Conveners
4.3 Partitioning and Sustainability
- Amparo Gonzalez-Espartero (IAEA staff)
- Andrei Shadrin (Bochvar Institute)
315.
ADVANCED FLOW-SHEET FOR PARTITIONING OF TRIVALENT ACTINIDES FROM FAST REACTOR HIGH ACTIVE WASTE
Mr
Balija Sreenivasulu
(IGCAR)
6/28/17, 3:30 PM
Track 4. Fuel Cycle: Sustainability, Environmental Considerations and Waste Management Issues
ORAL
Partitioning of radiotoxic elements present in the high-level liquid waste (HLLW) followed by transmutation of them (P&T strategy) into stable or short-lived products in accelerated driven systems or fast-reactors is a viable option for the safe management and minimizing the radiotoxicity of HLLW. In this context, a typical high-active waste (HAW) arising from reprocessing of spent carbide...
Prof.
Alexei Potapov
(Institute of High Temperature Electrochemistry)
6/28/17, 3:50 PM
Track 4. Fuel Cycle: Sustainability, Environmental Considerations and Waste Management Issues
ORAL
The scientific and technological aspects of the pyrochemical recycling of uranium-plutonium nitride nuclear fuel used in the circuited nuclear fuel cycle on the basis of nuclear power plant with fast neutron reactors were considered (in the framework of "Breakthrough" Project). It was expected that the developed pyrochemical technology allows recycling spent nuclear fuel with high energy...
Dr
Liudmila Tkachenko
(Khlopin Radium Institute)
6/28/17, 4:10 PM
Track 4. Fuel Cycle: Sustainability, Environmental Considerations and Waste Management Issues
ORAL
The fast reactors and related fuel cycle technologies are extensively development at present. It is possible to transmutate the radiotoxic nuclides, contained in PUREX raffinates (primarily minor actinides), in fast reactors. This raises the challenge of minor actinides recovery from PUREX raffi-nats.
The process for actinides (III) partition with solvent based on...
Mr
Máté Gergely Halász
(Budapest University of Technology and Economics, Institute of Nuclear Techniques)
6/28/17, 4:30 PM
Track 4. Fuel Cycle: Sustainability, Environmental Considerations and Waste Management Issues
ORAL
Due to the high computational cost of detailed burn-up calculations, most scenario codes use burn-up tables or parametrized few group cross-sections to calculate fuel depletion in reactors. As a special parametrization approach, a fast and flexible burn-up scheme called FITXS was developed at the BME Institute of Nuclear Techniques, which is based on the fitting of one-group cross-sections as...
Andrei Shadrin
(Bochvar Institute), Dr
Vitaliy Vidanov
(INSTITUTION «ITC «PRORYV» PROJECT»)
6/28/17, 4:50 PM
Track 4. Fuel Cycle: Sustainability, Environmental Considerations and Waste Management Issues
ORAL
Modern technology for reprocessing of spent nuclear fuel (SNF), corresponding to a closed fuel cycle concept is developed in the framework of the «PRORYV» PROJECT». This technology require separation of Am from Cm and REE. Americium can be transmutated in fast reactors.
Two-stage technology of Cm and Am separation from REE-TPE concentrate was tested on Mayak Production Association. Used...
Dr
Edwin Lyman
(Union of Concerned Scientists)
6/28/17, 5:10 PM
Track 4. Fuel Cycle: Sustainability, Environmental Considerations and Waste Management Issues
ORAL
Some advocates of electrometallurgical reprocessing (or “pyroprocessing”) of spent nuclear fuel argue that the technology has many advantages relative to aqueous reprocessing methods, including cost savings, safety benefits, and increased proliferation resistance. However, to date there has been very little actual operating experience with production-scale electrometallurgical processes,...
