Results 11 to 20 of about 17,695 (292)

Geological Disposal of Nuclear Waste: a Primer [PDF]

Elements, 2016
The back-end of the nuclear fuel cycle has become the Achilles Heel of nuclear power. After more than 50 years of effort, there are, at present, no operating nuclear waste repositories for the spent nuclear fuel from commercial nuclear power plants or for the high-level waste from the reprocessing of spent fuel.
Ewing, RC, Whittleston, RA, Yardley, BWD
openaire   +3 more sources

Nuclear Clay

Worldwide Waste
Amidst a period marked by growing volumes of nuclear waste and ongoing discussions regarding its management, technologies that utilise natural materials for containment are gaining prominence. This article takes a historical view of Russian nuclear waste
Andrei Stsiapanau
doaj   +2 more sources

The waterbodies of the halo-volcanic Dallol complex: earth analogs to guide us, where to look for life in the universe

Frontiers in Microbiology, 2023
Microbes are the Earth life forms that have the highest degree of adaptability to survive, live, or even proliferate in very hostile environments. It is even stated that microbes can cope with any extreme physico-chemical condition and are, therefore ...
Hugo Moors, Mieke De Craen, Mieke De Craen, Carla Smolders, Ann Provoost, Natalie Leys   +5 more
doaj   +1 more source

Long-term radionuclide retention in the near field: collaborative R&D studies within EURAD focusing on container optimisation, mobility, mechanisms and monitoring

EPJ Nuclear Sciences & Technologies, 2022
Within EURAD, targeted collaborative research activities are performed to further deepen understanding regarding the long-term behaviour of key components in the repository near-field, assess specific radionuclide retention processes as well as ...
Altmaier Marcus, Bertrand Johan, Churakov Sergey, Diomidis Nikitas   +3 more
doaj   +1 more source

(De)politicization through safetization? Decision-making on nuclear waste management in Finland and France

, 2023
While both Finland and France are seen as forerunners in final disposal of nuclear waste, there are striking differences between the countries in public and policy discussion on the safety of the project.
Kari, Mika, Kojo, Matti, Markku Lehtonen, Mika Kari, Litmanen, Tapio, Matti Kojo, Lehtonen, Markku, Tapio Litmanen   +7 more
core   +1 more source

How well suited are current thermodynamic models to predict or interpret the composition of (Ba,Sr)SO4 solid-solutions in geothermal scalings?

Geothermal Energy, 2017
In this study, we report results of the analysis of a particularly interesting scaling sample from the geothermal plant in Neustadt-Glewe in northern Germany, which contained 19% Galena (PbS) and 81% of a heterogeneous assemblage of (Ba,Sr)SO4 crystals ...
Frank Heberling, Dieter Schild, Detlev Degering, Thorsten Schäfer   +3 more
doaj   +1 more source

The role of the 5f valence orbitals of early actinides in chemical bonding

Nature Communications, 2017
Understanding the chemistry of heavy radioactive elements is crucial to harnessing them for fuel and medicine. Here, the authors combine advanced X-ray spectroscopy and modelling to the study the chemical bonding of the 5fvalence orbitals of uranium ...
T. Vitova, I. Pidchenko, D. Fellhauer, P. S. Bagus, Y. Joly, T. Pruessmann, S. Bahl, E. Gonzalez-Robles, J. Rothe, M. Altmaier, M. A. Denecke, H. Geckeis   +11 more
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Selective Americium Separation: New Insights into the Complexation of Trivalent f-Elements with SO3-Ph-BTBP [PDF]

EPJ Web of Conferences
In the Americium selective (AmSEL) process, the N-donor ligand 3,3’,3’’,3’’’-([2,2’-bipyridine]-6,6’-diylbis(1,2,4-triazine-3,5,6-triyl))tetrabenzenesulfonate (SO3-Ph-BTBP) is used to selectively strip Am(III) from a N,N,N’,N’-tetraoctyl diglycolamide ...
Sauerwein Fynn S., Sittel Thomas, Geist Andreas, Panak Petra J., Wilden Andreas, Modolo Giuseppe   +5 more
doaj   +1 more source

Fifteen Years of Radionuclide Research at the KIT Synchrotron Source in the Context of the Nuclear Waste Disposal Safety Case

Geosciences, 2019
For more than 120 years, systematic studies of X-ray interaction with matter have been the basis for our understanding of materials—both of natural or man-made origin—and their structure-function relationships.
Jörg Rothe, Marcus Altmaier, Ron Dagan, Kathy Dardenne, David Fellhauer, Xavier Gaona, Ernesto González-Robles Corrales, Michel Herm, Kristina O. Kvashnina, Volker Metz, Ivan Pidchenko, Dieter Schild, Tonya Vitova, Horst Geckeis   +13 more
doaj   +1 more source

Opportunities and challenges of applying advanced X-ray spectroscopy to actinide and lanthanide N-donor ligand systems

Journal of Synchrotron Radiation, 2022
N-donor ligands such as n-Pr-BTP [2,6-bis(5,6-dipropyl-1,2,4-triazin-3-yl)pyridine] preferentially bind trivalent actinides (An3+) over trivalent lanthanides (Ln3+) in liquid–liquid separation. However, the chemical and physical processes responsible for
Tim Pruessmann, Peter Nagel, Laura Simonelli, David Batchelor, Robert Gordon, Bernd Schimmelpfennig, Michael Trumm, Tonya Vitova   +7 more
doaj   +1 more source