Dihydroxy acetone and its derivatives are important chemical or biochemical materials, which have been widely applied in chemistry, pharmacy, food, cosmetic industry and purification of water.

Water for pharmacy trade: for washing the equipments, such as: big transfusion injection, tablet, biochemical products, and equipment, etc.

Although the pharmacy sewage treated by the secondary biochemical method can reach the standard of drain, it may still cause water body pollution.