Mathematical Process-Control Model of Radioactive Waste Disposal by Self-Immersion in Geological Rocks
Sign Up to like & getrecommendations! Published in 2021 at "Atomic Energy"
DOI: 10.1007/s10512-021-00749-0
Abstract: A method of deep burial of long-lived radioactive waste and spent nuclear fuel by melting of the geological mass due to the residual heat release of radionuclides confined in a container is analyzed. A variant… read more here.
Keywords: waste; process; waste spent; nuclear fuel ... See more keywords
Thermal plasma technology for radioactive waste treatment: a review
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Radioanalytical and Nuclear Chemistry"
DOI: 10.1007/s10967-020-07269-4
Abstract: In this paper, a review of radioactive wastes treatment using thermal plasma technology is presented as a treatment method for radioactive waste management. Virtually all waste streams can be treated by the thermal plasma technologies,… read more here.
Keywords: thermal plasma; plasma; plasma technology; treatment ... See more keywords
Geochemical conditions for the formation of Mg silicates phases in bentonite and implications for radioactive waste disposal
Sign Up to like & getrecommendations! Published in 2018 at "Applied Geochemistry"
DOI: 10.1016/j.apgeochem.2018.03.012
Abstract: Abstract The present study evaluates the formation of magnesium silicates phases as a result of the alkaline alteration of FEBEX bentonite in long-term experiments. The results are relevant in the context of radioactive waste disposal… read more here.
Keywords: silicates phases; radioactive waste; waste disposal; formation silicates ... See more keywords
Cesium diffusion in mortars from different cements used in radioactive waste repositories
Sign Up to like & getrecommendations! Published in 2018 at "Applied Geochemistry"
DOI: 10.1016/j.apgeochem.2018.09.001
Abstract: Abstract Cement-based materials are widely used for stabilizing and conditioning radioactive waste in low- and intermediate-level repositories. In this study, the adequacy of four different types of mortars, obtained from four different commercial cements, CEM… read more here.
Keywords: diffusion; radioactive waste; diffusion mortars; mortars different ... See more keywords
Contribution of the results of the CEBAMA project to decrease uncertainties in the Safety Case and Performance Assessment of radioactive waste repositories
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DOI: 10.1016/j.apgeochem.2019.104479
Abstract: Abstract Cement-based materials are key materials used in repositories of low, intermediate and high-level radioactive waste in any host-rock concept. These materials are used for waste conditioning, liners, seals as well as structural components. The… read more here.
Keywords: cement based; waste; safety; radioactive waste ... See more keywords
Signs of in-situ geochemical interactions at the granite–concrete interface of a radioactive waste disposal
Sign Up to like & getrecommendations! Published in 2021 at "Applied Geochemistry"
DOI: 10.1016/j.apgeochem.2021.104881
Abstract: Abstract Eleven unique core samples from the National Radioactive Waste Repository of Hungary, Bataapati were studied in this work. The samples all cross the granite–concrete interface and have been drilled from around 275 m depth from… read more here.
Keywords: concrete interface; signs situ; interface; granite concrete ... See more keywords
Vermiculite as a potential component of the engineered barriers in low- and medium-level radioactive waste repositories
Sign Up to like & getrecommendations! Published in 2018 at "Applied Clay Science"
DOI: 10.1016/j.clay.2018.04.010
Abstract: Abstract Vermiculite (VMT) was tested as a low-cost, eco-friendly adsorbent for the removal of cesium(I), strontium(II), europium(III), americium(III), and technetium(VII) radionuclides from aqueous solutions. The raw material was characterized and checked as potential adsorbent. The… read more here.
Keywords: level radioactive; iii; radioactive waste; waste ... See more keywords
A new finite volume scheme preserving positivity for radionuclide transport calculations in radioactive waste repository
Sign Up to like & getrecommendations! Published in 2018 at "International Journal of Heat and Mass Transfer"
DOI: 10.1016/j.ijheatmasstransfer.2018.01.023
Abstract: Abstract In order to simulate a far field model used in geological radioactive waste repository, a new finite volume scheme preserving positivity on arbitrary convex polygonal meshes with second order accuracy is proposed in this… read more here.
Keywords: new finite; positivity; radioactive waste; finite volume ... See more keywords
Immobilization of NPP evaporator bottom high salt-bearing liquid radioactive waste into struvite-based phosphate matrices.
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DOI: 10.1016/j.jhazmat.2021.125902
Abstract: The high salt-bearing liquid radioactive waste (evaporator bottoms, EB) makes up the most voluminous NPP waste and needs solidification. In the paper presented, we introduce a novel formation process study of the struvite-based phosphate matrices… read more here.
Keywords: phosphate; salt bearing; high salt; waste ... See more keywords
Time-dependent reliability analysis of overpacks for high-level radioactive waste
Sign Up to like & getrecommendations! Published in 2019 at "Nuclear Engineering and Design"
DOI: 10.1016/j.nucengdes.2019.110156
Abstract: Abstract In France, nuclear energy is extensively used for electricity production, and consequently high-level radioactive waste are generated by the fleet of nuclear powerplants. This waste is planned to be disposed of in a deep… read more here.
Keywords: waste; level radioactive; radioactive waste; analysis ... See more keywords
Release and speciation of 14C during the corrosion of activated steel in deep geological repositories for the disposal of radioactive waste
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DOI: 10.1017/rdc.2018.138
Abstract: ABSTRACT Carbon-14 (radiocarbon, 14C) is an important radionuclide in the inventory of radioactive waste in many disposal programs due to its significant dose contributions in safety assessments for geological repositories. Activated steels from nuclear reactors… read more here.
Keywords: geological repositories; radioactive waste; steel; speciation ... See more keywords