Subsurface Bio-Immobilization of Plutonium: Experiment and Model Validation Study

Reed, Donald ; Rittmann, Bruce

Los Alamos National Laboratory

关键词: Uranium;    12 Management Of Radioactive Wastes, And Non-Radioactive Wastes From Nuclear Facilities;    Actinides;    59 Basic Biological Sciences;    Simulation;   

DOI  :  10.2172/896087
RP-ID  :  ERSD-1024939-2006
RP-ID  :  None
RP-ID  :  896087

美国|英语

来源: UNT Digital Library

【 摘 要 】

The goal of this project is to conduct a concurrent experimental and modeling study centered on the interactions of Shewanella algae BrY with plutonium and uranium species and phases. The most important objective of this research is to investigate the long-term stability of bioprecipitated immobilized actinide phases under changing redox conditions in biologically active systems. The long-term stability of bio-immobilized actinides (e.g. by bio-reduction) is a key criteria that defines the utility and effectiveness of a remediation/containment strategy for subsurface actinide contaminants. Plutonium, which is the focus of this project, is the key contaminant of concern at several DOE sites.