シリカスケール生成に及ぼすポリアクリル酸の影響に関する実験的研究

DOI

書誌事項

タイトル別名
  • Experimental Study on the Effect of Polyacrylic Acid on the Growth of Silica Scale

抄録

In order to elucidate whether polyacrylic acid (PAA) accelerates the deposition of silica scale from geothermal water at geothermal power plants, some laboratory experiments were conducted. All experiments were carried out at pH 8-9. The PAA alone or Ca did not affect the polymerization of silicic acid in solution. When silica gel was added into silicic acid solutions containing aluminum ion (Al) and PAA, the PAA forms a Al-PAA complex and the complex adsorbs on the surface of silica gel. The dissolution of silica gel was retarded by adsorption of the Al-PAA complex. The adsorption of monosilicic acid on the surface of silica gel was also accelerated. From the experimental results, it can be reasonably considered that the addition of PAA into geothermal water causes both the retardation of dissolution of silica scales and the acceleration of deposition of monosilicic acid (growth of the silica scales).

収録刊行物

キーワード

詳細情報 詳細情報について

  • CRID
    1390001206128555776
  • NII論文ID
    130004707043
  • DOI
    10.11367/grsj.36.33
  • ISSN
    18835775
    03886735
  • 本文言語コード
    en
  • データソース種別
    • JaLC
    • CiNii Articles
  • 抄録ライセンスフラグ
    使用不可

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