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soil filter

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  • Soil — For other uses, see Soil (disambiguation). A represents soil; B represents laterite, a regolith; C represents saprolite, a less weathered regolith; the bottommost layer represents bedrock …   Wikipedia

  • filter — 01. We have decided to buy a water [filter] for our tap at home in order to be sure our drinking water is clean. 02. Some whales eat by [filtering] water through their mouths, and swallowing the small animals that are trapped by a structure known …   Grammatical examples in English

  • Lunar soil — Moondust redirects here. For the Commodore 64 video game, see Moondust (video game). For the Psychoactive drug, see Phencyclidine. Bootprint on lunar soil …   Wikipedia

  • Clay pot filter — The clay pot filter purifies water by passing it through the pores of a ceramic which has been fired in an open dung fire. These filters, intended to be affordable for developing countries, were developed by an Australian materials scientist and… …   Wikipedia

  • Lava filter — A lava filter is a biological filter that uses lavastone pebbles as support material on which microorganisms can grow in a thin biofilm. [ [http://www.stowa selectedtechnologies.nl/Sheets/Sheets/Lava.Filters.html Overview of lavafilters] ] This… …   Wikipedia

  • Sand filter — Sand filters are used for water purification. There are three main types; # rapid (gravity) sand filters # upflow sand filters # slow sand filters All three methods are used extensively in the water industry throughout the world. The first two… …   Wikipedia

  • 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

  • Drainage — See also: Storm drain and Stormwater Deep inside a Sydney drain in New South Wales Drainage is the natural or artificial removal of surface and sub surface water from an area. Many agricultural soils need drainage to improv …   Wikipedia

  • Olefin fiber — is a synthetic fiber made from a polyolefin, such as polypropylene or polyethylene. It is used in wallpaper, ropes, and vehicle interiors. Olefin s advantages are its strength, colourfastness and comfort, stain, mildew, abrasion and sunlight… …   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

  • Harbhajan Singh — Infobox cricketer biography playername = Harbhajan Singh female = country = India fullname = Harbhajan Singh nickname = Bhajji , The Turbanator (English language media) living = true dayofbirth = 3 monthofbirth = 7 yearofbirth = 1980 placeofbirth …   Wikipedia

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