公开(公告)号：US12013499B2

公开(公告)日：2024-06-18

申请号：US17959811

申请日：2022-10-04

Applicant: KOREA ATOMIC ENERGY RESEARCH INSTITUTE

Inventor： Hong Joo Ahn ,  Hwan Seo Park ,  Jong Kwang Lee ,  Ki Rak Lee ,  Kwang Jae Son

IPC: B01D53/00 ,  B01D53/04 ,  G01N1/40 ,  G01N23/2202 ,  G01T1/167

CPC classification number: G01T1/167 ,  B01D53/04 ,  G01N1/4022 ,  G01N23/2202

Abstract: The present invention relates to a method for simultaneous analysis of radiocarbon and tritium, the method including (i) mixing a radioactive waste sample containing a radiocarbon nuclide and tritiated water, and an oxidizing agent; (ii) oxidizing the radiocarbon nuclide in the radioactive waste sample to a gas containing an oxide of the radiocarbon nuclide by the oxidizing agent while suppressing volatilization of compounds containing gamma radionuclides other than the radiocarbon nuclide and tritium; (iii) discharging the gas containing an oxide of the radiocarbon nuclide by injecting an inert gas to the mixture; (iv) vaporizing and discharging the tritiated water in the mixture; and (v) analyzing radioactivity of radiocarbon and tritium from the discharged gas containing an oxide of the radiocarbon nuclide and tritiated water, and an apparatus for analysis of the same.

公开(公告)号：US11810684B2

公开(公告)日：2023-11-07

申请号：US17410097

申请日：2021-08-24

Applicant: KOREA ATOMIC ENERGY RESEARCH INSTITUTE

Inventor： Ki Rak Lee ,  Hwan Seo Park ,  Geun Il Park ,  Hong Joo Ahn ,  Jung Hoon Choi ,  Hyun Woo Kang ,  In Tae Kim

IPC: G21F9/30 ,  B01D53/00 ,  B01D53/04 ,  G21F9/08 ,  G21F9/12

CPC classification number: G21F9/30 ,  B01D53/002 ,  B01D53/04 ,  G21F9/08 ,  G21F9/12 ,  B01D2253/10 ,  B01D2257/708 ,  B01D2259/40088

Abstract: The present invention relates to a method of separating and removing a radioactive nuclide, particularly, C-14 and tritium from a radioactive waste resin, and an equipment therefor. The method of treating a radioactive waste resin of the present invention includes recycling of condensate water from which a C-14 radionuclide in the condensate water is removed, into a treatment part for a radioactive waste resin.