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Russian Physics Journal

, Volume 51, Issue 12, pp 1344–1355 | Cite as

Luminescence investigations of the degradation of 2-methylphenol and 4-methylphenol in water

  • O. N. Tchaikovskaya
  • E. A. Karetnikova
  • I. V. Sokolova
  • T. V. Sokolova
  • E. S. Fedorova
  • N. S. Kudryasheva
Condensed-State Physics

Fluorescent characteristics of the photo- and biotransformations of 2-methylphenol, 4-methylphenol and their mixtures in water exposed to uv radiation of various sources and to Penicillium tardum H-2 culture have been studied. The toxicity of these solutions has also been investigated by means of bioluminescent testing. Preliminary exposure of a 4-methylphenol solution (10−3 M) to uv radiation with λ ∼ 308 nm or to the radiation of a mercury lamp inhibited the subsequent microbiological degradation. Efficient decomposition of methylphenol molecules in the mixture was detected when it was exposed to the radiation of a mercury lamp or to 222-nm radiation and then subject to biodecomposition. The irradiation of solutions of 2-methylphenol and 4-methylphenol and their low-concentration mixtures with 308-nm uv radiation or with the radiation of a mercury lamp resulted in detoxication of the solutions. Extreme toxicity was shown by 4-methylphenol solutions on exposure to uv radiation with λ ∼ 222 nm.

Keywords

uv irradiation methylphenols excilamps biodecomposition toxicity bioluminescent testing 

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Copyright information

© Springer Science+Business Media, Inc. 2008

Authors and Affiliations

  • O. N. Tchaikovskaya
    • 1
    • 2
  • E. A. Karetnikova
    • 3
  • I. V. Sokolova
    • 1
    • 2
  • T. V. Sokolova
    • 2
  • E. S. Fedorova
    • 4
  • N. S. Kudryasheva
    • 4
  1. 1.V. D. Kuznetsov Siberian Physical-Technical Institute of Tomsk State UniversityTomskRussia
  2. 2.Tomsk State UniversityTomskRussia
  3. 3.Institute for Water and Environmental Problems of the Far Easten Branch of the Russian Academy of SciencesKhabarovskRussia
  4. 4.Institute of Biophysics of the Russian Academy of SciencesKrasnoyarskRussia

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