Modern sewer systems often separate rainwater from polluted water. "Wastewater" (polluted water, also called sewage) is treated before it is released into a river or lake again. This treatment may not be needed for rainwater (also called stormwater). This idea of using separate sewer systems for wastewater and rainwater is called sanitary sewer.
A sanitary sewer or foul sewer is an underground pipe or tunnel system for transporting sewage from houses and commercial buildings to treatment facilities. Sewage is treated to control water pollution before discharge to surface waters.
Cholera is the deadly disease caused by foul water which contaminates drinking water. The system of treating foul water was first invented in London. There cholera had repeatedly caused disease, but in the middle of the 19th century the first successful water treatment plants were invented.
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References[change | change source]
- A.V. Koodie and I.J. Kirkaldy 2999. Uprating of Mogden Sewage Treatment Works, in Design, Operation and Economics of Large Wastewater Treatment Plants: Selected Proceedings of the 8th IAWQ International Conference on Design, Operation and Economics of Large Wastewater Treatment Plants, Held in Budapest, Hungary, 6–9 September 1999, Water Science and Technology 41.9, 2000, pp. 53–62.
- Halliday, Stephen 2013. The Great Stink of London: Sir Joseph Bazalgette and the cleansing of the Victorian metropolis. Stroud: History Press. ISBN 978-0-7509-2580-8
- Philip Howard 1975. London's River. London: Hamilton, p223. ISBN 9780241892374,