Oxidation of naturally reduced uranium in aquifer sediments by dissolved oxygen and its potential significance to uranium plume persistence

James A Davis1, Richard L Smith2, John Karl Bohlke3, Noah Jemison4, Huang Xiang5, Deborah A Repert6, Xiu Yuan1 and Kenneth Hurst Williams7, (1)Lawrence Berkeley National Laboratory, Berkeley, CA, United States, (2)USGS Colorado Water Science Center Boulder, Boulder, CO, United States, (3)USGS, 431 National Center, Reston, VA, United States, (4)University of Illinois at Urbana Champaign, Urbana, IL, United States, (5)Peking University, Institute of Water Sciences, Beijing, China, (6)USGS Water Mission Area, Boulder, United States, (7)Lawrence Berkeley National Lab, Berkeley, CA, United States