紫外線 : 光触媒処理による水中細菌の不活化  [in Japanese] Inactivation of Bacteria in Water by Ultraviolet Irradiation and Photocatalyst  [in Japanese]

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Abstract

Inactivation of bacteria in water by the phtocatalytic oxidation and repression of the photoreactivation were studied. By counting bacteria with Standard Plate Count (SPC) method and heterotrophic bacteria in the river water, the inactivation and photoreactivation effects under the condition of 254nm-ultraviolet irradiation and that of the black light (maximum intensity: 352nm (300nm-440nm) ) irradiation was examined. The inactivation effect by 254nm-ultraviolet irradiation was particularly remarkable than the black light irradiation, while the oxidative degradation potential was almost equivalent. And it was proved that the photoreactivation of bacteria could be suppressed by using the photocatalyst with 254nm-ultraviolet irradiation. Generation of aldehydes was confirmed in the 254nm-ultraviolet irradiation with photocatalyst of tap water, river water, and groundwater, however, their amount were very limited in typical reaction time for inactivation.

Journal

  • Journal of Japan Society on Water Environment

    Journal of Japan Society on Water Environment 24(4), 233-239, 2001-04-10

    Japan Society on Water Environment

References:  18

Cited by:  4

Codes

  • NII Article ID (NAID)
    10008004840
  • NII NACSIS-CAT ID (NCID)
    AN10372439
  • Text Lang
    JPN
  • Article Type
    Journal Article
  • ISSN
    09168958
  • NDL Article ID
    5739352
  • NDL Source Classification
    ZN5(科学技術--建設工学・建設業--都市工学・衛生工学)
  • NDL Call No.
    Z16-1045
  • Data Source
    CJP  CJPref  NDL  J-STAGE 
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