Contact

Porträt Dr. Müller, Katharina; FWOG

Dr. Katharina Müller

Head Surface Processes
k.muellerAthzdr.de
Phone: +49 351 260 2439

iCross: Integrity of nuclear waste repository systems - Cross-scale system understanding and analysis


Financed by:
Federal Ministry of Education and Research (02NUK053B)
 
Helmholtz Association of German Research Centres (SO-093)
Period:
2018/07 – 2022/03
Cooperation partners:
  • Forschungszentrum Jülich (FZJ) (coordinator)
  • Helmholtz Centre Potsdam – German Research Centre for Geosciences (GFZ)
  • Helmholtz-Zentrum Dresden-Rossendorf (HZDR)
  • Karlsruhe Institute of Technology (KIT)
  • Helmholtz Centre for Environmental Research (UFZ Leipzig)

Short Project Description:

The interdisciplinary project "iCross" bundles research and development expertise in the Helmholtz Association on the subjects of radiochemistry, geosciences, life sciences and numerical simulations of environmental systems in a cross-research project. Processes that have not been fully understood from the molecular to the regional scale are examined, evaluated and described. The aim is to plan and carry out laboratory experiments, to derive parameters and to model relevant processes across scales using advanced simulation methods (that require several numerical upscaling treatments). The simulations are validated experimentally, partly in underground laboratories. The focus here is on work in the Mt. Terri rock laboratory (CH; Opalinus clay), where a new test tunnel is being excavated with the strong participation of German partners. Further investigations take place in the Grimsel rock laboratory (CH; crystalline rock). The work focuses on host rocks (crystalline and clay), which were not the major focus of German repository research in the past.

iCross Referenz-Bild ©Copyright: Harald Foerstendorf <br />(Sources: KIT, UFZ, BGR, NAGRA, VISLAB)

Foto: Harald Foerstendorf (Sources: KIT, UFZ, BGR, NAGRA, VISLAB)

Selected research topics at the HZDR:

Publications

Journal papers:

Microscopic and spectroscopic bioassociation study of uranium(VI) with an archaeal Halobacterium isolate

Hilpmann, S.; Bader, M.; Steudtner, R.; Müller, K.; Stumpf, T.; Cherkouk, A.

Related publications


Effects of surface roughness and mineralogy on the sorption of Cm(III) on crystalline rock

Demnitz, M.; Molodtsov, K.; Schymura, S.; Schierz, A.; Müller, K.; Jankovsky, F.; Havlova, V.; Stumpf, T.; Schmidt, M.

Related publications


New insights into U(VI) sorption onto montmorillonite from batch sorption and spectroscopic studies at increased ionic strength

Stockmann, M.; Fritsch, K.; Bok, F.; Marques Fernandes, M.; Baeyens, B.; Steudtner, R.; Müller, K.; Nebelung, C.; Brendler, V.; Stumpf, T.; Schmeide, K.


Heterogeneous sorption of radionuclides predicted by crystal surface nanoroughness

Yuan, T.; Schymura, S.; Bollermann, T.; Molodtsov, K.; Chekhonin, P.; Schmidt, M.; Stumpf, T.; Fischer, C.

Related publications


Effective diffusivity prediction of radionuclides in clay formations using an integrated upscaling workflow

Yuan, T.; Fischer, C.

Related publications


Influence of Muscovite (001) Surface Nanotopography on Radionuclide Adsorption Studied by Kinetic Monte Carlo Simulations

Schabernack, J.; Kurganskaya, I.; Fischer, C.; Luttge, A.

Related publications


Molecular-level speciation of Eu(III) adsorbed on a migmatized gneiss as determined using µTRLFS

Molodtsov, K.; Demnitz, M.; Schymura, S.; Jankovský, F.; Havlová, V.; Schmidt, M.


Simulation of diffusive uranium transport and sorption processes in the Opalinus Clay

Hennig, T.; Stockmann, M.; Kühn, M.


Crystal surface reactivity analysis using a combined approach of X-ray micro-computed tomography and vertical scanning interferometry

Kahl, W.-A.; Yuan, T.; Bollermann, T.; Bach, W.; Fischer, C.


Temporal evolution of dissolution kinetics of polycrystalline calcite

Bollermann, T.; Fischer, C.


Conference contributions (Oral presentations and posters):

Microscopic and spectroscopic investigations of uranium(VI) reduction by Desulfosporosinus hippei DSM 8344

Hilpmann, S.; Drobot, B.; Steudtner, R.; Hübner, R.; Bok, F.; Stumpf, T.; Cherkouk, A.

  • Poster
    Interdisziplinäres Forschungssymposium für die Sicherheit der nuklearen Entsorgung, 10.-12.11.2021, Berlin, Deutschland

Microscopic and spectroscopic study of the uranium(VI) reduction by a sulfate-reducing microorganism

Hilpmann, S.; Steudtner, R.; Hübner, R.; Roßberg, A.; Prieur, D.; Bauters, S.; Kvashnina, K.; Stumpf, T.; Cherkouk, A.

  • Poster (Online presentation)
    TransRet2020, 12.-13.10.2021, Karlsruhe, Deutschland

Radionuclide transport modelling: The Smart Kd-concept in reactive transport codes

Stockmann, M.; Lu, R.; Gehrke, A.; Montoya, V.; Noseck, U.; Brendler, V.

  • Poster (Online presentation)
    TransRet2020 Workshop, 12.-13.10.2021, Karlsruhe, Germany

Mineral Dissolution Rates: Importance of Surface Reactivity

Schabernack, J.; Fischer, C.

  • Poster (Online presentation)
    2. Tage der Standortauswahl, 11.-12.02.2021, Freiberg, Germany

Uranium(VI) reduction by a sulphate-reducing microorganism in Opalinus Clay pore water

Hilpmann, S.; Drobot, B.; Steudtner, R.; Bok, F.; Stumpf, T.; Cherkouk, A.

  • Lecture (Conference) (Online presentation)
    Tage der Standortauswahl Freiberg 2021, 11.-12.02.2021, Freiberg, Deutschland
  • Poster (Online presentation)
    Tage der Standortauswahl Freiberg 2021, 11.-12.02.2021, Freiberg, Deutschland

Competing Effect of Transport versus Surface Reactivity on Mineral Dissolution Rates

Schabernack, J.; Fischer, C.

  • Poster (Online presentation)
    DMG VIRTUAL POSTER-SESSION 2020, 30.11.-03.12.2020, Virtuell, Deutschland

Radionuclide sorption in heterogeneous systems: Form model mineral oxides to complex rock

Schierz, A.; Stockmann, M.; Jordan, N.; Foerstendorf, H.; Steudtner, R.; Bok, F.; Brendler, V.

  • Poster
    GDCh, Jahrestagung der Fachgruppe Nuklearchemie 2019, 25.-27.09.2019, Dresden, Germany

Radionuclide sorption in heterogeneous systems: From model mineral oxides to complex rocks

Schierz, A.; Stockmann, M.; Jordan, N.; Foerstendorf, H.; Steudtner, R.; Bok, F.; Brendler, V.

  • Poster
    Goldschmidt2019, 18.-23.08.2019, Barcelona, Spain

Investigations of the interactions of a Halobacterium isolate with uranium using different microscopic and spectroscopic methods

Hilpmann, S.; Bader, M.; Bachran, M.; Steudtner, R.; Schmidt, M.; Stumpf, T.; Cherkouk, A.

  • Poster
    Jahrestagung der Fachgruppe Nuklearchemie 2019, 25.-27.09.2019, Dresden, Deutschland

Formation and evolution of porosity pattern in a potential host rock

Bollermann, T.

  • Poster
    KompOst Doktorandenseminar 2018, 13.12.2018, Zittau, Deutschland


Contact

Dr. Katharina Müller

Head Surface Processes
k.muellerAthzdr.de
Phone: +49 351 260 2439

Dr. Ariette Schierz

a.schierz@hzdr.de
Phone: +49 351 260 2759