Article
Energy & Fuels
Jiri Landa, Milan Hokr
Summary: This work presents a procedure to obtain characteristic data from the transport path using postprocessing of 3D flow and transport models. The obtained parameters can be used for safety analyses or to narrow down candidate sites for geological disposal of spent nuclear fuel. Additionally, a lumped parameter model can be set up using these parameters to accurately simulate the transport path and perform further calculations.
Article
Nuclear Science & Technology
D. S. Wisnubroto, H. Zamroni, R. Sumarbagiono, G. Nurliati
Summary: Indonesia has policies and strategies for managing radioactive waste and spent nuclear fuel, but faces challenges in sustainability, disposal, transport, and special attention to waste from isotope production. The management of NORM also needs revision and improvement.
NUCLEAR ENGINEERING AND TECHNOLOGY
(2021)
Article
Engineering, Geological
Elena Abramova, Nadezhda Popova, Grigory Artemiev, Kirill Boldyrev, Konstantin Kazakov, Dmitry Kryuchkov, Alexey Safonov
Summary: This article discusses the impact of microorganisms on the stability of cement, clay, and steel engineering safety barriers in a deep geological repository for radioactive waste in Russia. The study found that microbial processes such as steel corrosion, cement degradation, and changes in clay properties are likely to occur. The article also highlights the importance of clay materials in engineering barrier safety and proposes biocidal additives to suppress microbial activity.
ENGINEERING GEOLOGY
(2023)
Review
Materials Science, Multidisciplinary
David S. Hall, Mehran Behazin, W. Jeffrey Binns, Peter G. Keech
Summary: The review discusses the favoured design concept of permanent disposal of high level nuclear waste in containers and considers the corrosion processes that can affect these packages. It demonstrates the methodology used to calculate corrosion depth in a Canadian geological repository environment and suggests areas for future study. Various corrosion sub-allowances are considered, and the expected depth of corrosion over time is evaluated for a specific site condition.
PROGRESS IN MATERIALS SCIENCE
(2021)
Article
Nuclear Science & Technology
H. J. Choi, J. Y. Lee, D. K. Cho
Summary: The KBS-3 type geological repository, proposed 40 years ago for nuclear waste disposal, relies on a copper disposal canister and a bentonite buffer as an engineered barrier for long-term safety. The buffer's main functions are corrosion protection and minimizing radionuclide release. However, the current design makes it challenging to retrieve the spent nuclear fuel. This study re-evaluates the buffer dimensions for radionuclide migration and corrosion resistance, finding that reducing the thickness and height of the buffer does not significantly affect the corrosion lifetime of the canister.
PROGRESS IN NUCLEAR ENERGY
(2022)
Article
Nuclear Science & Technology
Jongtae Jeong, Jung-Woo Kim, Dong-Keun Cho
Summary: In this study, a computer program called ACom was developed to combine spent nuclear fuels (SNFs) stored in canisters and ensure an even distribution of decay heat per canister. The results confirmed that ACom can achieve an even distribution of decay heat in disposal scenarios for SNF deep geological repositories (DGRs), with a lower maximum decay heat compared to estimated canisters using a reference SNF. This research conclusion is significant for improving the disposal efficiency of DGRs.
NUCLEAR ENGINEERING AND TECHNOLOGY
(2022)
Article
Environmental Sciences
Elizaveta Klein, Susie M. L. Hardie, Wolfgang Kickmaier, Ian G. McKinley
Summary: A critical aspect of selecting sites for deep geological repositories for high-level radioactive waste is their ability to slow down the migration of radionuclides released from engineered barriers. Models play a crucial role in connecting field observations and laboratory studies on rock/water/radionuclide interactions. Despite remaining uncertainties, utilizing knowledge from anthropogenically contaminated sites can enhance safety cases for geological repositories.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Geochemistry & Geophysics
Jin Ma, Marek Pekala, Peter Alt-Epping, Barbara Pastina, Susanna Maanoja, Paul Wersin
Summary: In this study, a 3D numerical model is developed to assess the corrosion depth and evolution of sulfide fluxes in the Finnish spent nuclear fuel repository concept. Long-term simulations predict a heterogeneous corrosion of the canister with a max. corrosion depth of 1.3 mm. The study also highlights the importance of organic carbon and Fe(III) oxide contents in the bentonite for the corrosion evolution.
APPLIED GEOCHEMISTRY
(2022)
Article
Chemistry, Multidisciplinary
Barbara Pastina, Jay A. LaVerne
Summary: This passage discusses the importance of long-term safety assessment of spent nuclear fuel disposal in deep geologic repositories, and presents a conceptual model to explain radionuclide release rates. It suggests that current estimations of radionuclide release rates may be overestimated, and provides suggestions for future research directions.
APPLIED SCIENCES-BASEL
(2021)
Article
Materials Science, Multidisciplinary
Sou Watanabe, Youko Takahatake, Hiromichi Ogi, Takeshi Osugi, Takumi Taniguchi, Junya Sato, Tsuyoshi Arai, Akihiko Kajinami
Summary: This study proposed a procedure for the treatment of spent scintillation cocktail, including adsorption of radioactivity and solidification of residual liquid wastes. Experimental results demonstrated excellent adsorption performance of Ni onto silica-based adsorbent through batch-wise adsorption, and chelate reaction was suggested as the adsorption mechanism by EXAFS analysis. Alkaline activate material successfully solidified the liquid waste, and analysis revealed the presence of organic compounds inside the matrix, with only 1% leakage by a leaching test.
JOURNAL OF NUCLEAR MATERIALS
(2023)
Article
Engineering, Geological
Marcelo Sanchez, Beatrice Pomaro, Antonio Gens
Summary: This study focuses on the THM analysis of an experiment designed to study the long-term response of a disposal concept for high-level radioactive waste and spent fuel. The numerical model accurately predicted the state and evolution of the barrier, confirming the model's capability to capture the transient THM processes. The combination of experimental and numerical investigations has led to a better understanding of the THM behavior of this complex system.
Article
Energy & Fuels
Masashi Nishikawa
Summary: This study finds that neutral respondents are more open to conditions for accepting GDFs and are more sensitive to external shocks compared to non-neutral respondents. The presence of neutral respondents, who may act as decisive players in collective decision-making, highlights the importance of considering their viewpoints in public decision-making about GDF site selection.
Article
Geography
Igor Soejono, Zita Bukovska, Blanka Leva, Zuzana Skacelova, Petra Hejtmankova, Alexandra Guy, Jan Jelinek, Ondrej Svagera, Jakub Kryl, Jan Holecek, Otmar Petyniak, Jan Hosek, Vratislav Pecina, Petr Mixa, Jozef Urik
Summary: The study used a combination of different methods such as geological and hydrogeological mapping, morphostructural analysis, and geophysical methods to construct a new geological map and 3D model of a site in southwestern Czech Republic. These provided unique constraints for understanding the subsurface geological and tectonic architecture. The study presented a multi-disciplinary research strategy for detailed geological characterization, which can be applied to other sites with similar geological environments.
Article
Energy & Fuels
Seungbin Yoon, Woo Nyun Choi, Jaehoon Byun, Hee Reyoung Kim
Summary: The feasibility of synthesizing graphene quantum dots from spent resin in a decommissioned nuclear power plant was experimentally analyzed, and the resulting reduction in disposal cost was estimated. Graphene quantum dots were successfully synthesized using uncontaminated ion-exchange resin, and various analytical techniques confirmed the possibility of recycling the spent resin. The estimated reduction in disposal cost indicates a significant decrease, showcasing the potential financial benefits of this recycling method.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2022)
Article
Chemistry, Physical
K. A. Daniels, J. F. Harrington, P. Sellin, S. Norris
Summary: Bentonites are commonly proposed for use in the geological disposal of high heat generating radioactive wastes. This study examined the effect of elevated temperature on the development of swelling and swelling pressure of sodium-activated MX80 bentonite samples, finding that even under extreme conditions, the bentonite was able to swell and completely fill void spaces. Heating the bentonite reduced test duration by about 60%, likely due to a reduction in the viscosity of the test permeant at higher temperatures.
APPLIED CLAY SCIENCE
(2021)
Article
Chemistry, Analytical
Eva Viglasova, Martin Dano, Michal Galambos, Adrian Krajnak, Ol'ga Rosskopfova, Pavol Rajec
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY
(2017)
Article
Chemistry, Analytical
Lj Matovic, A. Dukic, M. Omeraevic, K. Kumric, O. Rosskopfova, A. Hamarova, P. Rajec
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY
(2017)
Correction
Chemistry, Multidisciplinary
Vladimir Fristak, Barbora Michalekova-Richveisova, Eva Viglasova, Libor Duriska, Michal Galambos, Eduardo Moreno-Jimenez, Martin Pipiska, Gerhard Soja
JOURNAL OF THE IRANIAN CHEMICAL SOCIETY
(2018)
Article
Environmental Sciences
Vladimir Fristak, Martin Pipiska, Michal Hubenak, Magdalena Kadlecikova, Michal Galambos, Gerhard Soja
WATER AIR AND SOIL POLLUTION
(2018)
Article
Engineering, Environmental
Eva Viglasova, Michal Galambos, Zuzana Dankova, Lukas Krivosudsky, Christian L. Lengauer, Rebecca Hood-Nowotny, Gerhard Soja, Annette Rompel, Marek Matik, Jaroslav Briancin
Article
Chemistry, Physical
Martin Dano, Eva Viglasova, Michal Galambos, Karel Stamberg, Jan Kujan
Article
Chemistry, Physical
Martin Dano, Eva Viglasova, Karel Stamberg, Michal Galambos, Dusan Galanda
Summary: The study evaluated biochar samples prepared from bamboo, focusing on structural properties, batch and dynamic sorption experiments, and potentiometric titrations. The research found that the biochar samples exhibited good adsorption properties for (TcO4-)-Tc-99m, with excellent model fitting results.
Review
Chemistry, Physical
Vipul Vilas Kusumkar, Michal Galambos, Eva Viglasova, Martin Dano, Jana Smelkova
Summary: The research on radioactive waste management is focused on mitigating the hazardous effects of radionuclides on the environment. Various techniques are used for separating these nuclides from the environment, with adsorbents being a key area of study. Ion-imprinted polymers are able to selectively remove specific metal ions from solution, making them promising materials in this field.
Article
Engineering, Chemical
Haseeb Ullah, Eva Viglasova, Michal Galambos
Summary: Highly crystalline CdS nanorods were successfully synthesized through a facile, one-step solvothermal method and characterized for structural, morphological, and optical properties. The CdS nanorods exhibited excellent photodegradation efficiency for RhB dye under visible light irradiation, with a maximum degradation of 88.4% in 120 minutes. The photodegradation process followed a pseudo-first-order kinetic model, and a possible mechanism was proposed in the study.
Article
Environmental Sciences
Sami Ullah, Altaf Ur Rahman, Fida Ullah, Abdur Rashid, Tausif Arshad, Eva Viglasova, Michal Galambos, Niyaz Mohammad Mahmoodi, Haseeb Ullah
Summary: The study evaluated the potential of three different natural inorganic clays for removing malachite green dye from aqueous solutions. Results showed that Langmuir isotherm model and pseudo-first-order kinetic model best described the adsorption behavior of MG, and natural inorganic clays with higher surface area can be effective adsorbents for removing MG dye.
Article
Chemistry, Physical
Suleyman Inan, Vipul Vilas Kusumkar, Michal Galambos, Eva Viglasova, Ol'ga Rosskopfova, Martin Dano
Summary: This study focused on the use of Turkish perlite for the sorptive removal of Ba-133 and Cs-137 from aqueous solution. The results showed that the maximum removal percentages for Ba-133 and Cs-137 were 88.2% and 78.7% at pH 6 and pH 9, respectively. Sorption equilibrium was achieved relatively rapidly and experimental data fit well with pseudo-second-order and intraparticle diffusion models. Turkish perlite demonstrated preferential sorption of Ba-133 over Cs-137.
Article
Chemistry, Multidisciplinary
Vipul Vilas Kusumkar, Shalu Atri, Suleyman Inan, Maros Gregor, Tomas Roch, Hryhorii Makarov, Maria Caplovicova, Michal Galambos, Eva Viglasova, Gustav Plesch, Olivier Monfort
Summary: MXene, a multilayered material, has shown high adsorption capacity for Ba-133 and Cs-137 in radioactive conditions.
CHEMICAL COMMUNICATIONS
(2023)
Article
Engineering, Chemical
Adrian Krajnak, Eva Viglasova, Michal Galambos, Lukas Krivosudsky
DESALINATION AND WATER TREATMENT
(2018)
Article
Engineering, Chemical
Eva Viglasova, Michal Galambos, David Divis, Zuzana Dankova, Martin Dano, Lukas Krivosudsky, Christian L. Lengauer, Marek Matik, Jaroslav Briancin, Gerhard Soja
DESALINATION AND WATER TREATMENT
(2020)
Article
Chemistry, Multidisciplinary
Lukas Krivosudsky, Michal Galambos
