Environment

Water Supply and Distribution Introduction After having treated raw water in water and wastewater treatment plants, the last and final stage of water ...

Wastewater Treatment Composition of untreated domestic wastewater Constituent Abbreviation Concentration (mg/L) Biological oxygen demand BOD 100 – 3...

Water Treatment Complete Process Since the early 1900’s sanitary engineers have been working in the United States to reduce waterborne diseases. In ...

Water pollutants Water that has been withdrawn, used and then returned will be polluted in one way or another. Agricultural return water contains pest...