Glossary
At the end of each definition in this Glossary there is a number in brackets. This indicates the number of the Study Session where the term is first used in this OpenWASH module.
Browse the glossary using this index
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B |
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back-siphonagethe drawing of external water into a
water main as a result of a reduction in pressure in the water main (7) | |
bacteriasingle-celled organisms ranging in
size from 0.5 to 5.0 µm (2) | |
biodegradationthe breaking down of complex substances
into simpler substances by micro-organisms (11) | |
Bishan Garia 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) | |