Influence of Operating Conditions on the Performances of a Continuous Electrodeionizatioin with Cation Exchange Textile (CEDI-CET)

  • Song, Jung-Hoon (Department of Environmental Science and Engineering, Gwangju Institute of Science and Technology (GIST)) ;
  • Lee, Jin-Woo (Department of Environmental Science and Engineering, Gwangju Institute of Science and Technology (GIST)) ;
  • Lee, Hong-Joo (Department of Environmental Science and Engineering, Gwangju Institute of Science and Technology (GIST)) ;
  • Moon, Seung-Hyeon (Department of Environmental Science and Engineering, Gwangju Institute of Science and Technology (GIST))
  • Published : 2007.12.31

Abstract

The transport and removal characteristics of cobalt ions were investigated in a continuous electrodeionization with cation exchange textile (CEDI-CET). It was shown that the removal properties of cobalt ions are strongly dependent on the operating parameters such as temperature, flow velocity, and the solution pH. The transport and removal of cobalt ions was mainly related to the sorption on the surface and the convection and electro-migration through the ion exchange medium. In this study, the CEDI-CET showed good process performance for the removal of metal ions compared with the conventional CEDI with resins.

Keywords

References

  1. N. Tazanetakis, W. M. Taama, K. Scott, R. J. J. Jachuck, R. S. Slade, and J. Varcoe, 'Comparative performance of ion exchange membranes for electrodialysis of nickel and cobalt', Sep. Purif. Technol., 30, 113 (2003) https://doi.org/10.1016/S1383-5866(02)00094-1
  2. K. H. Yeon, J. H. Song, J. B. Kim, and S. H. Moon, 'Preparation and characterization of UV-grafted ion-exchange textiles in continuous electrodeionization', J. Chem. Technol. Biot., 79, 1395 (2004)
  3. K. H. Yeon, J. H. Song, and S. H. Moon, 'A study on stack configuration of continuous electrodeionization for removal of heavy metal ions from the primary coolant of a nuclear power plant', Wat. Res., 38, 1911 (2004)
  4. J. H. Song, M. C. Song, K. H. Yeon, J. B. Kim, K. J. Lee, and S. H. Moon, 'Purification of a primary coolant in a nuclear power plant using a magnetic filter - electrodeionization hybrid separation system', J. Radioanal. Nucl. Chem., 262, 725 (2004)
  5. J. H. Song, K. H. Yeon, J. Cho, and S. H. Moon, 'Effects of operating parameters on the Reverse Osmosis-Electrodeionization performance in the production of high purity water', Korean J. Chem. Eng., 22, 108 (2005) https://doi.org/10.1007/BF02701471
  6. A. Grabowski, G. Zhang, H. Strathmann, and G. Eigenberger, 'The production of high purity water by continuous electrodeionization with bipolar membranes: Influence of the anion-exchange membrane permselectivity', J. Membr. Sci., 281, 297 (2006)
  7. E. Laktionov, E. Dejean, J. Sandeaux, R. Sandeaux, C. Gavach, and G. Pourcelly, 'Production of high resistivity water by electrodialysis. Influence of ion-exchange textiles as conducting spacers', Sep. Sci. Technol., 34, 69 (1999) https://doi.org/10.1081/SS-100100637
  8. G. C. Ganzi, A. D. Jha, and J. H. Wood, 'Theory and practice of continuous electrodeionization', Ultra Pure Water, 14, 64 (1997)
  9. S. Thate, N. Specona, and G. Eigenberger, 'A comparison of different EDI concepts used for the production of high-purity water', Ultra Pure Water, 16, 42 (1999)
  10. P. B. Spoor, L. Grabovska, L. Koene, J. J. Janssen, and W. R. ter Veen, 'Pilot scale deionization of a galvanic nickel solution using a hybrid ion-exchange/electrodialysis system', Chem. Eng. J., 89, 193 (2002)
  11. E. Komgold, L. Aronov, and O. Kedem, 'Novel ion-exchange spacer for improving electrodialysis, 1. reacted spacer', J. Membr. Sci., 138, 165 (1998)
  12. J. H. Song, 'Transport phenomena of metal ions in a continuous electrodeionization system and applications in water treatment processes', Ph.D. Dissertation, Gwangju Institute of Science and Technology (2006)
  13. J. H. Song, K. H. Yeon, and S. H. Moon, 'Transport characteristics of $Co^{2+}$ through an ion exchange textile in a continuous electrodeionization (CEDI) system under electro-generation', Sep. Sci. Technol., 39, 3601 (2004) https://doi.org/10.1081/SS-200036796
  14. J. J. Krol, M. Jansink, M. Wessling, and H. Strathmann, 'Behavior of bipolar membranes at high current density - Water diffusion limitation', Sep. Purif. Technol., 14, 41 (1998)
  15. F. Helfferich, 'Ion exchange', McGraw-Hill, New York (1962)
  16. K. H. Yeon, J. H., Seong, S. Rengaraj, and S. H. Moon, 'Electrochemical characterization of ion-exchange resin beds and removal of cobalt by electrodeionization for high purity water production', Sep. Sci. Technol., 38, 443 (2003) https://doi.org/10.1081/SS-120016584
  17. J. H. Song, K. H. Yeon, and S. H. Moon, 'Migration phenomena of $Ni^{2+}$ through a cation exchange textile in a continuous electrodeionization', Membrane Journal, 16, 77 (2006)
  18. J. H. Song and S. H. Moon, 'Principles and current technologies of continuous electrodeionization', Membrane Journal, 16, 167 (2006) (In Korean)