Liquid purification or separation – Structural installation – Geographic
Patent
1997-01-13
1998-05-05
Upton, Christopher
Liquid purification or separation
Structural installation
Geographic
210254, 2105321, 210538, C02F 140
Patent
active
057469113
ABSTRACT:
The oil is separated from the rainwater that runs off of a parking lot or off of the pavement of a filling station. An inlet tank receives the runoff water. When the water is entering that tank at a very low rate, the surface water and/or oil in the inlet tank drains to a main separation tank where the oil floats on clean water. That clean water is fed to an outlet conduit that feeds unpolluted water to the city sewer or to a river. When the inlet flow increases to an intermediate rate, a pipe of inverted L-shape feeds clean water from the inlet tank to the outlet conduit. When the inlet fluid has a very large flow rate, as might occur during a heavy downpour of rain, the fluid level in the inlet tank rises to a level at which there is a direct overflow into the outlet conduit.
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Hall William D.
Upton Christopher
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