Abstract

The present disclosure provides a novel spiral wound membrane leaf packet with a unique substantially non-permeable polymeric resin folding area that has desirable physical and chemical resistance to strong cleaning conditions in industrial filtration applications including food or dairy processing, and the method to make and use the spiral wound membrane leaf packet, and a membrane filtration module that include the novel spiral wound membrane leaf packet.

IPC Classes  ?

• B01D 63/10 - Spiral-wound membrane modules
• A23C 9/142 - Milk preparationsMilk powder or milk powder preparations in which the chemical composition of the milk is modified by non-chemical treatment by dialysis, reverse osmosis or ultrafiltration
• A23C 19/028 - Making cheese curd without substantial whey separation from coagulated milk

Abstract

A membrane filter module configured to treat a liquid contained in a tank at an ambient pressure. The module may have a header, with a bundle containing a plurality of substantially vertical hollow fiber membranes, wherein a lower end of each hollow fiber membrane is fixed in the header. The module may also have a gasification device adapted to periodically generate a gaseous bubble and configured to release the gaseous bubble within the bundle. The module may further have an enclosure that substantially surrounds the bundle that extends from a lower region to an upper region of the membrane bundle, wherein the enclosure is configured to retain the liquid introduced into the enclosure such that the liquid surrounds the membrane bundle. The gaseous bubble has a cross-sectional area that corresponds with a cross-sectional area of the enclosure, such that the cross-sectional area of the gaseous bubble occupies substantially the entire cross-sectional area of the enclosure as it flows along the bundle.

IPC Classes  ?

• B01D 63/02 - Hollow fibre modules
• B01D 65/08 - Prevention of membrane fouling or of concentration polarisation
• B01D 63/04 - Hollow fibre modules comprising multiple hollow fibre assemblies
• C02F 3/12 - Activated sludge processes

Abstract

An enclosure assembly configured to receive a plurality of fiber membranes configured to filter fluid may include an elongated tubular member including an elongated wall extending between first and second ends, and a removable hatch coupled to opposing side edges of the elongated wall, thereby forming a hollow enclosure having an interior. The interior of the elongated tubular member may be configured to receive a plurality of fiber membranes configured to filter fluid.

IPC Classes  ?

• B01D 61/20 - AccessoriesAuxiliary operations
• B01D 63/02 - Hollow fibre modules
• B01D 63/04 - Hollow fibre modules comprising multiple hollow fibre assemblies
• B01D 65/00 - Accessories or auxiliary operations, in general, for separation processes or apparatus using semi-permeable membranes
• B01D 65/08 - Prevention of membrane fouling or of concentration polarisation

Abstract

The present invention is directed to a method of sealing the free end of a hollow fiber membrane for use in a single header filtration module by dipping the end of the membrane into a low-viscosity light-curable adhesive and curing the adhesive. The invention further encompasses the resulting sealed hollow fiber membrane with a diameter that is only slightly larger than the diameter of the unsealed membrane.

IPC Classes  ?

• B01D 63/00 - Apparatus in general for separation processes using semi-permeable membranes
• B01D 53/22 - Separation of gases or vapoursRecovering vapours of volatile solvents from gasesChemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols by diffusion
• B01D 59/12 - Separation by diffusion by diffusion through barriers

Abstract

A reinforced filtration cartridge comprises a housing with end fittings secured at each end of the housing, a membrane bundle extending between the end fittings, and a support column extending between the end fittings, with the ends of the support column secured within potting compound dispersed within each of the end fittings.