Bioreactor

C - Chemistry – Metallurgy – 02 – F

Patent

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Details

C02F 3/06 (2006.01) C02F 3/10 (2006.01)

Patent

CA 2263668

In a bioreactor (8) for conditioning water loaded with organic substances, in particular from car washing installations, the reactor container has a solid bed (48) made of a porous substrate material capable of adsorbing the organic substances contained in the waste water and sown with micro-organisms known per se which degrade the organic substances contained in the water. The solid bed (48) is located on a permeable substrate (47) and a water collecting chamber (46) is provided below the solid bed, upstream of the outlet for the treated water. The outlet (26) is at the same time designed as a backwashing inlet. An inlet (24) and a backwashing outlet (28) are provided above the solid bed (48).

L'invention concerne un bioréacteur (8) pour le traitement de l'eau chargée de matières organiques, provenant notamment de stations de lavage automatique, dans lequel la cuve de réacteur comporte un lit fixe (48) constitué d'un matériau support poreux et apte à l'adsorption des matières organiques des eaux résiduaires. Ce matériau support est colonisé par des micro-organismes, connus en soi, qui décomposent les matières organiques de l'eau. Le lit fixe (48) se trouve sur un support perméable (47), et au-dessous de ce lit fixe est disposé un espace collecteur d'eau (46) placé en amont de l'évacuation destinée à l'eau traitée. Cette évacuation (26) joue en même temps le rôle d'arrivée de rétrolavage, et au-dessus du lit fixe (48) se trouvent une arrivée (24) ainsi qu'une évacuation de rétrolavage (28).

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