Bulletin of the Society of Sea Water Science, Japan
Online ISSN : 2185-9213
Print ISSN : 0369-4550
ISSN-L : 0369-4550
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Volume 65, Issue 6
Special Issue : “The 60th Anniversary Memory”
Displaying 1-26 of 26 articles from this issue
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Preface
About the 60th Anniversary Memory
Memorial Lecture
Memorial Visit
Reports and Prospects of Research Activities
Current Activity and Future Aspect of Young Member
Regular Issue from 2001 to 2011
Short Paper
  • Organic fouling properties of anion-exchange membranes with various electrodialysis conditions
    Nobuyuki Tanaka, Mitsuru Higa
    2011 Volume 65 Issue 6 Pages 362-363
    Published: December 01, 2011
    Released on J-STAGE: August 31, 2012
    DOIhttps://doi.org/10.11457/swsj.65.362
    JOURNAL FREE ACCESS
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    Organic fouling behavior of commercially available anion-exchange membranes (AEMs), AMX and ASM was examined by measuring the voltage drop between probe electrodes in an electrodialysis (ED) system consisting of AEM and NaCl solutions containing sodium dodecylbenzene-sulfonate (DBS) as an organic foulant. The slope of the time-voltage curves through AEMs increases with increasing DBS concentration. The slope of the two AEMs increases with increasing current density. ASM has a higher anti-organic fouling property than AMX at high DBS concentrations and/or high current densities because of its high water content.
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  • Supplying Effect of Minute Nitrogen Bubbles on Cooling Crystallization of Sodium Chloride
    Yoshinari Wada, Masakazu Matsumoto, Kaoru Onoe
    2011 Volume 65 Issue 6 Pages 364-365
    Published: December 01, 2011
    Released on J-STAGE: August 31, 2012
    DOIhttps://doi.org/10.11457/swsj.65.364
    JOURNAL FREE ACCESS
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    New technology to perform cooling crystallization accompanying a supply of minute bubbles was developed. Minute nitrogen (N2) bubbles are supplied continually into a saturated sodium chloride (NaCl) solution, and the supplying effect of minute N2 bubbles on cooling crystallization phenomena of NaCl was investigated. minute N2 bubbles were generated using self-supporting bubble generator. When the saturated NaCl solution was cooled down at a constant cooling rate, the induction period of NaCl crystallization was reduced owing to the supply of minute N2 bubbles compared with non-supplying crystallization. Furthermore, a cohesion restraint of NaCl fine particles was observed owing to the presence of minute N2 bubbles.
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