... treatment etc. 2.without chemical content. 3.best price high decolorizing bamboo activated carbon column 1. Raw material: bamboo2. Producing process: crushing ... based, made in physical way.(2).large specific surface area, high adsorption quality(3.)used for decoloration in glucose and sugar ... ,recovery of benzene, toluene, xylene, ethanol, ethers, gasoline, chloroform, carbon tetrachloride, etc.