Liquid purification or separation – Structural installation – Geographic
Patent
1994-06-03
1995-07-18
Upton, Christopher
Liquid purification or separation
Structural installation
Geographic
2102571, 210305, 2105321, 210540, 137561A, B01D 2124
Patent
active
054338450
ABSTRACT:
In combination, a flow control bypass basin for receiving rainfall runoff water from a surface, an immiscible liquids separator downstream of the bypass basin, and a drain. The bypass basin passes the initial, dirty and oily, portion of the rainfall runoff to the separator and bypasses subsequent runoff water instead to the drain. The bypass basin includes a tank, an inlet in communication with the tank's interior, a primary outlet from the bypass basin to the separator, and a bypass outlet from the bypass basin to the drain, with the bypass outlet being located a substantial height above the primary outlet. Interposed between the bypass outlet and the interior of the tank is a riser tube having a mouth disposed in the lower portion of the tank and an upper end closed to the interior of the tank but open to the bypass outlet. The bypass outlet is located a certain hydraulic head height above the liquid level in the separator such that all water within the bypass basin above that height is bypassed into the drain. The primary outlet is substantially smaller than the inlet to the bypass basin so that the initial dirty portion of the rainfall runoff is accumulated within the bypass basin's tank. Vent pipes prevent pressure buildup within the bypass basin and siphoning by the riser tube, and a baffle having a upwardly-extending screen prevents trash from flowing from the inlet of the bypass basin to the primary and bypass outlets.
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Greene Boyd B.
Nassif Naji J.
Newberry Tanks & Equipment, Inc.
Upton Christopher
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