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Ranney collector : ウィキペディア英語版 | Ranney collector
A Ranney collector is a patented type of radial well used to extract water from an aquifer with direct connection to a surface water source like a river or lake. The amount of water available from the collector is typically related more to the surface water source than to the piezometric surface of the aquifer. ==Description== A caisson is constructed into sand or gravel below the surface level of an adjacent river or lake.〔 Screened conduits are extended horizontally from ports in the caisson about 60 meters (200 feet) into surrounding water-bearing alluvium. The radial arrangement of screens forms a large infiltration gallery with a single central withdrawal point.〔 A single collector may produce as much as 25 million gallons per day.〔 Bank filtration of water through aquifer soils may reduce water treatment requirements.〔
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「Ranney collector」の詳細全文を読む
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