening agent, edible oil, monosodium glutamate, saccharin, citric acid, industrial sewage, tap water, pure water.