Distribution and collection headers for a filter bed

Details Distribution and collection headers for a filter bed Distribution and collection headers for a filter bed

2008-03-11

2008-03-11

Popovics, Robert James (Department: 1724)

Liquid purification or separation

Particulate material type separator, e.g., ion exchange or...

With rehabilitation means

C210S279000, C210S456000, C210S787000, C210S793000

Reexamination Certificate

active

10492823

ABSTRACT:
A filtration vessel has an inlet for inflow into the filtration vessel of liquid media to be filtered, a body of filter media in the filtration vessel, and a drain to receive filtered liquid media for take off from the filtration vessel. The inlet is configured to induce rotating flow about the vessel of unfiltered liquid present in the vessel; and/or, the drain is configured in backwash mode to force backwash liquid through the filter media in rotating flow about the vessel; and/or the drain includes drain limbs inclined to the horizontal and providing for draining of filtered liquid along the inclined limbs to outlet.

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