Immobilization of Radionuclides in The Hanford Vadose Zone by Incorporation in Solid Phases

Mullins, Gary ; Traina, Samuel

University of California (United States)

关键词: Iron Compounds;    Radioisotopes;    Reduction;    12 Management Of Radioactive Wastes, And Non-Radioactive Wastes From Nuclear Facilities;    Soil Chemistry;   

DOI  :  10.2172/823366
RP-ID  :  DOE/ER/15010
RP-ID  :  FG07-99ER15010
RP-ID  :  823366

美国|英语

来源: UNT Digital Library

【 摘 要 】

The objective of this study was to examine the homogeneous and heterogeneous reduction of Cr(VI) by dissolved Fe(II) and Fe(II)-containing minerals under conditions thought to be indicative of HLW fluids (high pH, high ionic strength and high temperature). Many investigators have reported the homogeneous reduction of Cr(VI) by dissolved FE(ii), but less information is available for Ph values > 8. The first part of this effort evaluated the ability of dissolved Fe(II) to reduce dissolved Cr(VI) in hyperalkaline solutions.