Dissolved air flotation — (DAF) is a water treatment process that clarifies wastewaters (or other waters) by the removal of suspended matter such as oil or solids. The removal is achieved by dissolving air in the water or wastewater under pressure and then releasing the… … Wikipedia
Donora, Pennsylvania — Donora redirects here. For the indie rock band, see Donora (band). Coordinates: 40°10′33″N 79°51′41″W / 40.17583°N 79.86139°W … Wikipedia
U.S. Steel — United States Steel Corporation Type Public Traded as NYSE: X Industry … Wikipedia
environmental works — ▪ civil engineering Introduction infrastructure that provides cities and towns with water supply, waste disposal, and pollution control services. They include extensive networks of reservoirs, pipelines, treatment systems, pumping stations … Universalium
Sewage treatment — The objective of sewage treatment is to produce a disposable effluent without causing harm to the surrounding environment, and also prevent pollution.[1] Sewage treatment, or domestic wastewater treatment, is the process of removing contaminants… … Wikipedia
Concentrated Animal Feeding Operations — CAFO for cattle Sw … Wikipedia
Aerobic treatment system — An aerobic treatment system or ATS, often called (incorrectly) an aerobic septic system is a small scale sewage treatment system similar to a septic tank system, but which uses an aerobic process for digestion rather than just the anaerobic… … Wikipedia
POLLUTION — Bien que d’usage banal à l’heure actuelle, le terme de pollution recouvre des acceptions fort diverses et qualifie une multitude d’actions qui dégradent d’une façon ou d’une autre le milieu naturel. Certes, le vocable désigne sans ambiguïté les… … Encyclopédie Universelle
Trickling filter — A trickling filter consists of a fixed bed of rocks, gravel, slag, polyurethane foam, sphagnum peat moss, or plastic media over which sewage or other wastewater flows downward and causes a layer or film of microbial slime to grow, covering the… … Wikipedia
Aeroponics — is the process of growing plants in an air or mist environment without the use of soil or an aggregate medium. Aeroponic culture differs from both hydroponics and in vitro (Plant tissue culture) growing. Unlike hydroponics, which uses water as a… … Wikipedia
EAU - Approvisionnement et traitement — L’approvisionnement en eau d’un individu ou d’une collectivité implique la découverte d’un gîte (ressource), la mobilisation de l’eau (captage), son transport (adduction), sa distribution (réseau public, plomberie domestique), enfin sa… … Encyclopédie Universelle