Crud Removal Performance with Ion Exchange Resins in BWR Plants

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It is needless to say that one of the most important roles of the condensate demineralizer in Japanese boiling water reactors (BWR) is to eliminate such impurities during accidental occurrence of sea water leakage from condensate cooling system. Ion exchange resins packed in condensate demineralizer have also been expected to decrease crud, or corrosion products (CP) in condensate water in order to finally reduce activated corrosion products (ACP) in the reactor coolant loop.<BR>It is perceived that crud removal ability of a condensate demineralizer has been improved year by year. And we call this phenomenon as"ging Effect". Typical property changes of aged cation exchange resin consisted of an increase of water retention capacity and a change of surface texture. Based on these findings, we formulated a new concept and developed new gel type ion exchange resins for the better crud removal.<BR>The results from column tests using actual condensate water for approximately three years and full scale test at an actual condensate polisher from Sep. 1993 showed that a gel type cation exchange resin having 6% crosslinkage produced excellent crud removal performance and low leaching rate of total organic carbon.

収録刊行物

  • Journal of nuclear science and technology

    Journal of nuclear science and technology 33(1), p.52-61, 1996-01-25

    Atomic Energy Society of Japan

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各種コード

  • NII論文ID(NAID)
    10002074037
  • NII書誌ID(NCID)
    AA00703720
  • 本文言語コード
    ENG
  • 資料種別
    ART
  • ISSN
    00223131
  • データ提供元
    CJP書誌  CJP引用  J-STAGE 
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