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Application of concentrated ozone for decontamination of equipment in a nuclear power plant

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The destruction of chromium oxides on the surface of 12Kh18N10T steel by concentrated ozone at different temperatures is investigated. The optimal temperature of the process in water is found to be 95°C. The oxidation time of the surface layer of chromium oxides is 5–10 min. Subsequent ozone treatment of a steel surface for a 20-fold longer time did not show any substantive destruction of the surface of corrosionresistant steel. Ozone diffusion through the surface of a bubble to the metal surface plays a decisive role in the oxidation of chromium.

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References

  1. M. Enda, Y. Yaita, H. Saki, et al., “Application of ozone chemical decontamination (T-OZON) to the equipment for disposal,” in: 10th Intern. Conf. on Nuclear Engineering, Arlington,Virginia, USA, April 14–18, 2002, pp. 235–239.

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Authors and Affiliations

  1. Frumkin Institute of Physical Chemistry and Electrochemistry (IFKhE RAN), Russian Academy of Sciences, Moscow, Russia

    B. G. Ershov & A. F. Seliverstov

  2. Ozone Technologies Laboratory, Troitsk, Moscow Oblast, Russia

    A. G. Basiev & A. A. Basiev

  3. All-Russia Research Institute of Nuclear Power Plants, Moscow, Russia

    Yu. P. Korchagin

Authors
  1. B. G. Ershov
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  2. A. F. Seliverstov
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  3. A. G. Basiev
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  4. A. A. Basiev
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  5. Yu. P. Korchagin
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Additional information

Translated from Atomnaya Énergiya,Vol. 107, No. 2, pp. 72–75, August, 2009.

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Ershov, B.G., Seliverstov, A.F., Basiev, A.G. et al. Application of concentrated ozone for decontamination of equipment in a nuclear power plant. At Energy 107, 89–94 (2009). https://doi.org/10.1007/s10512-009-9201-7

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  • DOI: https://doi.org/10.1007/s10512-009-9201-7

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