Amplified electrokinetic fluid pumping switching and desalting

Details Amplified electrokinetic fluid pumping switching and desalting Amplified electrokinetic fluid pumping switching and desalting

H - Electricity

02

K

H02K 44/06 (2006.01) B01D 57/00 (2006.01) B81B 1/00 (2006.01) B81B 7/02 (2006.01) C02F 1/46 (2006.01) C02F 1/469 (2006.01)

Patent

CA 2731727

The present invention provides a device and methods of use thereof for desalting a solution. The methods, inter-alia, make use of a device comprising microchannels, which are linked to conduits, whereby induction of an electric field in the conduit results in the formation of a space charge layer within the microchannel. The space charge layer provides an energy barrier for salt ions and generates an ion depletion zone proximal to the link-age region between the microchannel and the conduit. The method thus en-ables the removal of salt ions from the region proximal to the conduit and their accumulation in a region distant from the conduit, within the mi-crochannel.

L'invention concerne un dispositif et des procédés d'utilisation de ce dispositif pour la désalinisation d'une solution. Les procédés, entre autres, consistent à utiliser un dispositif à microcanaux, reliés à des conduits; dès lors, l'induction d'un champ électrique dans un conduit entraîne la formation d'une couche de charge spatiale dans le microcanal. Cette couche établit une barrière d'énergie pour les ions de sel et génère une zone d'appauvrissement en ions proche de la zone de lien entre le microcanal et le conduit. Ledit procédé permet le retrait d'ions de sel depuis la zone proche du conduit et l'accumulation de ces ions dans une zone distante du conduit, à l'intérieur du microcanal.

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