| sewage |
waste matter carried away in sewers or drains
출처: wordnet.princeton.edu/perl/webwn
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|---|---|
| sewer gas |
foul-smelling gas that forms in sewers
출처: wordnet.princeton.edu/perl/webwn
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| sewing ring |
a cloth-covered ring surrounding an artificial cardiac valve and used for securing the valve in position.
출처: www.mercksource.com/pp/us/cns/cns_hl_dorlands.jspz...
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| sewage |
Sewage is domestic, municipal, or industrial liquid waste products. How it is disposed varies by the area, and the local commitment to the environment. In most developed countries, national law mandates sanitary treatment of sewage, and outfalls are regulated. Surprisingly, many quite wealthy countries have untreated outfalls directly to surface water, often causing disease, pollution and undrinkable tap water. ...
출처: en.wikipedia.org/wiki/Sewage
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| sewage treatment |
Sewage treatment is one of the most widespread biotechnological processes in Western societies, to deal with the huge amounts of human and animal waste that such societies produce. Sewage treatment methods vary widely, but all have a biological basis to break down the organic material in sewage and convert it into something that can be safely discharged into the environment (usually rivers or seas).
출처: www.fao.org/docrep/003/X3910E/X3910E22.htm
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