Capacitive deionization of NH{sub 4}CIO{sub 4} solutions with carbon aerogel electrodes. Revision 1

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A process for capacitive deionization of water with a stack of carbon aerogel electrodes was developed. Unlike ion exchange, one of the more conventional deionization processes, no chemicals are required for regeneration of the system; electricity is used instead. An aqueous solution of NH{sub 4}ClO{sub 4} is pumped through the electrochemical cell. After polarization, NH{sub 4}{sup +} and ClO{sub 4}{sup -} ions are removed from the water by the imposed electric field and trapped in the extensive cathodic and anodic double layers. Thsi process produces one stream of purified water and a second stream of concentrate. Effects of cell voltage, ... continued below

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28 p.

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Farmer, J.C.; Fix, D.V.; Mack, G.V.; Pekala, R.W. & Poco, J.F. January 1, 1996.

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A process for capacitive deionization of water with a stack of carbon aerogel electrodes was developed. Unlike ion exchange, one of the more conventional deionization processes, no chemicals are required for regeneration of the system; electricity is used instead. An aqueous solution of NH{sub 4}ClO{sub 4} is pumped through the electrochemical cell. After polarization, NH{sub 4}{sup +} and ClO{sub 4}{sup -} ions are removed from the water by the imposed electric field and trapped in the extensive cathodic and anodic double layers. Thsi process produces one stream of purified water and a second stream of concentrate. Effects of cell voltage, salt concentration, and cycling on electrosorption capacity were studied and results reported.

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28 p.

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OSTI as DE96008759

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  • 17. Association of Electroplaters and Surface Finishers/Environmental Protection Agency Pollution Prevention/control conference, Orlando, FL (United States), 5-7 Feb 1996

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  • Other: DE96008759
  • Report No.: UCRL-JC--122463-Rev.1
  • Report No.: CONF-960281--1-Rev.1
  • Grant Number: W-7405-ENG-48
  • Office of Scientific & Technical Information Report Number: 211477
  • Archival Resource Key: ark:/67531/metadc664720

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  • January 1, 1996

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  • June 29, 2015, 9:42 p.m.

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  • June 23, 2016, 11:50 a.m.

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Farmer, J.C.; Fix, D.V.; Mack, G.V.; Pekala, R.W. & Poco, J.F. Capacitive deionization of NH{sub 4}CIO{sub 4} solutions with carbon aerogel electrodes. Revision 1, article, January 1, 1996; California. (digital.library.unt.edu/ark:/67531/metadc664720/: accessed July 18, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.