Final Technical Report

Sobecky, Patricia A ; Taillefert, Martial

关键词: bioremediation;    uranium immobilization;    microbial;    phosphate;   

DOI  :  10.2172/1072019
RP-ID  :  None
PID  :  OSTI ID: 1072019

美国|英语

来源: SciTech Connect

【 摘 要 】

This final technical report describes results and findings from a research project to examine the role of microbial phosphohydrolase enzymes in naturally occurring subsurface microorganisms for the purpose of promoting the immobilization of the radionuclide uranium through the production of insoluble uranium phosphate minerals. The research project investigated the microbial mechanisms and the physical and chemical processes promoting uranium biomineralization and sequestration in oxygenated subsurface soils. Uranium biomineralization under aerobic conditions can provide a secondary biobarrier strategy to immobilize radionuclides should the metal precipitates formed by microbial dissimilatory mechanisms remobilize due to a change in redox state.