| | U reduction by
push-pull techniques
(Areas 1 and 2)
(more...) | U bioreduction
(Area 3)
(more...) | U immobilization
(Area 2)
(more...) |
| Goal | Learn if stimulating naturally occurring microorganisms leads them to effectively reduce uranium and technetium. |
Learn if ground water conditioned to remove chemicals that interfere with bioremediation then can be treated to reduce uranium. |
Learn if microbes can be used to trap uranium in small- and medium- sized sediment pores so that it doesn't migrate into ground water. |
| Contaminants of interest | Uranium, technetium | Uranium | Uranium |
| FRC study area | Areas 1, 2 | Area 3 | Area 2 |
| Zone of study | variable - shallow saprolite and/or fill; down to approximately 9 m depth | saprolite transition; approximately 11-14 m depth | shallow fill; down to approximately 6 m depth |
| Year of project inception | 2001 | 2001 | 2003 |
| Principal investigators | Jack Istok (Oregon State), Lee Krumholz (Oklahoma) |
Craig Criddle (Stanford), Phil Jardine (ORNL) |
Tim Scheibe (PNNL), Eric Roden (Wisconsin), Scott Brooks (ORNL) |
