Industrial wastewater is a major contributor to water pollution Industrial wastewater is a major contributor to water pollution. There are various types of industrial waste water based on different contaminants and industries; each region produces its own specific combination of pollutants. The petrochemical industry is rich in phenols and mineral oils. Also the wastewater in food processing plants is high in suspended solids and organic matter. Generally industrial wastewater can be divided into two types: organic industrial wastewater and inorganic industrial wastewater. The recent dam break at the BHP Billiton-owned iron ore mine in Brazil has highlighted the danger of storing large amounts of industrial wastewater as it is undergoing treatment. However, industrial wastewater treatment equipment specially designed to reduce the risk associated with industrial wastewater storage is available in the market in the form of industrial wastewater evaporator. Wastewater evaporators offer a useful option for moving chemical effluents (or offsites for disposal in wastewater treatment facilities). Instead they pump water from the storage pond and spray it into air that is easily evaporated into clean air vapor. Because water is constantly evaporating, the amount of wastewater stored is greatly reduced.