Nanofiltration device for inactivation of air-filtered pathogens on surface-treated filter materials

Abstract

The object is to provide a nanofiltration device for the inactivation of droplet-borne pathogens. By filtering contaminated air, the microdroplets are captured on a filter material / paper surface-treated with nanofibrillated cellulose and / or nanocellulose containing antibacterial metal ions and adjuvants in the residual water. Air is sucked into the opening system of the nanofiltration device located at the bottom of the device and enters the space in the middle of the filter cartridge, where a germicidal emitter is attached that emits radiation in the UV-C range of the electromagnetic wave wavelength spectrum. The air then flows through the filter paper containing antibacterial metal salts, from the center of the emitter outwards, through the filter paper sealed and inserted in the filter cartridge. The filter paper is folded in harmony so that the surface is maximally and completely irradiated with UV-C radiation. The antibacterial ions diffuse into the contaminated microdroplets and, together with the UV-C radiation, inactivate the viruses and disinfect the bacteria. The droplets then dry and the inactivated viruses and bacteria are carried by the air and enter the human body together with the adjuvants, promoting herd immunity.

Claims

1. A nanofiltration device (1) of cylindrical or prismatic shape for inactivating pathogens in an air-filtered process through a filter containing an inorganic additive in residual water on a cellulose carrier, comprising: It has a flat base connected to the surroundings through a perforated base / foundation (2) and an internal space (3) bounded by a material that is long-term stable against the action of radiation in the UV-C range of the electromagnetic wavelength spectrum and positioned in a longitudinal cylindrical shape in the internal space of the device, A germicidal radiator (4) having a cylindrical or U-tube shape is located in the center of the internal space (3) in the longitudinal direction (axial direction), The germicidal radiator (4) emits UV-C radiation and is placed parallel to the direction of airflow entering the inside of the filter cartridge (6); The filter cartridge (6) is sealed at the bottom of the internal space (3), so that air drawn from the surroundings through the opening at the bottom of the device reaches only the center of the cartridge, and the top is sealed so that the airflow is directed through the accordion-shaped aligned porous walls of the filter paper sheet (5); The nanofiltration device (1) is a filter that contains nanofibrillated cellulose and / or nanocellulose derived from corn distillery waste, and an adjuvant (aluminum compound: AlPO) added at a concentration below the solubility limit. ４ , Al(OH) ３ , (Al) ２ P.O. ４ SO ４ OH and chitosan), and Cu(NO ３ ) ２ , Zn(NO ３ ) ２ , Ca(NO ３ ) ２ and Mg(NO ３ ) ２ or other soluble salts of Cu, Zn, Ca and Mg, said filter paper sheet (5) is folded in an accordion shape into said filter cartridge (6) so that the surface area is maximum and completely irradiated with UV-C radiation; A nanofiltration device, characterized in that one or more fans (10) are placed below and / or above said filter cartridge (6) to provide a forced flow of air through the holes of the accordion-folded filter sheet.

2. The nanofiltration device contains nanofibrillated cellulose and / or nanocellulose, an adjuvant, and Zn(NO) at a concentration below its solubility limit. ３ ) ２ , Ca(NO ３ ) ２ and Mg(NO ３ ) ２ or other soluble salts of Zn, Ca and Mg, The filter material is folded in an accordion shape within the filter cartridge so that the surface area is maximized and completely irradiated with UV-C radiation; One or more fans (10) are located below and / or above the filter cartridge (6) to provide forced air flow through the holes in the accordion-folded filter sheet. A nanofiltration device (1) for inactivating pathogens filtered from the air by inorganic additives on a cellulose carrier, having a flat base connected to the surrounding environment through a base / foundation (2) as claimed in claim 1.

3. The nanofiltration device contains nanofibrillated cellulose and / or nanocellulose, an adjuvant, and Cu(NO) at a concentration below its solubility limit. ３ ) ２ , Ca(NO ３ ) ２ and Mg(NO ３ ) ２ or other soluble salts of Cu, Ca and Mg, The filter material is folded in an accordion shape within the filter cartridge so that the surface area is maximized and completely irradiated with UV-C radiation; One or more fans (10) are located below and / or above the filter cartridge (6) to provide forced air flow through the holes in the accordion-folded filter sheet. A nanofiltration device (1) for inactivating pathogens filtered from the air by inorganic additives on a cellulose carrier, having a flat base connected to the surrounding environment through a base / foundation (2) as claimed in claim 1.

4. The nanofiltration device contains nanofibrillated cellulose and / or nanocellulose, an adjuvant, and Cu(NO) at a concentration below its solubility limit. ３ ) ２ , Zn(NO ３ ) ２ and Ca(NO ３ ) ２ or other soluble salts of Cu, Zn and Ca, The filter material is folded in an accordion shape within the filter cartridge so that the surface area is maximized and completely irradiated with UV-C radiation; One or more fans (10) are located below and / or above the filter cartridge (6) to provide forced air flow through the holes in the accordion-folded filter sheet. A nanofiltration device (1) for inactivating pathogens filtered from the air by inorganic additives on a cellulose carrier, having a flat base connected to the surrounding environment through a base / foundation (2) as claimed in claim 1.

5. The nanofiltration device contains nanofibrillated cellulose and / or nanocellulose, an adjuvant, and Cu(NO) at a concentration below its solubility limit. ３ ) ２ , Zn(NO ３ ) ２ and Mg(NO ３ ) ２ or other soluble salts of Cu, Zn and Mg, The filter material is folded in an accordion shape within the filter cartridge so that the surface area is maximized and completely irradiated with UV-C radiation; One or more fans (10) are located below and / or above the filter cartridge (6) to provide forced air flow through the holes in the accordion-folded filter sheet. A nanofiltration device (1) for inactivating pathogens filtered from the air by inorganic additives on a cellulose carrier, having a flat base connected to the surrounding environment through a base / foundation (2) as claimed in claim 1.

6. The nanofiltration device contains nanofibrillated cellulose and / or nanocellulose, an adjuvant, and Cu(NO) at a concentration below its solubility limit. ３ ) ２ , Zn(NO ３ ) ２ or other soluble salts of Cu, and Zn, The filter material is folded in an accordion shape within the filter cartridge so that the surface area is maximized and completely irradiated with UV-C radiation; One or more fans (10) are located below and / or above the filter cartridge (6) to provide forced air flow through the holes in the accordion-folded filter sheet. A nanofiltration device (1) for inactivating pathogens filtered from the air by inorganic additives on a cellulose carrier, having a flat base connected to the surrounding environment through a base / foundation (2) as claimed in claim 1.

7. The nanofiltration device contains nanofibrillated cellulose and / or nanocellulose, an adjuvant, and Cu(NO) at a concentration below its solubility limit. ３ ) ２ , Ca(NO ３ ) ２ or other soluble salts of Cu, and Ca, The filter material is folded in an accordion shape within the filter cartridge so that the surface area is maximized and completely irradiated with UV-C radiation; One or more fans (10) are located below and / or above the filter cartridge (6) to provide forced air flow through the holes in the accordion-folded filter sheet. A nanofiltration device (1) for inactivating pathogens filtered from the air by inorganic additives on a cellulose carrier, having a flat base connected to the surrounding environment through a base / foundation (2) as claimed in claim 1.

8. The nanofiltration device contains nanofibrillated cellulose and / or nanocellulose, an adjuvant, and Cu(NO) at a concentration below its solubility limit. ３ ) ２ , Mg(NO ３ ) ２ or other soluble salts of Cu and Mg, The filter material is folded in an accordion shape within the filter cartridge so that the surface area is maximized and completely irradiated with UV-C radiation; One or more fans (10) are located below and / or above the filter cartridge (6) to provide forced air flow through the holes in the accordion-folded filter sheet. A nanofiltration device (1) for inactivating pathogens filtered from the air by inorganic additives on a cellulose carrier, having a flat base connected to the surrounding environment through a base / foundation (2) as claimed in claim 1.

9. The nanofiltration device contains nanofibrillated cellulose and / or nanocellulose, an adjuvant, and Ca(NO) at a concentration below its solubility limit. ３ ) ２ , Zn(NO ３ ) ２ or other soluble salts of Ca and Zn, The filter material is folded in an accordion shape within the filter cartridge so that the surface area is maximized and completely irradiated with UV-C radiation; One or more fans (10) are located below and / or above the filter cartridge (6) to provide forced air flow through the holes in the accordion-folded filter sheet. A nanofiltration device (1) for inactivating pathogens filtered from the air by inorganic additives on a cellulose carrier, having a flat base connected to the surrounding environment through a base / foundation (2) as claimed in claim 1.

10. The nanofiltration device contains nanofibrillated cellulose and / or nanocellulose, an adjuvant, and Mg(NO ３ ) ２ and Zn(NO ３ ) ２ or other soluble salts of Mg and Zn, The filter material is folded in an accordion shape within the filter cartridge so that the surface area is maximized and completely irradiated with UV-C radiation; One or more fans (10) are located below and / or above the filter cartridge (6) to provide forced air flow through the holes in the accordion-folded filter sheet. A nanofiltration device (1) for inactivating pathogens filtered from the air by inorganic additives on a cellulose carrier, having a flat base connected to the surrounding environment through a base / foundation (2) as claimed in claim 1.

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