Methods of domestic waste water disposal
After the waste water is treated it is disposed in the nature in the following two principal methods
a. Disposal by Dilution where large receiving water bodies area available
b. Land disposal where sufficient land is available
The choice of method of disposal depends on many factors and is discussed later. Sanitary engg starts at the point where water supply engg ends.It can be classified as
- Collection works
- Treatment works
- Disposal works
The collection consists of collecting tall types of waste products of town. Refuse is collected separately. The collection works should be such that waste matters can be transported quickly and steadily to the treatment works. The system employed should be self cleaning and economical.
Treatment is required to treat the sewage before disposal so that it may not pollute the atmosphere & the water body in which it will be disposed of .The type of treatment processes depend on the nature of the waste water characteristics and hygiene, aesthetics and economical aspects.
The treated water is disposed of in various ways by irrigating fields or discharging in to natural water courses.
Different Methods of domestic waste water disposal include (Systems of Sanitation)
1) CONSERVENCY SYSTEM
2) WATER CARRIAGE SYSTEM