Process and apparatus for membrane cleaning

Details Process and apparatus for membrane cleaning Process and apparatus for membrane cleaning

B - Operations, Transporting

01

D

B01D 65/02 (2006.01) B01D 35/06 (2006.01) B01D 61/42 (2006.01) B01D 63/08 (2006.01) B01D 63/16 (2006.01) B01D 65/04 (2006.01) B01D 65/08 (2006.01) B01D 71/02 (2006.01)

Patent

CA 2411935

The invention relates to a method and device for carrying out electrofiltration. Electrofiltration is a commonly known method, which is frequently used in industry for purifying suspensions, such as wastewater resulting from manufacturing processes. Prior art devices used for carrying out electrofiltration have the drawback in that large amounts of expensive metals such as titanium, gold, iridium, platinum and the like have to be used as counter-electrodes to the membrane electrodes. The aim of the invention is to improve the filtration results compared to those of conventional filtration methods and modules without requiring the use of large amounts of expensive metals for the counter-electrodes. To this end, the invention provides a method, according to which the membrane electrodes are displaced, and a device for carrying out said method. The inventive method and device can be used for separating substances.

Procédé et dispositif de séparation de mélanges de substances par électrofiltration. L'électrofiltration est un procédé connu, souvent utilisé dans l'industrie pour purifier des suspensions, telles que par exemple des eaux usées de fabrication. Les appareils d'électrofiltration selon l'état de l'art présentent l'inconvénient de nécessiter l'utilisation de grandes quantités de métaux onéreux tels que le titane, l'or, l'iridium, le platine ou analogue, en tant que contre-électrodes aux électrodes-membranes (M). Le procédé selon lequel les électrodes-membranes (M) sont déplacées et le dispositif selon la présente invention permettent d'obtenir de meilleurs résultats de filtration que par des procédés et modules de filtration classiques, sans qu'il soit nécessaire d'avoir recours à de grandes quantités de métaux onéreux pour les contre-électrodes. Le procédé et le dispositif selon la présente invention peuvent être utilisés pour la séparation de substances.

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