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filtration beds

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  • Natural pool — This German swimming pond highlights how NSPs can be designed to resemble a part of the surrounding environs …   Wikipedia

  • Green roof — Traditional sod roofs can be seen in many places in the Faroe Islands …   Wikipedia

  • Farlington, Portsmouth — Farlington is a district of Portsmouth. It is located in the north east of the city and is not actually on Portsea Island. Farlington was incorporated into the city in 1932 and now forms a continuous development with Cosham and Drayton.Farlington …   Wikipedia

  • seepage — /see pij/, n. 1. the act or process of seeping; leakage. 2. something that seeps or leaks out. 3. a quantity that has seeped out. [1815 25; SEEP + AGE] * * * ▪ geology       in soil engineering, movement of water in soils, often a critical… …   Universalium

  • 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

  • Slow sand filter — Slow sand filters are used in water purification for treating raw water to produce a potable product. They are typically 1 to 2 metres deep, can be rectangular or cylindrical in cross section and are used primarily to treat surface water. The… …   Wikipedia

  • Filter (aquarium) — Aquarium filters are critical components of both freshwater and marine aquaria.cite book |last=Riehl |first=Rüdiger. Editor. |coauthors=Baensch, HA |title=Aquarium Atlas |year=1996. 5th Edn. |publisher=Tetra Press |location=Germany |isbn=3 88244… …   Wikipedia

  • renal system — ▪ anatomy Introduction  in humans (human body), organ system that includes the kidneys, where urine is produced, and the ureters, bladder, and urethra for the passage, storage, and voiding of urine.       In many respects the human excretory, or… …   Universalium

  • Reef aquarium — See also: Marine aquarium Reef aquarium in Monaco A reef aquarium or reef tank is an marine aquarium that prominently displays live corals and other marine invertebrates as well as fish that play a role in maintaining the coral reef environment.… …   Wikipedia

  • Angiotensin — causes blood vessels to constrict, and drives blood pressure up. It is part of the renin angiotensin system, which is a major target for drugs that lower blood pressure. Angiotensin also creates aldosterone, which causes the tubules of the… …   Wikipedia

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