Installation for treating water by flotation

C - Chemistry – Metallurgy – 02 – F

Patent

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Details

C02F 1/24 (2006.01) B01D 21/00 (2006.01) B01D 21/24 (2006.01) B03D 1/14 (2006.01)

Patent

CA 2522526

The invention relates to an installation for treating water by flotation, said installation comprising flotation equipment consisting of a flotation cell (10) into which flocculated raw water mixed with micro-bubbles produced by a pressurisation-depressurisation system (11) is guided, said cell being provided with a perforated collection device (13) designed in such a way that the surface of the flotation cell is crossed by an identical and uniform flow of water to be treated. The inventive installation is characterised in that it comprises capture modules (14) which are arranged in the flotation cell in such a way that the lower part thereof is located at a distance (h) from the perforated collection device (13), said distance being determined such that any disturbance of the uniform distribution established by the perforated collection device is avoided.

Installation de traitement d'eaux par flottation comportant un équipement de flottation constitué d'une cellule de flottation (10) dans laquelle est amenée de l'eau brute floculée et mélangée avec des micro-bulles produites par un système de pressurisation-détente (11), cette cellule étant munie d'un dispositif de reprise (13) perforé, conçu de façon que la surface de la cellule de flottation soit traversée par un flux identique et uniforme de l'eau à traiter, cette installation étant caractérisée en ce qu'elle comporte des modules de capture (14) disposés dans la cellule de flottation de manière que leur partie inférieure soit située à une distance (h) du dispositif de reprise perforé (13), cette distance étant déterminée de façon à éviter toute perturbation de la distribution uniforme établie par le dispositif de reprise perforé.

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