Sludge filtration apparatus and filter assembly thereof
AssigneeMetawater Co., Ltd.
InventorsKoji Yoshida, Mikimasa Yamaguchi
Life of this patent
Estimating the term…
Abstract
A sludge filtration apparatus has a sludge tank configured to store sludge and at least one filter assembly. The filter assembly includes a filtration membrane for filtering the sludge and a pipe insertable in the filtration membrane to supply air to a secondary side of the filtration membrane for dislodging the sludge from the filtration membrane. The pipe has a plurality of holes for discharging gas, namely air, to an area in which the filtration membrane inclines downwardly with the secondary side thereof. The sludge filtration apparatus can prevent thickened sludge from remaining in an upper portion of the filter assembly.
Claims13
A sludge filtration apparatus comprising:
- an air compressor;
- a sludge tank configured to store sludge;
- and
- at least one filter assembly,
- wherein the filter assembly includes a filtration membrane that filters the sludge and a pipe having a plurality of holes, all of the holes provided on the pipe being positioned to confront the filtration membrane to supply air to a secondary side of the filtration membrane and dislodge the sludge from the filtration membrane,
- wherein the air compressor introduces air to the pipe,
- wherein the filtration membrane has an inclined area at an upper portion thereof, and
- wherein all of the holes are situated at the inclined area so that all of the holes on the pipe are directed upwardly to allow air to be discharged generally upwardly above the inclined area and emit air upwardly.
A filter assembly for a sludge filtration apparatus, the filter assembly comprising:
- an air compressor;
- a filtration membrane that filters sludge;
- and
- a pipe having a plurality of holes, all of the holes provided on the pipe are positioned to confront the filtration membrane to supply air to a secondary side of the filtration membrane and dislodge the sludge from the filtration membrane,
- wherein the air compressor introduces air into the pipe,
- wherein the filtration membrane has an inclined area at an upper portion thereof, and
- wherein all of the holes are situated at the inclined area so that all of the holes provided on the pipe are directed upwardly to allow air to be discharged upwardly above the inclined area and emit air upwardly.
Dependencies are inferred from the claim text.