TREATMENT METHOD FOR RADIOACTIVE WASTEWATER GENERATED IN SEVERE ACCIDENT IN NUCLEAR POWER PLANT

摘要

The present invention provides a treatment method for radioactive wastewater. The method includes: step 1 of separating oil component or floating matter in radioactive wastewater from the radioactive wastewater; step 2 of removing at least one kind of main nuclide selected from a group consisting of Cs, Sr, and I in the radioactive wastewater from which the oil component or floating matter is separated in the first step, by an adsorption process and a precipitation process; step 3 of removing the remaining nuclide from the radioactive wastewater from which the main nuclide has been removed in the second step by an adsorption process and a precipitation process; and step 4 of removing fine particles from the radioactive wastewater from which the remaining nuclide is removed in the third step. According to the present invention, the treatment method for radioactive wastewater can treat a large amount of high radioactive wastewater, in preparation for the case when a large amount of cooling water needs to be supplied to a nuclear power plant in the event of an accident such as the cooling failure of the nuclear power plant.