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Ion concentration polarization-electrocoagulation hybrid water treatment system

  • US 9,850,146 B2
  • Filed: 09/17/2015
  • Issued: 12/26/2017
  • Est. Priority Date: 06/19/2013
  • Status: Active Grant
First Claim
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1. A method of purifying and/or concentrating a first water stream containing ionic impurities comprising:

  • a. directing the water stream in a channel comprising an inlet and an outlet and defined, at least in part by two juxtaposed ion exchange membranes, wherein the ion exchange membranes are characterized by the same charge,b. applying an electric field across the water stream channel;

    whereby, an ion depletion zone (dde) comprising a purified water stream and an ion enrichment zone (den) comprising a concentrated ion aqueous stream are generated and ions are transferred through the ion exchange membranes;

    c. electrocoagulating particles within the water stream; and

    d. collecting the purified water stream and/or the concentrated ion aqueous stream and/or coagulated particles.

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