| 摘要 |
PROBLEM TO BE SOLVED: To efficiently separate, in particular, iron oxides, to eliminate a problem of circulation (clad recycle) of the iron oxides in a treatment system, and to allow favorable final disposal for a condensate filter back-washing water, paying attention to a mooted point in the disposal of the condensate filter back-washing water. SOLUTION: This radioactive waste treatment system has a means (for example, an incineratable disposable filter) for reducing a concentration of a substance contained in a supernatant liquid of the condensate filter back- washing water fed from a back-washed sludge separating tank to a low-electric- conductivity waste treatment system, in a system wherein the condensate filter back-washing water in the radioactive waste treatment system in a boiling water type nuclear power plant using, as a condensate filter a non-precoat type filter such as a hollow fiber membrane filter and a pleat filter is standing- treated in the back-washed sludge separating tank, and wherein the supernatant liquid of the standing-treated back-washing water is treated by the low-electric- conductivity waste treatment system.
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