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filtration plants (water treatment plants, water distribution structures, ... Built Environment (hierarchy name)) |
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Note: Facilities that specialize in filtration of water, which is a method of purification that typically passes water through various filtering agents. Water filtration was developed for large scale implementation in 19th-century Germany. In slow-filtration methods, the water is allowed to pass through a deep layer of fine sand. In rapid-filtration plants, the water is treated with a coagulant, such as aluminum sulfate, ferric chloride, or ferric sulfate, which flocculates particles; suspended matter to the bottom in sedimentation tanks and the water is passed at a relatively rapid rate through small beds of coarse sand. Heavily polluted waters may be chlorinated both before and after filtration. Aeration, involving the mixing of air with the water, is carried out if undesirable amounts of iron and manganese are present, since they are held in solution in water only in the absence of oxygen.
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| Terms: |
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| filtration plants (preferred,C,U,LC,English-P,D,U,PN)
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| filtration plant (C,U,English,AD,U,SN)
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| plants, filtration (C,U,English,UF,U,N)
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| waterzuiveringsinstallaties (C,U,Dutch-P,D,U,U)
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| waterzuiveringsinstallatie (C,U,Dutch,AD,U,U)
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| waterzuivering (C,U,Dutch,UF,U,U)
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| waterzuiveringen (C,U,Dutch,UF,U,U)
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| usines de filtration (C,U,French-P,D,U,PN)
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| usine de filtration (C,U,French,AD,U,SN)
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| Filteranlagen (C,U,German,D,PN)
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| Filteranlage (C,U,German-P,AD,SN)
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| plantas de filtramiento (C,U,Spanish-P,D,U,PN)
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| planta de filtramiento (C,U,Spanish,AD,U,SN)
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Facet/Hierarchy Code: V.RK |
Hierarchical Position:
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Objects Facet |
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.... Built Environment (hierarchy name) (G) |
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........ Single Built Works (hierarchy name) (G) |
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............ single built works (built environment) (G) |
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................ <single built works by specific type> (G) |
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.................... <single built works by function> (G) |
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........................ hydraulic structures (G) |
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............................ <hydraulic structures by function> (G) |
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................................ water distribution structures (G) |
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.................................... water treatment plants (G) |
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........................................ filtration plants (G) |
Additional Notes: |
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| German ..... Vorrichtung zum Filtern von Wasser, eine Form der Reinigung, bei dem Wasser mehrere Filterstufen durchläuft. Die Methode der Wasserfilterung wurde in großem Maßstab in Deutschland im 19. Jhdt. entwickelt. Beim langsamem Filtern passiert das Wasser eine tiefe Schicht aus feinem Sand. Beim schnellen Filtern wird das Wasser mit einem Koagulans wie etwa Aluminiumsulfat, Eisenchlorid oder -sulfat behandelt, wodurch Partikel ausflocken. Nachdem derart separierte Stoffe am Boden eines Sedimentationstanks sich sammeln, passiert das Wasser relativ zügig kleine Areale aus grobem Sand. Schwer verunreinigtes Wasser kann vor oder nach dem Filtrierungsprozess mit Chlor behandelt werden. Die Belüftung, also das Vermischen von Luft und Wasser, kann durchgeführt werden, wenn unangenehme Mengen von Eisen oder Mangan vorhanden sind, weil diese Stoffe nur in Abwesenheit von Sauerstoff wasserlöslich sind. |
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