It has become clear that the various environmental problems involving actinides are daunting and require multidisciplinary teams to resolve. These problems include remediation, stabilization and long-term stewardship of environmental radioactive contaminated sites from weapons production and nuclear accidents, as well as performance assessment of underground geological nuclear waste disposal sites.
This symposium will bring together scientists to develop a scientific basis on the chemical, biological, and geochemical processes controlling the behavior of actinides in natural environments to provide a status report on the current knowledge base as well as an outlook on issues requiring increased focus in the future. Examples will be presented of how fundamental science was used to resolve environment problems. the general topics include, but are not limited to:
●chemistry of actinides in natural aquatic systems including solubility, complexation, kinetic controlled processes, redox reaction, and colloid formation;
●geochemical interactions and transport phenomena including sorption/desorption; chemical-hydrological coupled processes, diffusion and migration, and colloid transport;
●methodology for actinide and interface speciation at environmentally relevant concentrations;
●immobilization/mobilization of actinides by microorganisms;
.bioengineering for actinide sequestration and biostabilization;
●influence of nuclear waste streams on actinide mobility in the environment;
.data base development and modeling.
|
