| 摘要 |
An electrodeionization device for large-volume ultra-pure deionization of water is disclosed. The device comprises a plurality of alternating ion depletion and concentration compartments, interposed between an anode assembly and a cathode assembly, through which flows either a product stream or a waste stream. Each compartment contains several fluid-accessible channels packed with an appropriate ion-exchange medium. The flow of the waste and product streams among the compartments is "parallel" (i.e., contemporaneous). The flow of a stream through the compartments-i.e., through the channels therein-is "serial" (i.e., sequential). In an embodiment, electrical current is generated through the compartments using segmented electrodes-either in the anode and/or the cathode assembly-that are connected to a single multiple-outlet power source. The device is fast, efficient, robust, and its configuration is comparatively easy to scale upwards to accommodate larger water processing volumes.
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