Rapid sterilization of an air filter medium

Details Rapid sterilization of an air filter medium Rapid sterilization of an air filter medium

B - Operations, Transporting

01

J

B01J 19/08 (2006.01) A61L 2/02 (2006.01) A61L 2/14 (2006.01) A61L 9/16 (2006.01) A61L 9/22 (2006.01)

Patent

CA 2501022

A method and apparatus (10) for sterilizing a filter medium (14) includes the steps of providing a filter element (14), an atmospheric plasma device (12) capable of generating and convecting reactive oxidative species, and locating the filter element (14) downstream of the plasma device (12) whereby both the surface and the bulk of a filter media (14) is exposed to the reactive oxidative species generated from the atmospheric plasma effecting sterilization of the filter element (14). The atmospheric plasma device (12) is either an RF, a DC pulse, or an AC power supply to generate the atmospheric plasma and create the reactive oxidative species.

L'invention concerne un procédé et un appareil (10) permettant de stériliser un milieu filtrant (14). Ce procédé comprend les étapes consistant à utiliser un élément de filtre (14) et un dispositif à plasma atmosphérique (12) capable de générer des espèces réactives oxydantes et de soumettre celles-ci à une convection, et à placer l'élément de filtre (14) en aval du dispositif à plasma (12), la surface et le volume d'un milieu filtrant (14) étant exposés aux espèces réactives oxydantes générées à partir du plasma atmosphérique et stérilisant l'élément de filtre (14). Le dispositif à plasma atmosphérique (12) est une alimentation soit RF, soit à impulsion C.C., soit C.A. permettant de générer le plasma atmosphérique et de créer les espèces réactives oxydantes.

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