Results 21 to 30 of about 17,731 (291)

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

Permeability Characteristics of Bedrock Weathering Layer in Southern Coast Area of China

Shuitu baochi tongbao, 2022
[Objective] The permeability characteristics of the bedrock weathering layer were determined in order to propose a corresponding experimental method of hydraulic conductivity, and thereby provide a scientific reference for the performance assessment of ...
Xinyu Fu, Jiebiao Li, Qun Wu, Tongtong Li, Jingbo Zhao   +4 more
doaj   +1 more source

Evidence of the Generation of Isosaccharinic Acids and Their Subsequent Degradation by Local Microbial Consortia within Hyper-Alkaline Contaminated Soils, with Relevance to Intermediate Level Radioactive Waste Disposal [PDF]

, 2015
The contamination of surface environments with hydroxide rich wastes leads to the formation of high pH (>11.0) soil profiles. One such site is a legacy lime works at Harpur Hill, Derbyshire where soil profile indicated in-situ pH values up to pH 12. Soil
Andrew P. Laws, Rout, Simon P., Eva J. Garratt, Garratt, Eva J., John Gunn (699626), Garratt Eva J., Humphreys P.N., Humphreys, Paul, Simon P. Rout, Charles C.J., Gunn John, Garratt E.J., Christopher J. Charles, Rout Simon P., Charles, Christopher, Garratt, Eva, Simon P Rout, Christopher J. Charles (189546), Christopher J Charles, Paul N. Humphreys (636478), Rout S.P., Gunn, John, Paul N. Humphreys, Charles Christopher J., Simon P. Rout (636472), Andrew P. Laws (636474), John Gunn, Paul N Humphreys, Laws, Andrew P., Eva J Garratt, Gunn J., Andrew P Laws, Humphreys Paul N., Laws Andrew P., Humphreys, Paul N., Eva J. Garratt (699625), Laws A.P., Rout, Simon, Charles, Christopher J.   +38 more
core   +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

International Low Level Waste Disposal Practices and Facilities [PDF]

, 2011
The safe management of nuclear waste arising from nuclear activities is an issue of great importance for the protection of human health and the environment now and in the future.
Nutt, W.M. (Nuclear Engineering Division)
core   +1 more source

Design of a renewable hydroxyapatite-biocarbon composite for the removal of uranium(VI) with high-efficiency adsorption performance

Biochar, 2022
Highlights 1. The recyclable high-efficiency Hap@BC was prepared for U(VI) removal. 2. The adsorption capacity for U(VI) of Hap@BC-10% achieved 834.8 mg/g. 3. The U(VI) extraction efficiency reached 99.9% in dynamic adsorption. 4.
Jun Liao, Ting Xiong, Ling Ding, Ying Xie, Yong Zhang, Wenkun Zhu   +5 more
doaj   +1 more source

Cloud history can change water–ice–surface interactions of oxide mineral aerosols: a case study on silica [PDF]

Atmospheric Chemistry and Physics, 2020
Mineral aerosol particles nucleate ice, and many insights have been obtained on water freezing as a function of mineral surface properties such as charge or morphology.
A. Abdelmonem, S. Ratnayake, J. D. Toner, J. Lützenkirchen   +3 more
doaj   +1 more source

Carbon dioxide-enhanced metal release from kerogen

Scientific Reports, 2022
Heavy metals released from kerogen to produced water during oil/gas extraction have caused major enviromental concerns. To curtail water usage and production in an operation and to use the same process for carbon sequestration, supercritical CO2 (scCO2 ...
Tuan A. Ho, Yifeng Wang
doaj   +1 more source

Thermodynamic description of Eu(NO3)3-NaNO3-H2O and Eu(NO3)3-Mg(NO3)2-H2O systems. Solubility experiments and full dissociation Pitzer models [PDF]

RSC Advances
Solubility studies in the systems Eu(NO3)3-NaNO3-H2O and Eu(NO3)3-Mg(NO3)2-H2O were conducted at T = (22 ± 2) °C including solid phase identification by X-ray powder diffraction and Schreinemakers' method. Iso-water activity data of both systems at 25 °C
F. Häusler, P. F. dos Santos, A. Lassin, X. Gaona, K. Garbev, S. Touzelet, Y. Cartigny, M. Altmaier, B. Madé   +8 more
doaj   +1 more source