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.
Special | A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z | ALL
R |
|---|
rainwater harvestingprocess of collecting and storing
rainwater (3) | |
raw waterwater that has not yet been treated (1) | |
representative samplesample that has all the
characteristics of the matter that it was taken from (12) | |
residual chlorine(in water treatment) the amount of
chlorine left in water after all the pollutants have reacted with it (5) | |
resilienceability to withstand shock, stress or
a natural hazard (5) | |
retention time(in wastewater treatment) the time
that effluent spends in a given environment, e.g. in a sedimentation tank or a
stabilisation pond (11) | |
riskthe chance of a hazard occurring (8) | |
risk assessmentprocess by which the likelihood of
harm from a potential hazard is assessed (8) | |
run-offrainwater that ‘runs off’ the land
i.e. flows over the land surface (3) | |