Clarification of solutions before the extractive reprocessing of the fuel elements of water-moderated water-cooled power reactors
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Solutions of fuel elements for water-moderated water-cooled power reactors filter poorly in view of the high degree of dispersion of the precipitate (predominantly particles of graphite with a size down to 6 μ). Acceptable mean clarification rates are attained with a combined treatment of the solution with a flocculant (gelatin) and an auxiliary filter aid (perlite). It is advisable to use classified perlite.
Due to the large compressibility of the precipitate, the filtration rate depends only weakly on the pressure (3 kg/cm2 is sufficient).
A physical model of the process has been developed, which permits describing the acceleration of the process under the action of an auxiliary filter aid.
Irradiation practically does not change the filtration characteristics of the solutions.
KeywordsGraphite Filtration Gelatin Compressibility Physical Model
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- 1.A. S. Zaimovskii, V. V. Kalashnikov, and I. S. Golovnin, Heat-Evolving Elements of Atomic Reactors [in Russian], Atomizdat, Moscow (1966), p. 358.Google Scholar
- 2.V. B. Shevchenko, A. A. Khonikevich, É. V. Renard, et al., IV Geneva Conference, USSR Report No. 435 (1971).Google Scholar
- 3.A. N. Kondrat'ev, M. M. Kodos, and A. A. Khonikevich, in: Proceedings of SEV Symposium on Investigations in the Field of the Reprocessing of Irradiated Fuel, KAÉ ChSSR, Prague (1972), p. 177.Google Scholar
- 4.V. B. Shevchenko et al., ibid., Proceedings of SEV Symposium on Investigations in the Field of the Reprocessing of Irradiated Fuel, KAÉ ChSSR, Prague (1972), p. 259.Google Scholar
- 5.M. F. Shevchenko, At. Énerg.,33, No. 2, 625 (1972).Google Scholar
- 6.V. A. Zhuzhikov, Filtration [in Russian], Khimiya, Moscow (1968).Google Scholar
- 7.L. S. Aksel'rod et al., Teor. Osnovy Khim. Tekhnol.,6, No. 2, 310 (1972).Google Scholar