Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • B01D—SEPARATION
  • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
  • B01D53/34—Chemical or biological purification of waste gases
  • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
  • B01D53/86—Catalytic processes
  • B01D53/88—Handling or mounting catalysts
  • B01D53/885—Devices in general for catalytic purification of waste gases
• • C—CHEMISTRY; METALLURGY
  • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • C02F1/00—Treatment of water, waste water, or sewage
  • C02F1/30—Treatment of water, waste water, or sewage by irradiation
  • C02F1/32—Treatment of water, waste water, or sewage by irradiation with ultraviolet light
  • C02F1/325—Irradiation devices or lamp constructions
• • C—CHEMISTRY; METALLURGY
  • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • C02F1/00—Treatment of water, waste water, or sewage
  • C02F1/72—Treatment of water, waste water, or sewage by oxidation
  • C02F1/725—Treatment of water, waste water, or sewage by oxidation by catalytic oxidation
• • C—CHEMISTRY; METALLURGY
  • C03—GLASS; MINERAL OR SLAG WOOL
  • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
  • C03C19/00—Surface treatment of glass, not in the form of fibres or filaments, by mechanical means
• • C—CHEMISTRY; METALLURGY
  • C03—GLASS; MINERAL OR SLAG WOOL
  • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
  • C03C25/00—Surface treatment of fibres or filaments made from glass, minerals or slags
  • C03C25/10—Coating
  • C03C25/104—Coating to obtain optical fibres
  • C03C25/106—Single coatings
• • C—CHEMISTRY; METALLURGY
  • C03—GLASS; MINERAL OR SLAG WOOL
  • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
  • C03C25/00—Surface treatment of fibres or filaments made from glass, minerals or slags
  • C03C25/10—Coating
  • C03C25/465—Coatings containing composite materials
  • C03C25/47—Coatings containing composite materials containing particles, fibres or flakes, e.g. in a continuous phase
• • C—CHEMISTRY; METALLURGY
  • C03—GLASS; MINERAL OR SLAG WOOL
  • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
  • C03C25/00—Surface treatment of fibres or filaments made from glass, minerals or slags
  • C03C25/66—Chemical treatment, e.g. leaching, acid or alkali treatment
  • C03C25/68—Chemical treatment, e.g. leaching, acid or alkali treatment by etching
• • G—PHYSICS
  • G02—OPTICS
  • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
  • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
  • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
  • G02B6/0005—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being of the fibre type
  • G02B6/001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being of the fibre type the light being emitted along at least a portion of the lateral surface of the fibre
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • B01D—SEPARATION
  • B01D2255/00—Catalysts
  • B01D2255/80—Type of catalytic reaction
  • B01D2255/802—Photocatalytic
• • C—CHEMISTRY; METALLURGY
  • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • C02F2201/00—Apparatus for treatment of water, waste water or sewage
  • C02F2201/32—Details relating to UV-irradiation devices
  • C02F2201/322—Lamp arrangement
  • C02F2201/3224—Units using UV-light guiding optical fibers
• • C—CHEMISTRY; METALLURGY
  • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • C02F2305/00—Use of specific compounds during water treatment
  • C02F2305/10—Photocatalysts
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
  • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
  • Y02W10/00—Technologies for wastewater treatment
  • Y02W10/30—Wastewater or sewage treatment systems using renewable energies
  • Y02W10/37—Wastewater or sewage treatment systems using renewable energies using solar energy
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
  • Y10T442/20—Coated or impregnated woven, knit, or nonwoven fabric which is not [a] associated with another preformed layer or fiber layer or, [b] with respect to woven and knit, characterized, respectively, by a particular or differential weave or knit, wherein the coating or impregnation is neither a foamed material nor a free metal or alloy layer
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
  • Y10T442/20—Coated or impregnated woven, knit, or nonwoven fabric which is not [a] associated with another preformed layer or fiber layer or, [b] with respect to woven and knit, characterized, respectively, by a particular or differential weave or knit, wherein the coating or impregnation is neither a foamed material nor a free metal or alloy layer
  • Y10T442/2861—Coated or impregnated synthetic organic fiber fabric
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
  • Y10T442/20—Coated or impregnated woven, knit, or nonwoven fabric which is not [a] associated with another preformed layer or fiber layer or, [b] with respect to woven and knit, characterized, respectively, by a particular or differential weave or knit, wherein the coating or impregnation is neither a foamed material nor a free metal or alloy layer
  • Y10T442/2861—Coated or impregnated synthetic organic fiber fabric
  • Y10T442/2893—Coated or impregnated polyamide fiber fabric
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
  • Y10T442/20—Coated or impregnated woven, knit, or nonwoven fabric which is not [a] associated with another preformed layer or fiber layer or, [b] with respect to woven and knit, characterized, respectively, by a particular or differential weave or knit, wherein the coating or impregnation is neither a foamed material nor a free metal or alloy layer
  • Y10T442/2861—Coated or impregnated synthetic organic fiber fabric
  • Y10T442/291—Coated or impregnated polyolefin fiber fabric
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
  • Y10T442/20—Coated or impregnated woven, knit, or nonwoven fabric which is not [a] associated with another preformed layer or fiber layer or, [b] with respect to woven and knit, characterized, respectively, by a particular or differential weave or knit, wherein the coating or impregnation is neither a foamed material nor a free metal or alloy layer
  • Y10T442/2861—Coated or impregnated synthetic organic fiber fabric
  • Y10T442/291—Coated or impregnated polyolefin fiber fabric
  • Y10T442/2918—Polypropylene fiber fabric
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
  • Y10T442/30—Woven fabric [i.e., woven strand or strip material]
  • Y10T442/3049—Including strand precoated with other than free metal or alloy

Definitions

• a depolluting textile web can be used both in an open space loaded with carbon dioxide or other organic particles suspended in the air. It can also be used in a sewage treatment or wastewater treatment plant to depollute water flowing tangentially with respect to the textile web and / or through the interstices of the textile web at the intersections of the threads constituting it. .
• the textile plies for cleaning a fluid by means of glass fabrics or optical guides are illuminated laterally by natural sunlight.
• the glass fibers used in accordance with the teachings of this document can capture the light emitted by the sun and convey it to activate photocatalytic particles present in the fabric.
• a first object of the invention is to improve the efficiency of the photo-catalysis reaction by using an auxiliary light source and able to activate the photo-catalytic particles reported on the textile web.
• optical fibers grouped according to a sheet of optical fibers woven between them.
• These optical fibers are treated and have invasive alterations, such as notches or small slits, so that emit light laterally by activating photocatalytic particles deposited on the outer surface of these fibers.
• a second objective is to limit the number of optical fibers so as to reduce the cost of manufacture and the size of a pollution control system.
• the particles can be deposited at the invasive alterations of the optical fibers and reflect the light without being activated in contact with the surrounding environment to be cleaned.
• Another object of the invention is therefore to position the photocatalytic particles as close as possible to the invasive alterations without adversely affecting the lateral emission of light by the optical fibers.
• the invention therefore relates to a textile ply comprising optical fibers in warp and / or weft woven with warp and weft threads, the optical fibers being able to emit light laterally.
• the textile web is characterized in that the binding threads comprise on their surface photocatalytic particles, and in that the optical fibers comprise invasive alterations, the free ends of the optical fibers being capable of being arranged facing a light source to transmit light and emit light laterally at the level of the alterations to activate the photo-catalytic particles.
• the photo-catalytic particles are activated by a radiation which may be of the ultraviolet type, via optical fibers capable of distributing the light in a distributed manner inside the textile web.
• binding threads makes it possible to form a filter whose filtration fineness is a direct function of the weaving mode of the textile web comprising the binding yarns and not only of the number of optical fibers used. Indeed, the fluid to be filtered can pass through this sheet by preventing, for example, the passage of macro-particles.
• the invasive alterations made in the optical fibers to emit the light laterally can be carried out in various ways, and in particular by sanding, etching or melting processes by means of high intensity light radiation such as a laser.
• sanding, etching or melting processes by means of high intensity light radiation such as a laser.
• high intensity light radiation such as a laser.
• such invasive alterations can also be achieved by many other mechanical or chemical processes.
• the light sources intended to illuminate the free ends of the optical fibers may be of different types, and in particular be in the form of light-emitting diodes or of extended sources such as incandescent lamps, fluorescent tubes or discharge tubes incorporating a gas. such as neon.
• the light source may comprise a collector capable of focusing in a specific or linear manner the solar natural light in the direction of at least one free end of optical fiber.
• the invasive alterations of the optical fibers can be distributed progressively over the surface of the textile web. Indeed, so as to achieve homogeneous illumination of the textile web, and therefore uniform homogeneous activation of photocatalytic particles over the entire textile area, the surface density or the size of the alterations may vary from one zone to the other. other of the tablecloth. In general, near the light source, the surface density of the alterations is low, whereas it increases the more one moves away from the source.
• the photo-catalytic particles can be reported in different ways on the various components of the textile web.
• a coating layer incorporating photocatalytic particles may be deposited on the binding yarns before these yarns are woven with the optical fibers.
• the optical fibers are devoid of photocatalytic particles and only allow light to be conveyed at the level of the binding yarns to which the photocatalytic particles are attached.
• a coating layer incorporating photocatalytic particles may be deposited on the fabric formed by the optical fibers associated with the binding wires.
• the photo-catalytic particles are embedded in the coating layer of the coated textile web, having a permeability to gases or liquids to be cleaned.
• This coating layer may be deposited in various ways, including bathing, padding, emulsion, spraying, printing, encapsulation, electrodeposition.
• the optical fibers may be punctually woven with the binding yarns, the optical fibers being substantially positioned in a plane parallel to the plane defined by the binding yarns on which the coating layer is deposited.
• the coating layer is not deposited on the optical fibers, but only on one of the faces of the web formed by the binding son.
• the binding yarns covering the coating layer make it possible to produce a protective screen for the optical fibers located in an offset parallel plane.
• the binding threads can be woven in a linen-type weave. Indeed, this type of armor provides the textile web optimum mechanical strength and surface uniformity
• the optical fibers may comprise a core formed in a material chosen from the group comprising polymethyl methacrylate (PMMA), polycarbonate (PC) and cycloolefins (COP).
• PMMA polymethyl methacrylate
• PC polycarbonate
• COP cycloolefins
• the optical fibers are made of two materials and have a core covered with a sheath which can be of different types.
• the optical fibers can be formed in a material chosen from the group comprising glass, quartz and silica.
• a sheath can come to cover the optical fibers to protect them or to bring the photo-catalytic particles onto the textile web.
• the binding threads may be formed from a material chosen from the group comprising polyamide, polyester, polyethylene and polypropylene.
• the photo-catalytic particles may be formed in a material selected from the group consisting of semiconducting substances in the form of titanium oxides, silica, zinc, cesium, zirconium, tin and sulfides of cadmium and zinc.
• the invention also relates to a complex comprising a textile web as previously described.
• a complex is characterized in that the textile web is attached to a nonwoven support capable of reflecting the light emitted by the optical fibers of the textile web.
• a nonwoven makes it possible to generate a screen for reflecting and diffusing the light emitted by the optical fibers and deflecting the light rays towards the photocatalytic particles. In this way, it is possible to increase the activation efficiency of the photocatalytic particles.
• the nonwoven support of the complex may comprise a coating layer also incorporating photo-catalytic particles arranged on at least one face of the support facing the optical fibers of the textile web.
• optical fibers between, on the one hand, the nonwoven support and, on the other hand, binding yarns offset in a parallel plane, these two elements being both covered, on at least their facing the optical fibers, a coating layer having photocatalytic particles.
• FIG. perspective view of a textile web according to the invention
• FIGS. 2 to 4 show in section various alternative embodiments of such a textile sheet, in accordance with the invention
• Figure 5 is a sectional view of a complex incorporating a textile web, according to the invention.
• the invention relates to a textile web as represented in FIG. 1.
• This textile web (1) incorporates optical fibers (2) arranged in warp and / or weft woven with binding threads (3) arranged in a chain and a frame.
• optical fibers (2) are processed so as to transmit the light and emit laterally at their cylindrical outer surface. This treatment of the optical fibers (2) then generate on their surface a plurality of invasive alterations.
• one or more light sources (7) are positioned facing the free ends (6) of the optical fibers (2) grouped or not in bundles.
• the light emitted laterally by the optical fibers (1) can be transmitted on either side of the textile web (1) perpendicularly to each of these faces, but also inside the textile web.
• This arrangement activates photo-catalytic particles reported on one of the components of the textile web.
• the optical fibers (2) have invasive alterations (5) making it possible to modify the angle of reflection of the light rays inside the fiber and to transmit the light laterally outside the fiber. the fiber.
• the photo-catalytic particles (4) are reported in a coating layer (23) at the binding yarns (13) before being woven with the optical fibers.
• the optical fibers (3) thus make it possible to convey the light to the binding wires (13).
• the photocatalytic particles (4) can also be reported in a coating layer (14) attached to the fabric formed by the optical fibers (12) woven with the binding yarns (3). .
• the coating layer is reported after the weaving operation on both components of the fabric.
• the coating layer (14) incorporating the photo-catalytic particles can be positioned only on the binding yarns (3) when these are offset in a plane parallel to the plane defined by the optical fibers (2).
• the optical fibers (2) are then punctually bonded by binding threads (33) so as to allow the shifting between bottom wires (33) incorporating the binding yarns and the optical fibers (2). In this way, it is possible to position the coating layer (14) after the weaving operation only on one of the components of the textile web.
• the invention also relates to a complex having the textile web previously described in FIG. 4, attached to a nonwoven support (11) which may have a coating layer (21) in which particles photocatalysts (24) are embedded.
• a large quantity of photocatalytic particles are illuminated by the optical fibers (2), which makes it possible to considerably increase the depollution efficiency of the fluid passing through such a complex.
• a textile web according to the invention has multiple advantages, and in particular: • it makes it possible to facilitate the gripping and making up of photocatalytic filters thanks to a structure in which the optical fibers are linked one against another;
• a textile web according to the invention has many industrial applications among which we can notably mention:

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• Chemical & Material Sciences (AREA)
• Engineering & Computer Science (AREA)
• Life Sciences & Earth Sciences (AREA)
• Chemical Kinetics & Catalysis (AREA)
• Organic Chemistry (AREA)
• Materials Engineering (AREA)
• General Chemical & Material Sciences (AREA)
• Geochemistry & Mineralogy (AREA)
• Environmental & Geological Engineering (AREA)
• General Life Sciences & Earth Sciences (AREA)
• Health & Medical Sciences (AREA)
• Hydrology & Water Resources (AREA)
• Water Supply & Treatment (AREA)
• Physics & Mathematics (AREA)
• Mechanical Engineering (AREA)
• Optics & Photonics (AREA)
• Composite Materials (AREA)
• General Physics & Mathematics (AREA)
• Biomedical Technology (AREA)
• Analytical Chemistry (AREA)
• Oil, Petroleum & Natural Gas (AREA)
• Toxicology (AREA)
• Catalysts (AREA)
• Physical Water Treatments (AREA)
• Treatment Of Water By Oxidation Or Reduction (AREA)
• Woven Fabrics (AREA)
• Chemical Or Physical Treatment Of Fibers (AREA)

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• 2006
  • 2006-12-20 FR FR0655665A patent/FR2910341B1/fr active Active
• 2007
  • 2007-12-20 JP JP2009542168A patent/JP2010513737A/ja active Pending
  • 2007-12-20 WO PCT/FR2007/052594 patent/WO2008087339A2/fr active Application Filing
  • 2007-12-20 US US12/520,452 patent/US20100029157A1/en not_active Abandoned
  • 2007-12-20 EP EP07872004A patent/EP2104550A2/de not_active Withdrawn

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