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Processing Ceramics for Radioactive Waste Immobilisation
Advances in Science and Technology, 2006The basic principles of incorporating high level radioactive waste into glasses, ceramics and glass composite materials (GCMs) are described. Current UK technology uses glass wasteforms for the products of reprocessing while some waste streams may be incorporated in ceramics and difficult or legacy wastes will require the development of other ...
William Edward Lee +3 more
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The EIX process for radioactive waste treatment
Progress in Nuclear Energy, 1998In Electrochemical Ion-exchange (EIX), the absorption and elution behaviour of ion-exchangers incorporated into an electrode is controlled by an external potential. A negative potential applied to a weak acid cation exchanger electrode causes cations to be absorbed progressively to low concentrations as the feed passes up through the cell — thus giving
Mark D. Neville +2 more
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Radioactive sludge waste management: calcination process
2022Introduction In La Hague’s facilities, the decontamination of radioactive effluents produced several thousand tons of sludge. Due to the large variety of decontamination treatments performed, the sludge is charged with various reactive species such as nickel ferrocyanides (ppFeNi), sulfates, nitrates, CoS and car-bonates.
Vaubaillon, Sylvain +2 more
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Mössbauer Spectroscopy Applied to Radioactive Waste Processing
Hyperfine Interactions, 1998Two original evaluations of the embedding process and of the hydration promotion in cements using only Mossbauer data have been proposed. Quantitative factors connected with the Mossbauer parameters and describing the hydration degree, the quality of the precipitate bonds in the cement matrix, as well as the influence of the additional organic ...
G. Filoti +4 more
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One-Stage Pyrometallurgical Processing of Metal Radioactive Waste
Ecology and Industry of Russia, 2018A method for the one-stage pyrometallurgical processing of metallic radioactive waste (MRW) is proposed at the experimental melting unit MAGMA, which confirmed the feasibility of implementing the proposed technological scheme in semi-industrial conditions to produce deactivated metal suitable for economic use without restrictions.
Yu.A. Gudim, V.A. Grachev, A.A. Golubev
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РАДИАЦИОННАТА БЕЗОПАСНОСТ В СЪВРЕМЕННИЯ СВЯТ
Radiation is the process of emitting positrons, alpha or beta particles, from so-called unstable isotopes – a variety of stable elements. The discovery by science at the end of the 19th century gave a huge boost to a number of technologies and spheres of life. However, after years of experiments, it became clear that radioactive radiation is not at
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Radiation is the process of emitting positrons, alpha or beta particles, from so-called unstable isotopes – a variety of stable elements. The discovery by science at the end of the 19th century gave a huge boost to a number of technologies and spheres of life. However, after years of experiments, it became clear that radioactive radiation is not at
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Process flow problems and perspectives upon radioactive metal waste processing
2021In the process of decommissioning of nuclear power facilities large metal waste quantities are generated which have to be processed in an appropriate manner. An optimal approach, adopted in a world-wide scale, is their meltdown at the final stage of treatment.
Atanasov, Ilian, Todorov, Stoil
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Microbially mediated redox processes in natural analogues for radioactive waste
Journal of Contaminant Hydrology, 2002Natural analogues allow scientists to investigate biogeochemical processes relevant to radioactive waste disposal that occur on time scales longer than those that may be studied by time-limited laboratory experiments. The Palmottu U-Th deposit in Finland and the Bangombé natural nuclear reactor in Gabon involve the study of natural uranium, and are ...
Shelley A, Haveman, Karsten, Pedersen
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Increasing Operational Efficiency in a Radioactive Waste Processing Plant
ASME 2009 12th International Conference on Environmental Remediation and Radioactive Waste Management, Volume 1, 2009The solid waste plant at Harwell in Oxfordshire, contains a purpose built facility to input, assay, visually inspect and sort remote handled intermediate level radioactive waste (RHILW). The facility includes a suite of remote handling cells, known as the head-end cells (HEC), which waste must pass through in order to be repackaged.
T. W. Turner, S. N. Watson
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Processes for treatment of liquid radioactive waste containing seawater
Radiochemistry, 2017The main sources of formation of liquid radioactive waste (LRW) containing seawater are determined, and the main problems arising in management of such waste are analyzed. Sorption methods for removing long-lived Cs and Sr radionuclides from highly mineralized (>1 g L–1) LRW are determined.
V. A. Avramenko +5 more
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