WO2021110716A1 - Membrane à canal de perméation intégré - Google Patents

Membrane à canal de perméation intégré Download PDF

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Publication number
WO2021110716A1
WO2021110716A1 PCT/EP2020/084211 EP2020084211W WO2021110716A1 WO 2021110716 A1 WO2021110716 A1 WO 2021110716A1 EP 2020084211 W EP2020084211 W EP 2020084211W WO 2021110716 A1 WO2021110716 A1 WO 2021110716A1
Authority
WO
WIPO (PCT)
Prior art keywords
layers
membrane
fabric layers
fabric
anchor members
Prior art date
Application number
PCT/EP2020/084211
Other languages
English (en)
Inventor
Peter Elisabeth Marcel AERTS
Original Assignee
Blue Foot Membranes Nv
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Blue Foot Membranes Nv filed Critical Blue Foot Membranes Nv
Priority to EP20820085.7A priority Critical patent/EP4069404A1/fr
Publication of WO2021110716A1 publication Critical patent/WO2021110716A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D69/00—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
    • B01D69/10—Supported membranes; Membrane supports
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
    • B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
    • B01D61/027—Nanofiltration
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
    • B01D61/14—Ultrafiltration; Microfiltration
    • B01D61/147—Microfiltration
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D69/00—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
    • B01D69/06—Flat membranes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D69/00—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
    • B01D69/10—Supported membranes; Membrane supports
    • B01D69/107—Organic support material
    • B01D69/1071—Woven, non-woven or net mesh
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2313/00—Details relating to membrane modules or apparatus
    • B01D2313/14—Specific spacers

Definitions

  • the invention generally relates to filtration membranes and their methods of manufacture.
  • Integrated permeate channel membranes have been disclosed in WO 2006 015 461 .
  • the current invention envisages an alternative membrane and an alternative method of production.
  • the resulting membrane can be used in assemblies used for (waste) water treatment.
  • the invention provides a method according to claim 1 , and an integrated permeate channel membrane according to claim 12.
  • two fabric layers each provided with a plurality of anchor members are separately provided with membrane layers.
  • at least a portion of the anchor members is positioned outside the membrane layer.
  • anchor members of respective fabric layers facing each other may interact with each other (when sufficiently close), forming bonds.
  • Separate fabric layers may thus first be provided with a membrane layer. Only subsequently, the fabric layers may be interconnected to form an I PC membrane.
  • two anchor members may only interact when facing each other.
  • two anchor members may only interact when at least one of both is first activated.
  • the invention provides a water filter module according to claim 14, and a use of the integrated permeate channel membrane according to claim 15.
  • Fig. 1 shows an embodiment of a fabric layer.
  • Fig. 2 shows an embodiment of a fabric layer provided with anchor members.
  • Fig. 3A shows an embodiment of a fabric layer provided with anchor members and a membrane layer, in cross-section.
  • Fig. 3B-D show an embodiment of two such fabric layers.
  • Fig. 3D shows an embodiment in which the fabric layers are interconnected to form an I PC membrane.
  • Fig. 4A-E equally show embodiments of two fabric layers, according to several possible embodiments.
  • the present invention concerns a method for manufacturing an I PC membrane, an I PC membrane, a water filter module, and the use of an I PC membrane.
  • a compartment refers to one or more than one compartment.
  • the invention concerns a m ethod for manufacturing an integrated perm eate channel m em brane, said m ethod com prising the steps of: providing a membrane layer to each of a first fabric layer and a second fabric layer, the fabric layers being at least partly embedded in the m em brane layers, and interconnecting said first and second fabric layers parallel to each other.
  • both fabric layers are further provided with a plurality of anchor members, wherein the fabric layers are interconnected and spaced apart via anchor members of the respective fabric layers interacting with each other, form ing bonds.
  • the application of the m embrane layer involves a coating of the fabric layers.
  • a m em brane is cast that penetrates into the fabric and forms a m echanical anchorage with the fabric. This m em brane layer will leave the anchor points free extending for at least a certain distance.
  • at least a portion of the interconnecting members (i.e. the anchor members or anchor points) provided by the first fabric layer is interacting with at least a portion of the interconnecting members provided by the second fabric layer.
  • Anchor members of the two fabrics may or may not be the same.
  • Anchor members provided by the first fabric may be of the first type
  • anchor members provided by the second fabric may be of a second type.
  • the anchor members of the first and second fabric are at least suitable for interacting or for supporting an interaction.
  • said anchor members are distributed over at least an inner surface of the respective fabric layers.
  • said interconnecting step involves bringing the fabric layers together via their inner surfaces.
  • the anchor members are partly embedded in the respective membrane layers, and partly protrude from the membrane layers at said inner surfaces.
  • the anchor members are substantially orthogonal to the respective fabric layers.
  • said anchor members are positioned under an angle to the respective fabric layers.
  • said fabric layers comprise a woven or non- woven fabric.
  • the textile may be a woven or non-woven textile that in the perpendicular direction has anchor points extending from the (non) woven textile surface at one side.
  • the anchor points/members may or may not be partly formed by the textile.
  • the anchor points/members may or may not be integrally formed by the textile.
  • the textile material may be polyester, polypropylene, polyethylene or other weather and chemical resistant fiber.
  • said textile material may include an amount of metallic fibers, composed of metal, metallic alloys, plastic-coated metal, metal-coated plastic, or fibers being covered by a metal layer. Suitable metals include silver, gold, alum inum , ...
  • said fabric layers are made of a 3D printed material wherein the anchor points are part of the 3D printed material or added afterwards.
  • Said fabric layers may be gamma irradiated to reduce the bioburden.
  • Said fabric layers may have pores or openings. The pore size of said pores or openings is preferably comprised between...
  • the respective anchor members each comprise an interaction portion by means of which said anchor members interact chem ically, physically and/or mechanically.
  • the bonding between the anchor points can be any chem ical bond: electrostatic, covalent, hydrogen bonding, van der Waals bonding or melted together, sealed by sealants as there are polyurethane, epoxy, methyl methacrylate or even UV or heat curing adhesives.
  • said interaction may comprise a chem ical bond (e.g. an electrostatic bond, a covalent bond, a hydrogen bond, a Van der Waals bond) .
  • said interaction may comprise a physical bond (e.g. melted or glued together) .
  • said interaction may comprise a mechanical bond (e.g. via a hook-and-loop-type fastener) .
  • the bonding is strong enough to form a stable backflushable/backwashable/backpulsable I PC membrane sandwich with a back wash pressure resistance of > 150 mbar, preferably between 500 and 3000 mbar.
  • said method further comprises the step of activating at least a part of said interaction portions chem ically, physically and/or mechanically.
  • Activation may be performed selectively. That is, some of the anchor members are activated, but not all. Selective “activation” to the anchor points prior, during or after the membrane casting is part of this invention as well.
  • Physical activation may for instance involve magnetizing at least a part of the interaction portions.
  • Chemical activation may for instance involve exciting some of the substances present in the interaction portions.
  • Activation (e.g. electrostatically charging or magnetizing some of the anchor members) may be performed prior, during, or after applying the membrane layers to the fabric layers.
  • said interaction portions have an increased surface area.
  • Said anchor members may have all sorts of shapes and forms suited to be used in the framework of the current invention.
  • said anchor members comprise a substantially T-shaped cross-section.
  • said interaction portions interact to form an interaction layer of increased density, interposed between first and second permeate channels.
  • the invention concerns an integrated permeate channel membrane, comprising: first and second fabric layers, which fabric layers are mutually parallel layers that are interconnected and spaced apart, membrane layers provided to each of said fabric layers, the fabric layers being at least partially embedded in the membrane layers, and a permeate channel interposed between said two membrane layers.
  • the fabric layers are each provided with a plurality of anchor members, wherein the fabric layers are interconnected and spaced apart via anchor members of the respective layers that interact or have interacted with each other, form ing bonds.
  • said integrated permeate channel membrane is obtainable via the method according to the first aspect of the invention. Method of first aspect is preferably suitable for manufacturing the integrated permeate channel membrane of the second aspects. Corresponding features and advantages may or may not apply.
  • the invention concerns a water filter module comprising a plurality of such integrated permeate channel membranes.
  • Applications for the membranes according to the invention are numerous and include MBR, microfiltration, ultrafiltration, membrane distillation, pervaporation, vapour permeation, gas separation, supported liquid membranes and pertraction.
  • the invention concerns the use of such integrated permeate channel membranes, for the treatment of (waste) water.
  • Fig. 1 shows an embodiment of a fabric layer.
  • the fabric layer may comprise a woven or 3D printed textile.
  • Fig. 2 shows an embodiment of a fabric layer provided with anchor members (i.e. anchor points).
  • Fig. 3A shows an embodiment of a fabric layer provided with anchor members and a membrane layer, in cross-section. The membrane layer is casted on and over the textile.
  • Fig. 3B shows how two these coated textiles with the anchor points directed to one another can be assembled.
  • Fig. 3C shows how at least some of the anchor points will form a bond.
  • I n Fig. 3D a sandwich structure with an open integrated permeate channel (I PC) in the center is obtained.
  • I PC open integrated permeate channel
  • Fig. 4A-E equally show embodiments of two fabric layers, according to several possible embodiments.
  • the anchor points can have all sorts of shapes (including T shapes) and forms, can have a large density protruding through the textile (after coating) of the membrane surface. Densities can be as high as 100% in the center (that is, at the level of their interacting portions).
  • an interaction layer of increased density up to 100% is formed by the interaction portions, two integrated permeate channels are formed at either side. See Fig. 4E. In all other cases one open permeate channel is formed.
  • the anchor points may be activated on one side (Fig. 4C) or on both sides (Fig. 4B) to form a bond.
  • the figures further show an I PC sandwich structure with the anchor points that are bond together with a high anchored points density in the center (Fig. 4D) and with a 100% anchored points density in the center (Fig. 4E).
  • the purpose of the I PC structure is to be a permeable substrate, membrane which has a certain porosity and has pores from the micrometer range to the nanometer range.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Water Supply & Treatment (AREA)
  • Nanotechnology (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)

Abstract

Selon un premier aspect, l'invention concerne un procédé de fabrication d'une membrane à canal de perméation intégré, ledit procédé comprenant les étapes de : (i) fourniture d'une couche de membrane à chacune d'une première couche de textile et d'une seconde couche de textile, les couches de textile étant au moins partiellement incorporées dans les couches de membrane, et (ii) liaison entre elles desdites première et seconde couches de textile parallèles l'une à l'autre. En particulier, les deux couches de textile étant en outre pourvues d'une pluralité d'éléments d'ancrage, les couches de textile étant reliées entre elles et espacées par l'intermédiaire d'éléments d'ancrage des couches de textile respectives interagissant l'une avec l'autre, formant des liaisons. Dans d'autres aspects, l'invention fournit une membrane à canal de perméation intégré, un module de filtre à eau, et leur utilisation pour le traitement de l'eau.
PCT/EP2020/084211 2019-12-02 2020-12-02 Membrane à canal de perméation intégré WO2021110716A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP20820085.7A EP4069404A1 (fr) 2019-12-02 2020-12-02 Membrane à canal de perméation intégré

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BE201905855 2019-12-02
BE2019/5855 2019-12-02

Publications (1)

Publication Number Publication Date
WO2021110716A1 true WO2021110716A1 (fr) 2021-06-10

Family

ID=73726794

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2020/084211 WO2021110716A1 (fr) 2019-12-02 2020-12-02 Membrane à canal de perméation intégré

Country Status (2)

Country Link
EP (1) EP4069404A1 (fr)
WO (1) WO2021110716A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023144409A1 (fr) 2022-01-31 2023-08-03 Blue Foot Membranes Nv Structure de membrane de canal de perméat incorporée

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4802982A (en) * 1987-10-01 1989-02-07 Desalination Systems, Inc. Spiral-wound membrane with improved permeate carrier
EP0591117A1 (fr) * 1992-09-28 1994-04-06 Aktiebolaget Electrolux Entretoise entre surfaces membranaires d'un épurateur de fluide et son procédé de fabrication
EP1059114A2 (fr) * 1999-06-08 2000-12-13 Nitto Denko Corporation Module de séparation liquide avec membranes et méthode pour la prépartion du même
WO2002051528A1 (fr) * 2000-12-22 2002-07-04 Osmonics, Inc. Cartouches de filtration a contre-courant
WO2006015461A1 (fr) 2004-08-11 2006-02-16 Vlaamse Instelling Voor Technologisch Onderzoek (Vito) Membrane a canal a permeat integre
WO2009135529A1 (fr) * 2008-05-07 2009-11-12 Agfa-Gevaert Sacs membranaires avec substance membranaire sans soudure, leurs utilisations, unités de filtration à l'intérieur de ceux-ci et procédés de fabrication.
US20110024348A1 (en) * 2008-04-15 2011-02-03 Ulrich Meyer-Blumenroth Filter compound material, method for the production thereof and flat filter elements made of the filter compound material
DE102011122187A1 (de) * 2011-12-27 2013-06-27 InnoWa Membrane GmbH Kissenfiltereinheit

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4802982A (en) * 1987-10-01 1989-02-07 Desalination Systems, Inc. Spiral-wound membrane with improved permeate carrier
EP0591117A1 (fr) * 1992-09-28 1994-04-06 Aktiebolaget Electrolux Entretoise entre surfaces membranaires d'un épurateur de fluide et son procédé de fabrication
EP1059114A2 (fr) * 1999-06-08 2000-12-13 Nitto Denko Corporation Module de séparation liquide avec membranes et méthode pour la prépartion du même
WO2002051528A1 (fr) * 2000-12-22 2002-07-04 Osmonics, Inc. Cartouches de filtration a contre-courant
WO2006015461A1 (fr) 2004-08-11 2006-02-16 Vlaamse Instelling Voor Technologisch Onderzoek (Vito) Membrane a canal a permeat integre
US20110024348A1 (en) * 2008-04-15 2011-02-03 Ulrich Meyer-Blumenroth Filter compound material, method for the production thereof and flat filter elements made of the filter compound material
WO2009135529A1 (fr) * 2008-05-07 2009-11-12 Agfa-Gevaert Sacs membranaires avec substance membranaire sans soudure, leurs utilisations, unités de filtration à l'intérieur de ceux-ci et procédés de fabrication.
DE102011122187A1 (de) * 2011-12-27 2013-06-27 InnoWa Membrane GmbH Kissenfiltereinheit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023144409A1 (fr) 2022-01-31 2023-08-03 Blue Foot Membranes Nv Structure de membrane de canal de perméat incorporée

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Publication number Publication date
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