Studies of adsorption of anionic species on minerals

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  • FUKUSHI Keisuke
    Institute of Nature and Environmental Technology, Kanazawa University

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  • 鉱物による無機陰イオン種の吸着に関する研究
  • 日本鉱物科学会研究奨励賞第4回受賞者 受賞記念研究紹介 鉱物による無機陰イオン種の吸着に関する研究
  • ニホン コウブツ カガクカイ ケンキュウ ショウレイショウ ダイ4カイ ジュショウシャ ジュショウ キネン ケンキュウ ショウカイ コウブツ ニ ヨル ムキ インイオンシュ ノ キュウチャク ニ カンスル ケンキュウ

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Abstract

  Water pollutions with toxic anionic species become the matter of the world wide concern. The cause of the water pollution is related to the mobility of elements on earth surface environment. Because the most important transfer media of elements on earth surface is water, the water solubility of elements is essential factor to determine the mobility. The important physico-chemical processes governing the water solubility are dissolution and formation of minerals and adsorption and desorption of elements to mineral surfaces. The fact that the abundance of dissolved trace elements in natural waters is usually lower that what might be expected based on the solubility products of associated minerals is primarily attributed to adsorption of the trace elements onto mineral surfaces. In order to predict the behavior of toxic anionic species on earth surface, it is essential to understand adsorption processes of anionic species on mineral surfaces quantitatively. In present paper, I introduce the studies that focus on the adsorption processes of arsenate on minerals by means of field observation and theoretical consideration.<br>

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