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aeration bed

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  • Reed bed — Reed beds are a natural habitat found in floodplains, waterlogged depressions and estuaries. Reed beds are part of a succession from young reed colonising open water or wet ground through a gradation of increasingly dry ground. As reed beds age,… …   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

  • agricultural technology — Introduction       application of techniques to control the growth and harvesting of animal and vegetable products. Soil preparation       Mechanical processing of soil so that it is in the proper physical condition for planting is usually… …   Universalium

  • Biointensive — The biointensive method is an organic agricultural system which focuses on maximum yields from the minimum area of land, while simultaneously improving the soil. The goal of the method is long term sustainability on a closed system basis. It has… …   Wikipedia

  • 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

  • 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

  • Fish farming — Intensive koi aquaculture facility in Israel Fish farming is the principal form of aquaculture, while other methods may fall under mariculture. Fish farming involves raising fish commercially in tanks or enclosures, usually for food. A facility… …   Wikipedia

  • Industrial wastewater treatment — covers the mechanisms and processes used to treat waters that have been contaminated in some way by anthropogenic industrial or commercial activities prior to its release into the environment or its re use.Most industries produce some wet waste… …   Wikipedia

  • beer — /bear/, n. 1. an alcoholic beverage made by brewing and fermentation from cereals, usually malted barley, and flavored with hops and the like for a slightly bitter taste. 2. any of various beverages, whether alcoholic or not, made from roots,… …   Universalium

  • Beer — /bear/, n. Thomas, 1889 1940, U.S. author. * * * I Alcoholic beverage made usually from malted barley, flavoured with hops, and brewed by slow fermentation. Known from ancient times, beer was especially common in northern climates not conducive… …   Universalium

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