Process for aerobic treatment of waste water

C - Chemistry – Metallurgy – 02 – F

Patent

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C02F 3/30 (2006.01)

Patent

CA 2211552

A process is described for the aerobic treatment of effluent in a reactor of the UASB type, into the bottom of which the effluent to be treated is fed and, at the same time, oxygen is fed in an amount such that the growth of a facultative and an aerobic biomass is promoted. An apparatus for the aerobic treatment of effluent is also described, which apparatus consists of a UASB reactor, distributors for supplying liquid and aeration means being located at the bottom of the reactor and means for integrated settling of biomass and gas collection being located at the top of the reactor. The apparatus can also be an integrated anaerobic/aerobic reactor.

Procédé de traitement aérobie d'un effluent dans un réacteur du type à lit de boues expansées alimenté dans sa partie inférieure en effluent à traiter et simultanément en oxygène selon une quantité suffisante pour favoriser la croissance d'une biomasse facultative et aérobie. On a également prévu un appareil de traitement aérobie d'un effluent, appareil constitué d'un réacteur à lit de boues expansées, de distributeurs d'alimentation en liquide, de moyens d'aération situés au fond du réacteur, et de moyens permettant la sédimentation intégrée de la biomasse et la récupération de gaz, et étant situés à l'extrémité supérieure du réacteur. Cet appareil peut également être un réacteur anaérobie/aérobie intégré.

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