Liquid purification or separation – Diverse distinct separators – Including a filter
Reexamination Certificate
2007-10-23
2007-10-23
Upton, Christopher (Department: 1724)
Liquid purification or separation
Diverse distinct separators
Including a filter
C210S411000, C210S521000, C210S538000, C210S532100
Reexamination Certificate
active
11037417
ABSTRACT:
A retention treatment basin system and method10that handles an influent of combined wastewater and sewer overflows. The influent includes floatable12and settlable solids14. The basin includes a ceiling16. The retention treatment basin has one or more influent channels20that duct the influent into the basin. A weir assembly22extends upwardly from the floor, over which the influent flows. A cell24receives the influent passing over the weir. At least some of the settlable solids are retained in the cell. A baffle26traps at least some of the floatable solids in the cell. Part of the influent passes under the baffle. One or more up-flow screen systems28with bars having a triangular cross-section extend from the baffle that are pervious to fluids for receiving the influent and arresting movement of floatable solids therethrough. The screen system creates a floatable-solids depleted effluent.
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Brooks & Kushman P.C.
Hubbell, Roth & Clark
Upton Christopher
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