C - Chemistry – Metallurgy – 02 – F
Patent
C - Chemistry, Metallurgy
02
F
C02F 1/24 (2006.01) B01D 1/22 (2006.01) B03D 1/24 (2006.01) C02F 1/00 (2006.01) C02F 1/52 (2006.01)
Patent
CA 2687486
The invention relates to a flotation water treatment plant comprising at least: an inlet zone (31) for the water to be treated, which is coagulated and flocculated beforehand; a mixing zone (32), for mixing pressurized and then depressurized water with said water to be treated; a flotation zone (35) separated from said mixing zone by a wall; a clarified-water take-up zone (36) provided in the lower part of said flotation zone (35). According to the technique shown here, said mixing zone accommodates (32) at least one spray nozzle (40, 91, 92) for spraying said pressurized water, said spray nozzle (40, 91, 92) lying close to a panel (33), at least part of which has perforations (331), said panel separating said inlet zone (31) from said mixing zone (32).
L'invention concerne une installation de traitement d'eau par flottation comprenant au moins : - une zone d'arrivée (31) d'eau à traiter préalablement coagulée et floculée; - une zone de mélange (32) d'une eau pressurisée puis détendue avec ladite eau à traiter; - une zone de flottation (35) séparée de ladite zone de mélange par une paroi; - une zone de reprise (36) d'eau clarifiée prévue dans la partie inférieure de ladite zone de flottation (35); Selon la technique présentée ici, ladite zone de mélange accueille (32) au moins une buse de diffusion (40, 91, 92) de ladite eau pressurisée, ladite buse de diffusion (40, 91, 92) s'étendant au voisinage d'un panneau (33), dont au moins une partie présente des perforations (331), et qui sépare ladite zone d'arrivée (31) et ladite zone de mélange (32).
Badard Michel
Dumoulin Laurence
Pastorelli Delia
Otv Sa
Oyen Wiggs Green & Mutala Llp
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