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effluent

1 of 2

adjective

ef·​flu·​ent ˈe-ˌflü-ənt How to pronounce effluent (audio)
e-ˈflü-,
ə-
: flowing out : emanating, outgoing
an effluent river

effluent

2 of 2

noun

: something that flows out: such as
a
: an outflowing branch of a main stream or lake
b
: waste material (such as smoke, liquid industrial refuse, or sewage) discharged into the environment especially when serving as a pollutant

Did you know?

Effluent comes from the Latin verb effluere, "to flow out". In an older meaning, an effluent was a stream flowing out of a river or lake. But nowadays effluent almost always means wastes that pour into our water and air. Liquid factory waste, smoke, and raw sewage can all be called effluents. An effluent filter keeps treated waste flowing out of a septic tank from clogging up its drainage pipes.

Example Sentences

Noun The factory has been accused of discharging effluent into the river.
Recent Examples on the Web
Adjective
That treatment plant's effluent flows into Norton Creek, a tributary of the Huron River. Keith Matheny, Detroit Free Press, 4 Aug. 2022 When the waste reaches treatment plants, the chemicals concentrate in effluent released into lakes and rivers and sludge marketed to farmers and gardeners as fertilizer, studies have found. Michael Hawthorne, Chicago Tribune, 10 July 2022 When the waste reaches treatment plants, the chemicals concentrate in effluent released into lakes and rivers and sludge marketed to farmers and gardeners as fertilizer, studies have found. Michael Hawthorne, Chicago Tribune, 26 June 2022 One prong involves the agency’s decision to issue the permit without setting specific effluent limits on mercury and other pollutants. From Usa Today Network And Wire Reports, USA TODAY, 21 Apr. 2022 The soil under its 2.7 million South Florida residents allows septic tank effluent to reach groundwater, a problem intensified by climate change. Jim Morrison, Anchorage Daily News, 13 Apr. 2022 Utah’s scientific community, however, fears island building could compound the lake’s ecological problems stemming from invasive plants and fish, a legacy of effluent dumping, algal blooms and a loss of native biodiversity. Brian Maffly, The Salt Lake Tribune, 8 Mar. 2022 On the west side of Phoenix, for example, effluent from a wastewater treatment plant pours into the Tres Rios Wetlands, covering about 700 acres along the Salt River. Ian James, AZCentral.com, 8 Sep. 2021 That’s necessary to protect the environment as effluent treatment prevents the discharge of hazardous substances that can contaminate ground water and cause illnesses and other issues. Forbes, 1 Sep. 2021
Noun
In these zones, no effluent like sewage or waste can be discharged. Sylvia Goodman, Chicago Tribune, 17 July 2022 The latest wastewater data show that the amount of virus detected in effluent increased from 15.5 million to 19.8 million coronavirus copies per liter of sewage as of Tuesday, before falling to 18.1 million Wednesday. Paul Sisson, San Diego Union-Tribune, 29 July 2022 Though the Vatican has been silent on alkaline hydrolysis, some Catholics feel that disposing of effluent is disrespectful. Lauren Oster, Smithsonian Magazine, 27 July 2022 The pathogens and excess nutrients in that effluent can have harmful effects on humans and ecosystems, spelling trouble for anyone or anything downstream. Connor Giffin, The Courier-Journal, 16 June 2022 The district will also conduct ongoing studies of the effluent’s impact on Gilbert Bay, and explore whether managing stormwater surges or occasional outflows to Farmington Bay will benefit the ecosystem and its migrating birds. Leia Larsen, The Salt Lake Tribune, 4 June 2022 Aside from putting septic effluent into Utah’s water supply, the Pacific pipeline is probably the most far-out item on the list. Brian Maffly, The Salt Lake Tribune, 19 May 2022 The effluent is to be released into the soil in 1-foot intervals, rotated through 16 zones. Brian Maffly, The Salt Lake Tribune, 5 May 2022 For example, 29% of wastewater effluent is now reused in the South Coast region, while only 9% of wastewater is recycled in the Bay Area. Ian James, Los Angeles Times, 12 Apr. 2022 See More

Word History

Etymology

Adjective

Latin effluent-, effluens, present participle of effluere to flow out, from ex- + fluere to flow — more at fluid

First Known Use

Adjective

1726, in the meaning defined above

Noun

1859, in the meaning defined above

Time Traveler
The first known use of effluent was in 1726

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