Sewage
Treatment
-
Microbiology
of
Sewage - Sewage is the used water supply containing domestic waste together with human excrement and wash water and industrial waste, including acids, greases, oils, animal matter, vegetable matter and storm waters.
The basic principle in sewage treatment is that water is separated from the waste while the solid organic matter is biodegraded by microorganisms to simple compounds like nitrates, sulphates, carbonates, carbon dioxide, methane etc.





