... 3.PH value 6-8 Large product of bamboo activated carbon for food additives purification 1. Raw material: bamboo 2. ... industry, sorbic acid, amino acid, citric acid decoloration, food and beverage decoloration, waste water decoloration and removing organic ... matter,medical,water treatment and air purification ,recovery of benzene, toluene, xylene, ethanol, ethers, gasoline, chloroform, ...