Device for the aerobic microbiological treatment of waste water

C - Chemistry – Metallurgy – 02 – F

Patent

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Details

C02F 3/20 (2006.01) B01D 21/00 (2006.01)

Patent

CA 2356903

The invention relates to a device for the aerobic microbiological treatment of waste water, comprising a reactor which contains biomass and has an upper reactor chamber and a lower reactor chamber. The waste water for cleaning is conveyed via a waste water delivery pipe (1) into the upper reactor chamber, where it is mixed with a proportion of the biomass and accommodated. A filtering and aerating unit (6) consisting of at least one porous hollow body (7) which serves as a membrane adjoins the reactor. Said hollow body creates a free cross-section for the through-flow of the water and biomass and the cavity of the at least one hollow body (7) can be connected to a gas source and to an outlet (10) for filtered clarified water. The at least one hollow body (7) serves as an aeration element during the aeration process and as a filtering element during the filtering process.

L'invention concerne un dispositif de traitement microbiologique aérobie d'eaux usées, comportant un réacteur qui contient de la biomasse et présente une chambre supérieure et une chambre inférieure. Les eaux usées à épurer peuvent être acheminées par l'intermédiaire d'une conduite d'amenée d'eaux usées (1) dans la chambre supérieure de réacteur, où elles sont mélangées avec une partie de la biomasse. Une unité de filtration et d'aération (6) placée en aval du réacteur est constituée d'au moins un corps creux poreux (7), servant de membrane, qui permet le passage de l'eau et de la biomasse. La cavité du ou des corps creux peut être raccordée à une source de gaz et à un écoulement (10) pour l'eau claire filtrée. Le ou les corps creux (7) servent d'éléments d'aération lors de l'aération et d'éléments filtrants lors de la filtration.

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