Apparatus and methods for collecting and transferring solids separated from waste water
OwnerGeorge E. Wilsoninventor
Life of this patent
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Abstract
A method of collecting and transferring settling solids that are being settled from raw surface water or wastewater includes collecting settling solids and applying first and second upward flows to the settling solids. The solids are collected in a chamber having a bottom surface and a surrounding side surface. The first upward flow is applied to the solids from a point adjacent the bottom surface. The second upward flow is a suction flow applied at a point above the first upward flow. The first and second flows urge the settling grit upward and out of the chamber through a passageway.
Claims19
A method of transferring settling solids that are undergoing separation from raw surface water or wastewater, comprising:
- collecting settling solids in an area having at least a bottom surface and a surrounding side surface;
- applying a first flow to the collecting solids in an upward direction from a point adjacent the bottom surface;
- and
- applying a second flow to the collecting solids, the second flow being a suction flow applied in the upward direction at a point above the first flow through a passageway leading out of the area;
- whereby the first and second flows urge settling grit upward and out of the area through the passageway.
An apparatus for collecting and transferring grit that is being separated from raw surface water or wastewater, comprising:
- a first passageway terminating in an outlet end with a nozzle positioned to direct a flow of pressurized fluid within the passageway upward through a bottom surface of an area where the grit is being collected;
- and
- a second passageway having an inlet end spaced above the outlet end of the first passageway, the second passageway being connected to a source of suction pressure to exert an upward flow at the outlet end and to receive grit and treated influent.
An apparatus for separating grit from raw surface water or wastewater and transferring the separated grit, comprising:
- a separation apparatus into which influent containing grit is fed and at least a portion of the grit is separated, the resulting effluent being channeled away from the separation apparatus;
- and
- a grit collection and transfer apparatus positioned to receive the separated grit at a level below the separation apparatus, the grit collection and transfer apparatus having a nozzle through which a first flow of pressurized fluid is applied against the separated grit and a passageway spaced above and aligned with the nozzle through which a second, suction flow is applied in a generally common direction as the first flow to draw treated influent and grit into the passageway for transfer from the apparatus.
Dependencies are inferred from the claim text.