G - Physics – 21 – F
Patent
G - Physics
21
F
182/150
G21F 9/04 (2006.01)
Patent
CA 1223218
- 15 - Abstract of the Disclosure nitric acid solution of spent fuel is primarily clarified by a centrifugal clarifier so as to separate insoluble fission particles each having a size of 1.04 µm or more from the solution. The primary clarified liquid is again clarified by a pulse filter device so as to remove small particles each having a size between 0.8 µm and 1.04 µm. The filter removes particles having a size smaller than a critical particle size of the centrifugal clarifier. Therefore, the centrifugal clarifier removes most of the fission product particles, and the filter device removes only the small fission particles. The replacement frequency of the filter is decreased, and the small particles are removed to obtain a high-quality clarified liquid.
446546
Ridout & Maybee Llp
Tokyo Shibaura Denki Kabushiki Kaisha
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