Effect of Aluminum Ion on Silica Removal from Geothermal Brine by Seeding Method Using Silica Gel

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The seeding method using silica gel has been suggested as a way to inhibit silica scale formation. In order to improve the silica removal performance, the effect of coaddition of aluminum ion on the silica removal was experimentally examined. When only aluminum ion solution is added in the supersaturated silica solution, the decrease in silica concentration increases with time. This is because aluminum ion produces aluminosilicate deposits. The decrease in silica concentration becomes larger with increasing aluminum ion concentration or with increasing initial pH. When initial pH is 9, the decrease in silica concentration in the coaddition is larger than three times that in the silica gel addition. The coaddition of aluminum ion is found to improve the performance of silica removal when the initial pH is higher than 8.

収録刊行物

  • Journal of chemical engineering of Japan  

    Journal of chemical engineering of Japan 31(3), 462-464, 1998-06 

    The Society of Chemical Engineers, Japan

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各種コード

  • NII論文ID(NAID)
    10002065737
  • NII書誌ID(NCID)
    AA00709658
  • 本文言語コード
    ENG
  • 資料種別
    SHO
  • ISSN
    00219592
  • NDL 記事登録ID
    4539072
  • NDL 雑誌分類
    ZP1(科学技術--化学・化学工業)
  • NDL 請求記号
    Z53-R395
  • データ提供元
    CJP書誌  CJP引用  NDL  J-STAGE 
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