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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Hydrodynamic separator ： ウィキペディア英語版 Hydrodynamic separator Hydrodynamic separators (HDS) are stormwater management devices that use cyclonic separation to control water pollution. They are designed as flow-through structures with a settling or separation unit to remove sediment and other pollutants.〔United States Environmental Protection Agency. Washington, DC. ("Storm Water Technology Fact Sheet: Hydrodynamic Separators." ) September 1999. Document No. EPA 832-F-99-017.〕 HDS are considered structural best management practices (BMPs), and are used to treat and pre-treat stormwater runoff. == Design and applications == HDS systems use the physics of flowing water to remove a variety of pollutants and are characterized by an internal structure that either creates a swirling vortex or plunges the water into the main sump.〔Mohseni, Omid; Saddoris, David A.; McIntire, Kurtis D.; Gulliver, John S. (2010). ("Hydrodynamic Separator Sediment Retention Testing." ) Technical Report No. MN/RC 2010-10. St. Paul, MN: Minnesota Department of Transportation.〕 Along with supplemental features to reduce velocity, an HDS system is designed to separate floatables (trash, debris and oil) and settleable particles, like sediment, from stormwater. HDS systems are not effective for the removal of very fine solids or dissolved pollutants.〔 The systems are also subject to scour and sediment washout during large storm events, e.g. a 10-year storm.〔 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Hydrodynamic separator」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.