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In the context of a thermal power station and other industrial facilities, the output of the cooling system may be referred to as the effluent cooling water, which is noticeably warmer than the environment and is called thermal pollution. [9]: 375 In chemical engineering practice, effluent is the stream exiting a chemical reactor. [10]
A losing stream, disappearing stream, influent stream or sinking river is a stream or river that loses water as it flows downstream. The water infiltrates into the ground recharging the local groundwater , because the water table is below the bottom of the stream channel.
Effluent Guidelines currently control pollution at approximately 40,000 facilities that discharge directly to the nation's waters, 129,000 facilities that discharge to POTWs, and construction sites. Effluent Guidelines are implemented in water discharge permits issued to facilities through the National Pollutant Discharge Elimination System ...
Wastewater streams include flue-gas desulfurization, fly ash, bottom ash and flue gas mercury control. Plants with air pollution controls such as wet scrubbers typically transfer the captured pollutants to the wastewater stream. [18] Ash ponds, a type of surface impoundment, are a widely used treatment technology at coal-fired plants.
Sewage treatment (or domestic wastewater treatment, municipal wastewater treatment) is a type of wastewater treatment which aims to remove contaminants from sewage to produce an effluent that is suitable to discharge to the surrounding environment or an intended reuse application, thereby preventing water pollution from raw sewage discharges. [2]
Effluent pumping systems have pipes that are buried at a constant depth, such as a metre and a half, and rely on pumping stations that create pressure to move the waste to a treatment facility. An effluent sewer that uses gravity may be called a septic tank effluent gravity (STEG) system, while a pumping system may be called a septic tank ...
BOD values in the pond effluent are lower than in the influent, reflecting the removal of organic matter. This pond biome uses organic matter from the wastewater as food. [citation needed] Nutrients are converted to cell material and energy for life processes including reproduction and growth of living cells.
Rocky stream in Italy Frozen stream in Enäjärvi, Pori, Finland Stream near Montriond in south-eastern France Aubach (Wiehl) in North Rhine-Westphalia, Germany. A stream is a continuous body of surface water [1] flowing within the bed and banks of a channel. Depending on its location or certain characteristics, a stream may be referred to by a ...