Waste water discharge from industry caused by the use of water to wash and clean, the cooling system, and sewerage of chemical contamination of factory. Some factories discharge waste water consists of organic, inorganic high doses were 1, slaughterhouse,. A sugar factory, factory production of alcohol. To release the water containing organic compounds in high doses, such as waste water with molasses and meal. 2. Factory, chemical industry factory dyed fabrics. Factory will release the water with metal cymbals compounds that are toxic, and heavy metals into the canal 3. Factory producing soda fire, shipyard, will leave the water containing mercury. Which cause disease Minamata is extremely harmful to human and various life living area, Audioslave