Air disinfection method and a device for implementation thereof

Abstract

A device and methods for air disinfection of microorganisms and biological agents by the method of their inactivation by electrostatic fields and filtering by the method of electrostatic precipitation is disclosed. The method comprises the steps of: creating a flow (A) of air to be disinfected; subjecting said flow to constant with electrostatic fields alternating in direction of intensity vector, said electrostatic fields being sequentially arranged along the flow, and created by transversely spaced air permeable electrodes ( 1 ); and filtering the treated flow with an electrostatic filter. Electrostatic field concentrators in the form of projections ( 3 ) are located on the surface of the electrodes ( 1 ), in particular nanoscale projections. This provides a fast, effective, and reliable cleaning of air from any kind of microorganisms and viruses, as well as the aerosol particles having size of 0.08 μm.

1 - 11 . (cancelled) 
     
     
         12 . An apparatus for disinfecting air flow, said apparatus comprising electrodes in the form of air permeable conductive plates arranged successively downstream across the flow, and a high voltage power source connected to the electrodes so that the electrodes have alternating polarity, characterized in that the electrodes have on their surfaces concentrators of the electrostatic field in the form of projections with the base diameter not exceeding 30 μm. 
     
     
         13 . The apparatus according to  claim 12 , characterized in that the nanosized projections have a base diameter of not more than 100 nm. 
     
     
         14 . The apparatus according to  claim 12 , characterized in that the air permeable conductive plates are made of a conductive porous material or a bulk conductive fibrous porous structures. 
     
     
         15 . The apparatus according to  claim 12 , characterized in that additionally air permeable highly porous dielectric plates are arranged between the electrodes. 
     
     
         16 . The apparatus according to  claim 15 , characterized in that the highly porous dielectric plates have on their surfaces nanosized projections. 
     
     
         17 . The apparatus according to  claim 12 , characterized in that at least one zone with a high concentration of ions is arranged between the electrodes. 
     
     
         18 . The apparatus according to  claim 17 , characterized in that the electrodes are formed with several zones of increased ion concentration, wherein a portion of said zones of increased concentration of ions have one polarity, and the other zones have the opposite polarity. 
     
     
         19 . The apparatus according to  claim 18 , characterized in that the zones with a high concentration of ions of one polarity alternate with the zones of high concentration of ions of the opposite polarity. 
     
     
         20 . The apparatus according to  claim 12 , characterized in that before the first electrode downstream the air flow at least one zone with a high concentration of ions formed. 
     
     
         21 . The apparatus according to  claim 20 , characterized in that, before the first electrode downstream the air flow, several zones of high concentration of ions of one polarity are formed. 
     
     
         22 . The apparatus according to  claim 17 , characterized in that the zone with a high concentration of ions is formed as coaxial needle corona and cylindrical non-corona electrodes. 
     
     
         23 . The apparatus according to  claim 20 , characterized in that the zone with a high concentration of ions is formed as coaxial needle corona and cylindrical non-corona electrodes. 
     
     
         24 . The apparatus according to  claim 22 , characterized in that at least one zone of a high concentration of ions limited at the inlet by highly porous permeable electrode of polarity coinciding with the polarity of the nearest electrode. 
     
     
         25 . The apparatus according to  claim 24 , characterized in that at least one one of a high concentration of ions is limited at the outlet by highly porous permeable electrode of polarity coinciding with the polarity of the nearest electrode.