Electrolyte-promoted Easy Separation of Suspended TiO2 Particles with a Solids Retaining Type Centrifuge in Combination with Photoreactor to Degrade Dibutyl Phthalate

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  • Kiyoshi Hasegawa
    Department of Chemical and Biochemical Engineering, Faculty of Engineering, Toyama University3190 Gofuku, Toyama
  • Tomonori Ito
    Department of Chemical and Biochemical Engineering, Faculty of Engineering, Toyama University3190 Gofuku, Toyama
  • Wakako Nakamura
    Department of Chemical and Biochemical Engineering, Faculty of Engineering, Toyama University3190 Gofuku, Toyama
  • Machi Nagai
    Department of Chemical and Biochemical Engineering, Faculty of Engineering, Toyama University3190 Gofuku, Toyama
  • Shigehiro Kagaya
    Department of Chemical and Biochemical Engineering, Faculty of Engineering, Toyama University3190 Gofuku, Toyama

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<jats:title>Abstract</jats:title> <jats:p>Adjustment of a TiO2 suspension containing electrolytes to the isoelectric point (IEP) enabled easy separation of fine particles of TiO2 by a solids-retaining type centrifuge, which was combined with a batch photoreactor. Optimum separation conditions and reusability of the recovered TiO2 for the degradation of dibutyl phthalate (DBP) were examined. For synthesized waste water samples (5 μM DBP in tap and well water), suspended TiO2 was easily separated without addition of electrolytes after degradation of DBP.</jats:p>

収録刊行物

  • Chemistry Letters

    Chemistry Letters 32 (7), 596-597, 2003-06-17

    Oxford University Press (OUP)

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