Removal of Borate-Boron from Aqueous Solution Using Its Adsorption to Silica Gel

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  • Tanifuji Kosuke
    Interdisciplinary Graduate School of Science and Engineering, Shimane University
  • Seike Yasushi
    Department of material Science, Interdisciplinary Faculty of Science and Engineering, Shimane University
  • Okumura Minoru
    Department of material Science, Interdisciplinary Faculty of Science and Engineering, Shimane University

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Other Title
  • シリカゲルによる水中ホウ素の吸着除去
  • シリカゲル ニ ヨル スイチュウ ホウソ ノ キュウチャク ジョキョ

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Abstract

The adsorptive removal of borate-boron from an aqueous solution using silica gel was studied using a batch equilibration technique. The effects of the pH and metal ions, such as alkali metal and alkaline earth metal, were clarified. The boron adsorption efficiencies increased with increasing the pH and the concentration of alkaline earth metal ions, and their maximum adsorptions were obtained at pH 10-12 in solutions containing calcium ion. The adsorption data obtained by changing the boron concentration and the adsorbent dosage were well represented by the Freundlich isotherm model.

Journal

  • BUNSEKI KAGAKU

    BUNSEKI KAGAKU 58 (8), 767-770, 2009

    The Japan Society for Analytical Chemistry

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