Results 21 to 30 of about 249 (71)

Thermodynamic description of U(IV) solubility and hydrolysis in chloride systems: Pitzer activity model for the system U$^{4+}$–Na$^+$–Mg$^{2+}$–Ca$^{2+}$–H$^+$–Cl$^-$–OH$^-$–H$_2$O(l) [PDF]

open access: yes
This study presents updated chemical, thermodynamic, and activity models for the system U$^{4+}$–Na$^+$–Mg$^{2+}$–Ca$^{2+}$–H$^+$–Cl$^-$–OH$^-$–H$_2$O(l)derived using the Pitzer formalism and a strict ion interaction approach.
Altmaier, M.   +4 more
core   +2 more sources

CSH-Phasenbildung und Löslichkeitsverhalten vor dem Hintergrund der Anwendung von Zement in Endlagerkonzepten für radioaktive Abfälle [PDF]

open access: yes, 2023
Die Bildung und Beständigkeit von CSH-Phasen wurde in Abhängigkeit von Zeit, Ca/Si-Verhältnis, Temperatur, SiO2-Reaktivität, w/s-Verhältnis und NaCl-Sättigung der Lösung untersucht.
Häusler, Felix
core   +1 more source

Experimentelle und model-theoretische Untersuchungen des chemisch-hydraulischen Verhaltens von Sorel- und Salzbeton als Dichtelemente im Steinsalz [PDF]

open access: yes, 2018
For the safe disposal of radioactive waste in Germany the enclosure of the waste in deep geological formations is foreseen. During mining activities, the host rock is penetrated by shafts and drifts, which must be plugged by sealing elements of adequate ...
Jantschik, Kyra
core   +1 more source

Sorption Modelling of Np(IV), Np(V), and Pd(II) on Illite and Montmorillonite Under High Ionic Strength Conditions [PDF]

open access: yes, 2017
A database is being developed by the NWMO that will be capable of predicting sorption for key elements of interest onto crystalline and sedimentary rocks in the highly saline groundwaters and porewaters at DGR depths in Ontario, Canada. Pd(II), Np(IV),
Goguen, Jared
core  

How to integrate geochemistry at affordable costs into reactive transport for large-scale systems: Abstract Book [PDF]

open access: yes, 2020
This international workshop entitled “How to integrate geochemistry at affordable costs into reac-tive transport for large-scale systems” was organized by the Institute of Resource Ecology of the Helmholtz-Zentrum Dresden Rossendorf in Feb-ruary 2020.
Brendler, V., Stockmann, M.
core   +1 more source

Annual Report 2011 - Institute of Radiochemistry [PDF]

open access: yes, 2012
The Institute of Radiochemistry (IRC) is one of the seven institutes of the Helmholtz-Zentrum Dresden-Rossendorf (HZDR). The research activities are fully integrated into the “Nuclear Safety Research Program” of the Helmholtz Association and focused on ...
Bernhard, G., Richter, A.
core   +1 more source

Impact of competing anions on the sorption of trivalent actinides onto clay mineral surfaces [PDF]

open access: yes, 2019
Sorption processes on mineral phases are a key mechanism in the context of the safe final disposal of radioactive waste in deep geological formations.
Rieder, Felix
core   +2 more sources

Annual Report 2010 - Institute for Nuclear Waste Disposal (KIT Scientific Reports ; 7600) [PDF]

open access: yes, 2010
Contributions collected in this report provide a representative overview of the scientific outcome of INE research activities in 2009. The structure of the report follows widely the organization of the institute according to research topics: Basic ...
Geckeis, H., Stumpf, T.
core   +2 more sources

Implementation of Carbonates and CO2 into the T-dependent Pitzer Model of Oceanic Systems. I. System NaOH – Mg(OH)2 – Ca(OH)2 – CO2 – H2O [PDF]

open access: yes
The THEREDA model has been extended by phases and species formed within the title system. A temperature range of 0 °C to 100 °C is considered. Most of the solubility products, Pitzer parameters and association constants were adapted from the model of ...
Voigt, Wolfgang
core   +1 more source

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