Electrochemical separation device

Patent metadata

Field	Value
Publication number	US-9981865-B2
Application number	US-201314442515-A
Country	US
Kind code	B2
Filing date	Mar 15, 2013
Priority date	Nov 19, 2012
Publication date	May 29, 2018
Grant date	May 29, 2018

Abstract

Systems and methods for electrochemical separation are provided. An electrochemical separation device may include at least one cell pair wound around an electrode to from a bundle having a racetrack configuration.

First claim

The invention claimed is:

1. An electrochemical separation device, comprising:
a first electrode comprising a straight section with a semi-circular section at each end to define a substantially elongated S-shaped anode;
at least one cell pair comprising an anion exchange membrane and a cation exchange membrane wound around the first electrode to form a bundle; and
a second electrode surrounding the bundle.

2. The device of claim 1 , wherein the first electrode comprises an anode and wherein the second electrode comprises a cathode.

3. The device of claim 1 , wherein the first electrode further comprises a fastening tab at each end to secure the at least one cell pair.

4. The device of claim 3 , further comprising a spacer configured to maintain a predetermined distance between first and second segments of the anode.

5. A water treatment system, comprising the electrochemical separation device of claim 1 .

Assignees

• Evoqua Water Tech Llc

Inventors

• Liang Li-Shiang

Classifications

• C02F2201/46115

  Electrolytic cell with membranes or diaphragms · CPC title

• C02F1/4693

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• B01D2313/08

  Flow guidance means within the module or the apparatus · CPC title

• B01D2313/345

  Electrodes · CPC title

• Y02W10/33

  using wind energy · CPC title