Biological water treatment assembly including a bacteria...

C - Chemistry – Metallurgy – 12 – M

Patent

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Details

C12M 1/00 (2006.01) C02F 3/10 (2006.01) C02F 3/12 (2006.01) C02F 3/28 (2006.01) C02F 3/30 (2006.01) C02F 3/34 (2006.01)

Patent

CA 2461668

A bacteria growth device (1) for use with bacteria in a substantially liquid medium, the device (1) comprising at least one strip (5) having a surface area shaped and sized for receiving bacteria present in the substantially liquid medium and for allowing attachment of said bacteria onto the surface area of the at least one strip (5) so as to promote growth of the attached bacteria. The substantially liquid medium may be enclosed in an aerobic environment, in which case the device (1) is used to promote the growth of aerobic bacteria. Alternatively, the substantially liquid medium may be enclosed in an anaerobic and/or anoxic environment, in which case the device (1) is used to promote the growth of corresponding anaerobic and/or anoxic bacteria. Also described are an assembly including the above-mentioned device and the method associated thereto. Typically, these are used for promoting growth of bacteria destined for treating and purifying wastewater effluents which are high in biochemical demand, such as the wastewater discharges of residential and/or industrial septic/wastewater tanks for example.

L'invention concerne un dispositif (1) de culture de bactéries s'utilisant avec des bactéries dans un milieu sensiblement liquide. Ledit dispositif (1) comprend au moins une bande (5) présentant une surface de forme et de dimensions permettant de recevoir des bactéries présentes dans le milieu sensiblement liquide et permettant à ses bactéries de se fixer sur la surface de la ou les bandes (5) de façon à favoriser la croissance des bactéries fixées. Le milieu sensiblement liquide peut être délimité dans des conditions aérobies ; dans ce cas, le dispositif (1) s'utilise pour favoriser la croissance des bactéries aérobies. Autrement, le milieu sensiblement liquide peut être délimité dans des conditions anaérobies et/ou anoxiques ; dans ce cas, le dispositif (1) s'utilise pour favoriser la croissance des bactéries anaérobies et/ou anoxiques correspondantes. En outre, l'invention concerne un ensemble comportant ledit dispositif et son procédé associé s'utilisant, généralement, pour favoriser la croissance de bactéries destinées au traitement et à la purification d'effluents d'eaux usées. Lesdits effluents, tels que, par exemple, les rejets d'eaux usées de réservoirs d'eaux usées septiques industrielles et/ou domestiques, demandent une quantité élevée de produits biochimiques.

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