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catchmentthe total area of surrounding land
that slopes towards and drains into a river (4) |
ceramic filtrationfiltration of water using a ceramic
pot (10) |
cloth filtrationa means of removing solids from water
using fine cotton cloth (10) |
coagulantchemical used in water treatment to
neutralise the charge on fine particles (5) |
coagulationneutralisation of the electrical
charge of particles by using a coagulant (5) |
coarse screens(in water treatment) steel bars that
have a spacing of 5–15 cm (5) |
compliance monitoringanalysis of water to check that it is
within required standards (8) |
concentrationamount of a substance in a given
volume of water or air (2) |
contact timelength of time for which the water
undergoing treatment is exposed to a disinfectant (5) |
corrosionprocess whereby a metal gets weaker
due to a reaction with its environment (7) |
criticalitydegree of
importance (6) |