Method and device for purifying liquids, in particular...

B - Operations – Transporting – 01 – D

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B01D 36/00 (2006.01) B01D 21/00 (2006.01) B01D 24/04 (2006.01) B01D 29/01 (2006.01) B01D 29/27 (2006.01) C02F 1/28 (2006.01)

Patent

CA 2208604

The invention concerns a device for purifying liquids, in particular polluted water for fighting fires. The device comprises a reservoir divided into a plurality of sections by means of an intermediate base plate (9), a first partition (13) and a second partition (19). A first section (A) comprises a wall (11) for solids and a wall (12) for floating matter in order to separate floating matter and coarse matter. A second section (B1) comprises a screen member (15) and filtration panels (16, 17, 18) for fine filtration. A further section (B2) comprises bag filters (21) for extra-fine filtration of the pollutants in the polluted liquid. A final section (C) comprises a filtering material (26) for adsorption, absorption or chemical conversion of the pollutants dissolved in the liquid.

L'invention concerne un dispositif servant à purifier des liquides, notamment des eaux polluées pour extinction d'incendies. Ce dispositif comprend un réservoir subdivisé en plusieurs sections par l'intermédiaire d'une plaque de base intermédiaire (9), ainsi que d'une première cloison de séparation (13) et d'une seconde cloison de séparation (19). Une première section (A) comporte une paroi pour solides (11) et une paroi pour matières surnageantes (12), servant à la séparation des détritus et des matières surnageantes. Une deuxième section (B1) comporte un élément de criblage (15) et des panneaux filtrants (16, 17, 18) pour filtration fine. Une autre section (B2) comporte des sachets filtrants (21) pour filtration extra-fine des polluants contenus dans le liquide pollué. Une dernière section (C) comporte un matériau filtrant (26) servant à adsorber, absorber ou à transformer chimiquement des polluants dissous dans le liquide.

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