Membrane filter with electrical and/or acoustic enhancement

Details Membrane filter with electrical and/or acoustic enhancement Membrane filter with electrical and/or acoustic enhancement

B - Operations, Transporting

01

D

B01D 35/06 (2006.01) B01D 57/02 (2006.01) B01D 61/42 (2006.01) B01D 63/16 (2006.01) B01D 65/08 (2006.01) C02F 1/00 (2006.01) C02F 1/36 (2006.01) C02F 1/44 (2006.01) C02F 1/469 (2006.01)

Patent

CA 2247386

This invention relates to tubular and flat sheet membrane filters, particularly those filters whose ability to separate particulate, molecular or ionic contaminants from suspensions is enhanced by the addition of electric fields to the filter. When a membrane filter is in use, contaminants from the feed liquid accumulate at the membrane surface to form a polarised layer which inhibits flow through the membrane. Contaminants in a liquid become charged and when subjected to an electric field will migrate toward one or other of the electrodes. If the electrodes are located either side of a permeable membrane or barrier, the contaminant can be caused to migrate by electrophoresis away from the membrane or barrier. The system can be made more effective by using a combination of ultrasonic fields and controlled hydrodynamic fields with the electric field. The ultrasonic and the hydrodynamic fields will improve the separation of the solids from the water and the electric field will cause the particles to migrate away from the membrane.

Cette invention se rapporte à des filtres tubulaires à membrane plane, et notamment à des filtres dont on accroît l'aptitude à séparer des contaminants particulaires, moléculaires ou ioniques de suspensions, en leur associant des champs électriques. Lorsqu'on utilise un filtre à membrane, les contaminants du liquide d'alimentation s'accumulent à la surface de la membrane de façon à constituer une couche polarisée qui empêche l'écoulement à travers ladite membrane. Les contaminants d'un liquide se chargent et lorsqu'ils se trouvent soumis à un champ électrique, ils migrent vers l'une ou l'autre des électrodes. Si les électrodes sont situées de part et d'autre d'une barrière ou membrane perméable, le contaminant peut être contraint à s'éloigner par électrophorèse de ladite membrane ou barrière. On peut rendre ledit système encore plus efficace en combinant des champs ultrasonores et des champs hydrodynamiques régulés audit champ électrique. Les champs ultrasoniques et hydrodynamiques améliorent la séparation des solides de l'eau et le champ électrique provoque la migration des particules en direction opposée à la membrane.

Affiliated with

Also associated with

Rating

Membrane filter with electrical and/or acoustic enhancement does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Membrane filter with electrical and/or acoustic enhancement, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Membrane filter with electrical and/or acoustic enhancement will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1748140