Method and apparatus for removing radionuclides from radioactive metal waste
AssigneeDoosan Enerbility Co., Ltd.
InventorsKwang Soo Park, Dong Hun Pak, Tae Seob Lim, Chang Kyu Kim, Hae Woong Kim, Chung Sik Lim
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Abstract
According to an embodiment of the disclosure, a method of removing radionuclides from radioactive metal waste is provided including a preheating step of preheating atmospheric gas to a target temperature; a supply step of supplying the atmospheric gas to the radioactive metal waste upon the atmospheric gas being preheated to the target temperature in the preheating step; an oxidation step of oxidizing a surface region of the radioactive metal waste by the atmospheric gas; and a removal step of removing an oxidized layer generated in the oxidation step.
Claims20
A method of removing radionuclides from radioactive metal waste, comprising:
- a preheating step of preheating atmospheric gas to a target temperature;
- a supply step of supplying the atmospheric gas to the radioactive metal waste upon the atmospheric gas being preheated to the target temperature in the preheating step;
- an oxidation step of oxidizing a surface region of the radioactive metal waste by the atmospheric gas;
- and
- a removal step of removing an oxidized layer generated in the oxidation step.
An apparatus for removing radionuclides from radioactive metal waste, comprising:
- a preheating furnace to which atmospheric gas is supplied and in which a preheating burner is provided to preheat the atmospheric gas to a target temperature;
- an oxidation reactor into which the radioactive metal waste is loaded;
- an atmospheric gas supply pipe through which the preheating furnace and the oxidation reactor communicate;
- and
- an on/off valve which is provided in the atmospheric gas supply pipe and controls flow of the atmospheric gas to be supplied to the oxidation reactor,
- wherein oxidation occurs in a surface region of the radioactive metal waste upon supplying the atmospheric gas to the oxidation reactor by opening the on/off valve.
Dependencies are inferred from the claim text.