Gray water treatment and recycling (DGWS1)
With regarding to declining water resources and environmental and economic issues, water recycling in residential complexes (dormitories, barracks and . educational complexes) and entertainment complexes (swimming pools, hotels, and Tourist and tourism complexes) is important to consider.
Carwash and carpet washing wastewater cause serious environmental risks due to their contaminants with chemical nature. Therefore, the elimination of pollutants and treated water recycling in these industries is very important from environmental and economic point of view.