sew‧age /ˈsjuːɪdʒ, ˈsuː- $ ˈsuː-/ noun [uncountable]
[Date: 1800-1900; Origin: sewer]
the mixture of waste from the human body and used water, that is carried away from houses by pipes under the ground:
Chlorine is used in sewage treatment.
The factory secretly dumped millions of gallons of raw sewage (=sewage that had not been treated) into the Ohio river.

[TahlilGaran] Dictionary of Contemporary English ▲

sewage
noun
ADJ. raw, untreated | treated
VERB + SEWAGE dump, pump In some parts of the country raw sewage is pumped straight in the sea.
treat Sewage should be treated in a proper disposal system.
SEWAGE + NOUN farm, plant, works | disposal, treatment | discharge, effluent, sludge | pollution

[TahlilGaran] Collocations Dictionary ▲