Capacitive deionization cell with through-flow

Details Capacitive deionization cell with through-flow Capacitive deionization cell with through-flow

C - Chemistry, Metallurgy

02

F

C02F 1/469 (2006.01) C02F 1/46 (2006.01) C25B 9/18 (2006.01)

Patent

CA 2746323

The electrodes of the described CDI cell are porous and permeable. The liquid to be deionized (e.g salt water to be desalinated) flows through the electrodes. The electrodes are arranged in a stack, alternating anode/cathode, and water being treated passes through every electrode in the whole stack. For regeneration, the cells are connected (short-circuited) together, and the ions are dislodged mainly by flushing action. The through-flow arrangement can be realized in a number of different configurations.

Les électrodes de la cellule CDI selon l'invention sont poreuses et perméables. Le liquide à déioniser (par ex. de l'eau salée à désaliniser) circule à travers les électrodes. Les électrodes sont disposées en un empilement, alternant anode/cathode, et l'eau à traiter traverse chaque électrode de tout l'empilement. Pour la régénération, les cellules sont connectées (court-circuitées) ensemble, et les ions sont délogés principalement par une action de chasse. La disposition d'écoulement peut être réalisée dans un certain nombre de configurations différentes.

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