Materials, Interfaces, and Electrochemical Phenomena

Preparation of mineral source water from deep sea water: Reduction of sulfate ion using selemion ASV membrane

  1. Hsiang-Yung Lu1,
  2. Chih-Shan Lin2,
  3. Shih-Chi Lee2,
  4. Ming-Hong Ku2,
  5. Jyh-Ping Hsu3,
  6. Shiojenn Tseng4,
  7. Sung-Hwa Lin1,*

Article first published online: 16 JUN 2010

DOI: 10.1002/aic.12319

Issue

AIChE Journal

AIChE Journal

Volume 57, Issue 4, pages 1033–1042, April 2011

Additional Information

How to Cite

Lu, H.-Y., Lin, C.-S., Lee, S.-C., Ku, M.-H., Hsu, J.-P., Tseng, S. and Lin, S.-H. (2011), Preparation of mineral source water from deep sea water: Reduction of sulfate ion using selemion ASV membrane. AIChE J., 57: 1033–1042. doi: 10.1002/aic.12319

Author Information

  1. 1

    Dept. of Chemical and Materials Engineering, National Ilan University, Yilan City, Yilan County 260, Taiwan, ROC

  2. 2

    Stone & Resource Industry R&D Center, Ji'an Township, Hualien County 973, Taiwan, ROC

  3. 3

    Dept. of Chemical Engineering, National Taiwan University, Taipei City 106, Taiwan, ROC

  4. 4

    Dept. of Mathematics, Tamkang University, Danshui Township, Taipei County 251, Taiwan, ROC

*Dept. of Chemical and Materials Engineering, National Ilan University, Yilan City, Yilan County 260, Taiwan, ROC

Publication History

  1. Issue published online: 10 MAR 2011
  2. Article first published online: 16 JUN 2010
  3. Manuscript Revised: 11 MAY 2010
  4. Manuscript Received: 20 MAR 2010

Funded by

  • Stone & Resource Industry R&D Center and the Ministry of Economic Affairs of the Republic of China

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Keywords:

  • potable mineral water;
  • deep sea water;
  • electrodialysis;
  • monovalent anion permselective membrane

Abstract

Adopting a laboratory-scaled electrodialysis (ED) process, we investigate the performance of a monovalent anion exchange permselective membrane in the reduction of the concentration of sulfate ions during the production of mineral source water from deep sea water (DSW). The dependence of the separation efficiency of anions on the operating time and the applied DC voltage is investigated based on a brine having salinity of about 15% prepared from DSW. The experimental results reveal that if the applied DC voltage is high, the change in the liquid volume during ED is dominated by the ions transported and the effect of electroosmosis. In addition, the amount of chloride ions transported correlates roughly linearly with the operating time, and the transport of sulfate ions is found to be blocked by chloride ions, presumably because of that the pore size of the permselective layer is close to the size of sulfate ions. © 2010 American Institute of Chemical Engineers AIChE J, 2011

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