| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for filtering radioactive waste water capable of extending the service life of a film longer than that in the past. SOLUTION: Cross-flow filtration of radioactive water water, such as detergent drain or concentrated waste liquid, is performed by circulating the water by a circulation pump 4 through a filter 2 equipped with ceramic films 3. In performing the cross-flow filtration, the flow rate of filtered water is kept constant at a filter outlet 5 by means of a constant flow valve 6 or the like. This suppresses clogging of the ceramic films 3, and thus the service life can be extended longer than that in the paste.
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