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AssigneeAqua-Aerobic Systems, Inc.
InventorGordon Astrom
Estimating the term…
A filter cleaning apparatus includes a suction generating assembly having a suction generating nozzle, such as an eductor nozzle. The suction generating nozzle has a nozzle inlet, a nozzle outlet, and a suction port in fluid communication with the filter material. The suction generating assembly also includes a suction member positioned in fluid communication with the suction port and positioned adjacent the influent surface of the filter material. A pump is positioned upstream of the nozzle inlet and in fluid communication, on a suction side, with the filter tank or other liquid source. The pump may be operated to deliver operating fluid from the filter tank so as to pass the operating fluid through the suction generating nozzle in a direction from the nozzle inlet to the nozzle outlet. As a result, liquid in the filter tank is drawn through the filter material in a reverse direction and into the suction member. The liquid stream that results acts to remove filtered solids and biogrowth from the filter material. The liquid stream, filtered solids and biogrowth, are discharged along with the operating fluid through the nozzle outlet.
A disk filter apparatus for filtering suspended solids from liquid influent, the disk filter apparatus comprising:
A method of cleaning filter material in a disk filter, the disk filter including a tank having an inlet for receiving liquid influent and an outlet for filtered effluent, the filter material being supported on a disk-shaped frame inside the tank between the inlet and the outlet and for filtering out suspended solids from liquid passed through the filter material as the liquid flows from the inlet to the outlet, the filter material having an inlet surface and an outlet surface, the cleaning method comprising the steps of:
A cleaning apparatus in a disk filter for removing filtered solids from filter material, wherein the disk filter includes a tank having an inlet for receiving liquid influent and an outlet for filtered effluent, the filter material being supported on a disk-shaped frame inside the tank between the inlet and the outlet and for filtering out suspended solids from liquid passed through the filter material as the liquid flows from the inlet to the outlet, the filter material having an inlet surface and an outlet surface, the cleaning apparatus comprising:
Dependencies are inferred from the claim text.