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Tuesday, 7 Dec 2021, 02:07
Site: OpenLearn Create
Course: Urban Water Supply (WaterSupply_1.0)
Glossary: Glossary
B

back-siphonage

the drawing of external water into a water main as a result of a reduction in pressure in the water main (7)

bacteria

single-celled organisms ranging in size from 0.5 to 5.0 µm (2)

biodegradation

the breaking down of complex substances into simpler substances by micro-organisms (11)

Bishan Gari

a water purifying powder mixture comprising a coagulant/flocculant and a disinfectant, available in Ethiopia (10)

block (water supply)

a given amount of water for which there is a certain water tariff (13)