Aeration system for liquid-filtration membrane module
OwnerHamid RABIEinventor
Life of this patent
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Abstract
A pulse aeration system for an immersed membrane filtration system is provided. The aeration system includes a housing defining chambers, and a gas feed conduit. Each chamber includes a riser conduit having a barrier to release gas up the riser conduit when a gas level in the chamber reached below the barrier, for release of the gas into the tank so as to defoul at least one hollow-fiber membrane or flat sheet membrane in the tank. Each chamber has a bottom that is open to permit retentate in each chamber. The housing includes a first wall defining a gas inlet aperture into each chamber. The gas inlet aperture is positioned at an elevation that is within 3 cm of a bottom edge of the barrier. The gas feed conduit is in fluid communication with the first wall gas inlet apertures.
Claims13
A pulse aeration system for an immersed membrane filtration system for mounting in a tank, the aeration system comprising:
- a chamber housing defining a plurality of chambers, each chamber including a riser conduit having a barrier positioned at a selected level in the chamber so as to release gas up the riser conduit when a gas level in the chamber reached below the barrier, for release of the gas into the tank so as to defoul at least one hollow-fiber membrane or flat sheet membrane in the tank,
- wherein each of the plurality of chambers has a bottom that is open to permit retentate from the tank to be present in each of the plurality of chambers,
- wherein the chamber housing includes a first wall defining at least one first wall gas inlet aperture into each of the plurality of chambers, the at least one first wall gas inlet aperture being positioned at an elevation that is within 3 cm of a bottom edge of the barrier;
- and
- a gas feed conduit in fluid communication with the at least one first wall gas inlet aperture for each chamber.
Dependencies are inferred from the claim text.