Studies of the Interaction Behavior of Humic Acids with Actinides in the Environment

Due to their abilities for complex and colloid formation as well as their redox properties, humic acids influence the migration of actinides in the environment. Therefore, risk assessments, related to the behavior of actinides in the environment, require basic knowledge on the interaction of humic acids with metal ions. Thus, the interaction of humic acids with actinides is studied, e.g., the Np(V)-humic acid-complexation and the redox stability of uranium(VI) humate complexes, applying synthetic and natural humic acids.