percolation bed
Смотреть что такое "percolation bed" в других словарях:
Fluidized bed — For other uses, see Fluidized bed (disambiguation). Oldest power station utilizing circular fluidized bed technology, in Lünen, Germany A fluidized bed is formed when a quantity of a solid particulate substance (usually present in a holding… … Wikipedia
river — river1 riverless, adj. riverlike, adj. /riv euhr/, n. 1. a natural stream of water of fairly large size flowing in a definite course or channel or series of diverging and converging channels. 2. a similar stream of something other than water: a… … Universalium
glacier — glaciered, adj. /glay sheuhr/, n. an extended mass of ice formed from snow falling and accumulating over the years and moving very slowly, either descending from high mountains, as in valley glaciers, or moving outward from centers of… … Universalium
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
hydrosphere — /huy dreuh sfear /, n. the water on or surrounding the surface of the globe, including the water of the oceans and the water in the atmosphere. [1885 90; HYDRO 1 + SPHERE] * * * Discontinuous layer of water at or near the Earth s surface. It… … Universalium
Outhouse — This article is about a type of building or structure used primarily as a toilet . For other uses, see Outhouse (disambiguation). An outhouse at Goat Peak, 6,305 ft (1,922 m) above sea level An outhouse is a small structure separate from a main… … Wikipedia
Gaz de couche — Le « gaz de couche » parfois dit « gaz de houille » (expression qui a aussi un autre sens pour les francophones) ou gaz de charbon, est un gaz, principalement constitué de méthane, qui est piégé (adsorbé) au cœur de la matrice… … Wikipédia en Français
Constructed wetland — Vertical Flow type of Constructed Wetlands A constructed wetland or wetpark is an artificial wetland, marsh or swamp created as a new or restored habitat for native and migratory wildlife, for anthropogenic discharge such as wastewater,… … 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
sedimentary rock — Rock formed at or near the Earth s surface by the accumulation and lithification of fragments of preexisting rocks or by precipitation from solution at normal surface temperatures. Sedimentary rocks can be formed only where sediments are… … Universalium
Dye 3 — is an ice core site and previously part of the Distant Early Warning (DEW) line, located at (65°11′N 43°49′W / 65.183°N 43.817°W / 65.183; 43.817 ( … Wikipedia
