Elution of Hg(II) Adsorbed on Highly Porous Polyaminated Chitosan Beads

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Recovery of mercury(II) adsorbed on highly porous polyaminated chitosan (PEI-CS) appears to be technically feasible. Desorption experiments of Hg(II) from a PEI-CS packed column were carried out using sulfuric acid solutions of different concentrations at different temperatures. The peak of the elution curve is 250 mol/m<SUP>3</SUP> when the concentration of H<SUB>2</SUB>SO<SUB>4</SUB> in the eluent is 1000 mol/m<SUP>3</SUP> at 308 K. The elution curve in PEI-CS is compared with that of Unicellex UR-120H, which is considered the best commercial chelate resin available in Japan for removal of Hg(II). The peak of the elution curve in UR-120H is about one eighth at the same concentration of PEI-CS. The equilibrium isotherm and the breakthrough curve for adsorption of Hg(II) are not affected after repeated cycles of adsorption and desorption.

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  • Journal of chemical engineering of Japan  

    Journal of chemical engineering of Japan 31(1), 115-118, 1998-02 

    The Society of Chemical Engineers, Japan

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各種コード

  • NII論文ID(NAID)
    10002064986
  • 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
    4427710
  • 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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