水中に低濃度で存在するクロロフェノール類の吸着剤を介した溶媒中への抽出とオゾン処理 Absorption of Chlorophenols from Aqueous Solution Using Different Absorbents and Their Degradation after Organic Solvent Extraction Using Ozonation Process

この論文にアクセスする

この論文をさがす

著者

    • 大川 清和 OKAWA Kiyokazu
    • 広島大学大学院工学研究科物質化学システム専攻 Department of Material Science and Chemical Engineering, Graduate School of Engineering, Hiroshima University
    • 佐々木 貢 SASAKI Mitsugu
    • 広島大学大学院工学研究科物質化学システム専攻 Department of Material Science and Chemical Engineering, Graduate School of Engineering, Hiroshima University
    • 中野 陽一 [他] NAKANO Yoichi
    • 広島大学大学院工学研究科物質化学システム専攻 Department of Material Science and Chemical Engineering, Graduate School of Engineering, Hiroshima University
    • 西嶋 渉 NISHIJIMA Wataru
    • 広島大学大学院工学研究科物質化学システム専攻 Department of Material Science and Chemical Engineering, Graduate School of Engineering, Hiroshima University
    • 岡田 光正 OKADA Mitsumasa
    • 広島大学大学院工学研究科物質化学システム専攻 Department of Material Science and Chemical Engineering, Graduate School of Engineering, Hiroshima University

抄録

The purpose of this study is to clarify the feasibility of a system in which chlorophenols (CPs) are concentrated from polluted water into an organic solvent by absorbent adsorption followed by ozone decomposition of the CPs in the solvent. CPs were decomposed in organic solvents by ozone with the highest first-order degradation rate constant in acetic acid. The rate constants in acetic acid were higher than those in distilled water for 2,4,5-TCP and 2,3,4,6-TeCP however, those in acetic acid were lower than those in distilled water for p-CP and 2,4-DCP. The Freundlich adsorption constant K of CPs on granular activated carbon (GAC) were 5 - 17 times higher than those on synthetic absorbents. While the percent desorption of CPs from GAC into acetic acid was only 13 - 42%, those of CPs from synthetic absorbents were more than 94%. The concentration ratios of CPs from water to acetic acid by GAC and synthetic absorbents were 5.5×106 - 5.0×1014 and 1.4×102 - 1.1×106, respectively. CPs could be concentrated from water to acetic acid efficiently using absorbents followed by desorption by acetic acid and decomposition by ozone.

収録刊行物

  • 水環境学会誌 = Journal of Japan Society on Water Environment

    水環境学会誌 = Journal of Japan Society on Water Environment 26(12), 855-859, 2003-12-10

    公益社団法人 日本水環境学会

参考文献:  28件中 1-28件 を表示

被引用文献:  2件中 1-2件 を表示

各種コード

  • NII論文ID(NAID)
    10012563420
  • NII書誌ID(NCID)
    AN10372439
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    09168958
  • NDL 記事登録ID
    6796886
  • NDL 雑誌分類
    ZN5(科学技術--建設工学・建設業--都市工学・衛生工学)
  • NDL 請求記号
    Z16-1045
  • データ提供元
    CJP書誌  CJP引用  NDL  J-STAGE 
ページトップへ