B - Operations – Transporting – 01 – D
Patent
B - Operations, Transporting
01
D
B01D 21/26 (2006.01)
Patent
CA 2485696
Runoff water from parking lots and filling stations is cleaned by first passing it via an inlet pipe tangentally into a vortex chamber where the swirling action helps to separate the contaminants from the water. Floating contaminants are stored in the vortex chamber, trapped at the top of the chamber by the roof of that chamber and at the lower part of the chamber by a skirt which is part of the chamber and extends downwardly for a limited distance from the inlet pipe. That roof has an access opening to permit removal of the floating contaminants, The body o~ the fluid thereafter moves downward into a settling chamber where heavier-than-water contaminants settle to the bottom where they can be removed during regular cleaning. As the fluid in the settling chamber builds up it passes through clearing screens to a clean water outlet. A by-pass overflow pipe to process very large volumes of water extends upward from the settling chamber and ultimately feeds the outlet pipe. Each screen may have louvers projecting from the screen for preventing contaminants from blocking the screen.
Meyermann Austin
Nexus Law Group Llp
Pank Thomas E.
LandOfFree
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