Results 1 to 10 of about 249 (71)

THEREDA: Thermodynamic Reference Database for Geochemical Modelling of Nuclear Waste Disposal under Saline Conditions – Application, Overview, and New Developments [PDF]

Applied Geochemistry
The Thermodynamic Reference Database (THEREDA) is designed for geochemical calculations in the context of repositories for radioactive waste under high-saline conditions. For this purpose, it adopts the Pitzer ion-interaction approach.
Helge Moog, Marcus Altmaier, Frank Bok, Vinzenz Brendler, Daniela Freyer, Xavier Gaona, Sven Hagemann, Claudia Joseph, George-Dan Miron, Melanie Pannach, Julia Sohr, Wolfgang Voigt, Marie Voss, Laurin Wissmeier   +13 more
semanticscholar   +4 more sources

THEREDA – Thermodynamic Reference Database [PDF]

Safety of Nuclear Waste Disposal, 2021
Abstract. Part of the process to ensure the safety of radioactive waste disposal is the predictive modeling of the solubility of all relevant toxic components in a complex aqueous solution. To ensure the reliability of thermodynamic equilibrium modeling as well as to facilitate the comparison of such calculations done by different institutions, it is ...
Moog, H. C., Scharge, T., Seher, H., Bok, F., Brendler, V., Richter, A., Wissmeier, L., Altmaier, M., Gaona, X., Cevirim-Papaioannou, N., Freyer, D., Pannach, M., Sohr, J., Voigt, W.   +13 more
semanticscholar   +10 more sources

Solid–liquid equilibria of Sorel phases and Mg(OH)2 in the system Na-Mg-Cl-OH-H2O. Part II: Pitzer modeling

Frontiers in Nuclear Engineering, 2023
For geochemical calculations of solubility equilibria between Sorel phases, Mg(OH)2, and oceanic salt solutions, the polythermal THEREDA dataset (based on the HMW model at 25°C) was extended.
Daniela Freyer, Melanie Pannach, Wolfgang Voigt   +2 more
doaj   +2 more sources

Thermodynamic Reference Database (THEREDA) – Present Activities [PDF]

Goldschmidt Abstracts, 2020
Moog, H. C., Bok, F., Freyer, D., Gaona, X., Thoenen, T.   +4 more
openaire   +3 more sources

Converting the Temperature Dependent Pitzer Parameter of THEREDA for TOUGHREACT [PDF]

Goldschmidt Abstracts, 2020
Holger Seher, Torben Weyand, Guido Bracke, Helge C. Moog   +3 more
openaire   +2 more sources

Data compilation and evaluation for U(IV) and U(VI) for the Thermodynamic Reference Database THEREDA [PDF]

, 2015
THEREDA (Thermodynamic Reference Database) is a collaborative project, which has been addressed this challenge. The partners are Helmholtz-Zentrum Dresden-Rossendorf, Karlsruhe Institute of Technology (KIT-INE), Gesellschaft für Anlagen- und Reaktorsicherheit Braunschweig mbH (GRS), TU Bergakademie Freiberg (TUBAF) and AF-Consult Switzerland AG (Baden,
Richter, A., Bok, F., Brendler, V.
openaire   +4 more sources

THEREDA – Thermodynamic Reference Database

Safety of Nuclear Waste Disposal, 2023
Abstract. Part of the process to ensure the safety of radioactive waste disposal is the predictive modeling of the solubility of all relevant toxic components in a complex aqueous solution. To ensure the reliability of thermodynamic equilibrium modeling and to facilitate the comparison of such calculations done by different institutions, it is ...
Moog, H. C., Scharge, T., Seher, H., Bok, F., Brendler, V., Richter, A., Wissmeier, L., Henneberg, M., Altmaier, M., Gaona, X., Cevirim-Papaioannou, N., Freyer, D., Pannach, M., Sohr, J., Voigt, W.   +14 more
openaire   +3 more sources

Geochemical benchmark tests to validate the conversion of thermodynamic data for TOUGHREACT

Safety of Nuclear Waste Disposal, 2021
. According to the ongoing site selection process for a repository for high-level radioactive waste in Germany, rock salt, clay and crystalline rock are possible host rocks.
Torben Weyand, H. Seher, G. Bracke
semanticscholar   +1 more source

Radionuclide geochemistry: solubility and thermodynamics in a HLW repository [PDF]

, 2021
Deep geological disposal is the internationally favoured option to isolate high-level nuclear waste (HLW) from the biosphere and to minimise the potential radiological risk for future generations.
Altmaier, Marcus, Fellhauer, David, Gaona, Xavier, Geckeis, Horst   +3 more
core   +2 more sources

Theoretical electron-impact-ionization cross section for Fe11+ forming Fe12+ [PDF]

, 2012
We have calculated cross sections for electron impact ionization (EII) of P-like Fe11+ forming Si-like Fe12+. We have used the flexible atomic code (FAC) and a distorted-wave (DW) approximation.
Kwon, D. H., Savin, Daniel Wolf
core   +2 more sources