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AssigneeUnited States Filter Corporation
InventorsFrederick C. Wilkins, Li-Shiang Liang, Anthony Giuffrida
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An electrodeionization apparatus and method of use includes an expanded conductive mesh electrode. The expanded conductive mesh electrode may be formed from any conductive material that is dimensionally stable and may be coated with conductive coating. The expanded conductive mesh electrodes typically have a diamond-shaped pattern of any size that provides support for an adjacent ion-permeable membrane while allowing an electrode or fluid stream to flow through. The conductive mesh electrode may also be placed against an endblock having fluid channels. These channels may be serpentine or parallel channels, which allow fluid flow to wash away any accumulation. The electrodeionization apparatus may have a protective ion-permeable membrane adjacent the electrode. The electrodeionization apparatus may also have a spacer, such as a fabric, a screen or a mesh, positioned adjacent the electrode.
An electrodeionization apparatus, comprising:
An electrodeionization apparatus comprising:
An electrodeionization apparatus comprising:
An electrodeionization apparatus comprising:
An electrodeionization apparatus comprising:
An electrodeionization apparatus comprising:
An electrodeionization apparatus comprising:
An electrodeionization apparatus comprising at least one electrode formed from an expanded metal mesh in contact with an interior surface of an endblock and wherein the interior surface comprises flow channels.
An electrodeionization apparatus for purifying a liquid comprising an electrode compartment free of ion exchange resin constructed and arranged to allow purification of a liquid without chemical addition to provide a substantially uniform current density in the compartment.
An electrodeionization apparatus comprising:
An electrodeionization apparatus comprising an electrode positioned adjacent a flow mixer formed from a woven screen and an endblock positioned against the flow mixer.
An electrodeionization apparatus comprising:
An electrodeionization apparatus comprising at least one electrode, formed from an expanded mesh positioned adjacent to an ion-permeable membrane, an ion-concentrating compartment, and an ion-depleting compartment.
The electrodeionization apparatus of claim wherein the diamond pattern has an LWD:SWD ratio of about 0.5:1 to about 4:1, wherein LWD is a long way dimension and SWD is a short way dimension of the diamond pattern.
Dependencies are inferred from the claim text.