Conveners
Chemistry of Nuclear Fuel Cycle 2
- Nicholas Evans (Loughborough University)
- Katja Schmeide (Helmholtz-Zentrum Dresden-Rossendorf, Institute of Resource Ecology)
Description
(1st ASGARD International Workshop)
Dr
Christophe Bruggeman
(Belgian Nuclear Research Centre SCK•CEN)
5/13/14, 8:30 AM
Chemistry of Nuclear Fuel Cycle / 1st ASGARD International Workshop
Invited
Humic colloid-associated migration of trivalent radionuclides in an argillaceous formation
C.BRUGGEMAN1*, N.MAES1, J.GOVAERTS1, S.SALAH1, L.WANG1, M.VAN GOMPEL1, S.BRASSINNES2
1Environment, Health and Safety Institute (EHS), SCK•CEN, Boeretang 200, B-2400 Mol, Belgium (*correspondence: cbruggem@sckcen.be)
2ONDRAF/NIRAS, Kunstlaan 14, 1210 Brussel, Belgium (s.brassinnes@nirond.be)
...
Dr
Dušan Vopálka
(Department of Nuclear Chemistry, Czech Technical University in Prague, Czech Republic)
5/13/14, 9:00 AM
Chemistry of Nuclear Fuel Cycle / 1st ASGARD International Workshop
Verbal
Understanding the migration processes in the near-field of the geological disposal of nuclear wastes at the basic level can help to develop models, which may be used in transport codes that can predict the migration of radioactive contaminants in the field scale. Cesium is well adsorbed by clay minerals and many studies concerning adsorption of cesium on different types of clay minerals have...
Ms
Maria Lübke
(Institute of Nuclear Chemistry; Johannes Gutenberg University Mainz (Germany))
5/13/14, 9:15 AM
Chemistry of Nuclear Fuel Cycle / 1st ASGARD International Workshop
Verbal
The long-lived radioactive isotope technetium-99 (99Tc, t1/2= 2.14•105 a) is a fission product of 235U and 239Pu and can be released to the environment from nuclear facilities, high-level radioactive waste repositories or as a result from nuclear weapon testing. Its geochemistry is dominated by the very mobile and soluble pertechnetate anion (TcO4-) under oxic, and a less mobile and less...
Radek Červinka
(ÚJV Řež, a. s., Czech Republic)
5/13/14, 9:30 AM
Chemistry of Nuclear Fuel Cycle / 1st ASGARD International Workshop
Verbal
Deep geological repositories (DGR) for the final disposal of spent nuclear fuel and high-level radioactive waste are primarily based on a multi-barrier concepts, consisting of a host rock as a natural geological barrier and an engineered barrier-system. Detailed investigations of suitable geological analogues may lead to a better understanding of the complex interrelations between transport...
Dr
Chuan-Pin Lee
(Department of Earth Sciences, National Cheng Kung University, Tainan, Taiwan)
5/13/14, 9:45 AM
Chemistry of Nuclear Fuel Cycle / 1st ASGARD International Workshop
Verbal
In order to assess the safety of an underground repository for high-level radioactive waste (HLW), reactive transport models designed to evaluate the fate and transport of radionuclides must be established based on experimental observation using both laboratory and on-site geological analyses. In this study, a systematic analysis of cesium (Cs) through crushed granite (0.297 - 0.840 mm) was...
