| 摘要 |
PROBLEM TO BE SOLVED: To provide a decontamination waste liquid processing method capable of transforming a secondary waste as an organic substance into a secondary waste as an inorganic substance without increasing the amount of the secondary waste.SOLUTION: There is provided a decontamination waste liquid processing method which comprises: an oxidation process S10 in which an oxidizing agent containing permanganic acid is added in treatment water in which an object to be decontaminated is immersed to oxidize and elute chrome from the object to be decontaminated; a decomposition process S20 in which organic acid is added in the treatment water W1 to decompose the permanganic acid after the oxidation process S10; an inorganic ion exchanger water passage process S30 in which an inorganic ion exchanger that absorbs manganese is placed in the treatment water W2 after the decomposition process 20; a reduction process S40 in which the organic acid is added in the treatment water W2 to reduce and elute iron from the object to be decontaminated after the inorganic ion exchanger water passage process S30; a removal process S50 in which radionuclides eluted into the treatment water W3 is removed after the reduction process S40. |
