Method and apparatus for treating a fluid

Details Method and apparatus for treating a fluid Method and apparatus for treating a fluid

A - Human Necessities

23

L

A23L 3/32 (2006.01) A23C 3/00 (2006.01) A23C 3/07 (2006.01)

Patent

CA 2459875

A fluid is passed through pores in an electrically insulating membrane. Arranged on the membrane (10a-2,20) are conductive layers (22a, 22b), which are interrupted at the pores. Between the two layers a voltage is applied. The fluid to be treated enters the apparatus by inlet (16) and leaves it by outlet (18). The fluid contains microorganisms or more in general cell material. The voltage is at least so high that a cell wall of the microorganisms is deactivated (for instance perforated) while they flow through the pores.

Selon l'invention, un liquide est acheminé à travers les pores d'une membrane d'isolation électrique. Des couches conductrices (22a, 22b) sont disposées sur cette membrane (10a-2, 20), ces couches étant interrompues au niveau des pores. Une tension est appliquée entre les deux couches. Le liquide à traiter pénètre dans l'appareil par un orifice d'entrée (16) et en ressort par un orifice de sortie (18). Ce liquide contient des micro-organismes ou, plus généralement, un matériau cellulaire. La tension est au moins suffisamment élevée pour désactiver (perforer, par exemple) la paroi cellulaire des micro-organismes pendant qu'ils passent à travers les pores.

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