PROBLEMS OF ATOMIC SCIENCE AND TECHNOLOGY
Series: Nuclear and Reactor Constants

since 1971

Русский (РФ)

ISSN 2414-1038 (online)

OPTIMIZATION OF SOLID-PHASE TECHNOLOGY FOR PROCESSING RADIOACTIVE WASTE OF ALKALINE COOLANTS DURING DECOMMISSIONING OF FAST REACTORS

EDN: MWOGJQ

Authors & Affiliations

Smykov V.B.1, Alekseev V.V.1, Legkikh K.G.1, Zhdanov V.P.1, Kovrezhkin N.V.2, Guch I.V.2, Nikitin E.M.3, Semenov D.A.3, Rybin A.N.3, Semin S.D.3, Ermakov A.I.3
1 A.I. Leypunsky Institute for Physics and Power Engineering, Obninsk, Russia
2 Obninsk Engineering Center NIKIMT Branch of “Research and Design Institute of Installation Technology – Atomstroy”, Obninsk, Russia
3 TVEL Fuel Company of Rosatom, Moscow, Russia

Smykov V.B.1 – Head of Department, Decommissioning Department, Cand. Sci. (Tech.).
Alekseev V.V.1 – Chief Researcher, Dr. Sci. (Tech.).
Legkikh K.G.1 – Head of Laboratory of Chemical-Engineering and Radiochemical Research. Contacts: 1, pl. Bondarenko, Obninsk, Kaluga Region, 249033. Tel.: +7 (484) 399-70-00 (add. 88-03), e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it..
Zhdanov V.P.1 – Chief Specialist, Decommissioning Department.
Kovrezhkin N.V.2 – Head of Department.
Guch I.V.2 – Head of Department.
Nikitin E.M.3 – Director of Decommissioning Programs.
Semenov D.A.3 – Head of Decommissioning Department for Scientific and Technical Documentation.
Rybin A.N.3 – Head of Group.
Semin S.D.3 – Head of Department.
Ermakov A.I.3 – Chief Expert, Cand. Sci. (Chem.).

Abstract

By the decision of the Board of the Ministry of Atomic Energy dated 05.03.1997 (announced by Order of the Minister No. 130), the BR-10 research reactor was designated as a technological testing ground for the implementation of the fast reactors with alkaline liquid metal coolants decommissioning program. To solve the problem of conditioning alkaline waste in IPPE JSC, it was proposed to use the dump granulated slag of the furnaces of the copper smelting plant of the Karabash combine, containing iron oxides FeO (35–38 %) and Fe2O3 (12 %), silicon SiO2 (34–36 %), aluminum Al2O3 (5–8 %), calcium CaO and magnesium MgO (6 to 10–15 % in total) are the main components of the slag, the impurities are ZnO oxides (2.0–2.5 %) and CuO (up to 0.5 %).
Experimental studies of the solid-phase technology (SPT) method were carried out on the stands MINERAL-3, MINERAL-30, MINERAL-50. The SPT technology is used for processing radioactive waste of alkaline liquid metal coolants on the BR-10 IR at the MAGMA-SPT module. The results indicate the prospects for the development of this method and the creation on its basis of an optimized technology for processing radioactive waste of alkaline liquid metal coolants.
The construction of pilot production of sufficient productivity on the basis of a fully functional sample of the MINERAL-100/150 series installation being created for its implementation in the decommissioning programs of reactor plants with alkaline liquid metal reactor plants BOR-60, BN-350, BN-600, with preliminary testing of optimized technology on a sample of the MINERAL-100/150 installation on the IR BR-10 of IPPE JSC.

Keywords
solid-phase oxidation, alkaline liquid metal coolant, MINERAL plant, fast reactors with sodium coolant, 137Cs isotope leaching rate

Article Text (PDF, in Russian)

References

UDC 621.181.6

Problems of Atomic Science and Technology. Series: Nuclear and Reactor Constants, 2025, no. 3, 3:20