As(iii) removal through catalytic oxidation and Fe(iii) precipitation

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  • Oshima, Kazumasa
    Department of Chemical Engineering, Graduate School of Engineering, Kyushu University
  • Kondo, Hiromichi
    Department of Chemical Engineering, Graduate School of Engineering, Kyushu University
  • Konishi, Eriko
    Department of Chemical Engineering, Graduate School of Engineering, Kyushu University
  • Yamamoto, Tsuyoshi
    Department of Chemical Engineering, Graduate School of Engineering, Kyushu University
  • Tsuge, Yoshifumi
    Department of Chemical Engineering, Graduate School of Engineering, Kyushu University
  • Watanabe, Takayuki
    Department of Chemical Engineering, Graduate School of Engineering, Kyushu University
  • Kishida, Masahiro
    Department of Chemical Engineering, Graduate School of Engineering, Kyushu University

Bibliographic Information

Other Title
  • As(<scp>iii</scp>) removal through catalytic oxidation and Fe(<scp>iii</scp>) precipitation

Description

To remove arsenite (As(III)) from wastewater effectively, the catalytic oxidation of As(III) to arsenate (As(V)) and As(V) precipitation with iron ions (Fe(III)) was investigated. The Pt/SiO_2 catalyst functioned as a reaction site for As(III) with oxygen in the atmosphere. The combination of the Pt/SiO_2 catalyst and Fe(III) precipitant improved the removal of As(III) in the precipitate; Pt/SiO_2 worked as both an As(III) oxidation site and precipitation site with Fe(III) precipitant.

Journal

  • RSC Advances

    RSC Advances 12 (26), 16843-16846, 2022-06-07

    Royal Society of Chemistry (RSC)

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