Method and apparatus for permeating flow desalination

摘要

A water desalination system and method in accordance with the principles of the present invention employs capacitive deionization to remove ions from source water to produce deionzed and waste water. The process employs charged electrodes to attract ions of opposite polarity from the source water. The process of discharging the electrodes employs solvent drag.

主权项

1. A method comprising the steps of:
applying a potential across porous electrodes; passing source water through a channel between the porous electrodes in an axial direction to deionize the source water with the potential applied across the porous electrodes; adjusting the potential across the porous electrodes; and with the potential adjusted across the porous electrodes, discharging the ions adsorbed to the porous electrodes from the source water by permeating a solvent through the pores of the porous electrodes in a permeating direction at a flow rate of at least 16 ml/minute that removes ions in the pores of the electrodes via a process of solvent drag.