Uptake of Uranium from Seawater by Amidoxime-Based Polymeric Adsorbent: Field Experiments, Modeling, and Updated Economic Assessment

被引:199
作者
Kim, Jungseung [1 ]
Tsouris, Costas [1 ]
Oyola, Yatsandra [1 ]
Janke, Christopher J. [1 ]
Mayes, Richard T. [1 ]
Dai, Sheng [1 ]
Gill, Gary [2 ]
Kuo, Li-Jung [2 ]
Wood, Jordana [2 ]
Choe, Key-Young [2 ]
Schneider, Erich [3 ]
Lindner, Harry [3 ]
机构
[1] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA
[2] Pacific NW Natl Lab, Marine Sci Lab, Sequim, WA 98382 USA
[3] Univ Texas Austin, Nucl & Radiat Engn Program, Austin, TX 78712 USA
关键词
TRACE-ELEMENTS; PRECONCENTRATION; RECOVERY; WATER;
D O I
10.1021/ie4039828
中图分类号
TQ [化学工业];
学科分类号
0817 ;
摘要
Uranium recovery from seawater has been investigated for several decades for the purpose of securing nuclear fuel for energy production. In this study, field column experiments have been performed at the Marine Sciences Laboratory of the Pacific Northwest National Laboratory (PNNL) using a laboratory-proven, amidoxime-based polymeric adsorbent developed at the Oak Ridge National Laboratory (ORNL). The adsorbent was packed either in in-line filters or in flow-through columns. The maximum amount of uranium uptake from seawater was 3.3 mg of U/g of adsorbent after 8 weeks of contact between the adsorbent and seawater. This uranium adsorption amount was about 3 times higher than the maximum amount achieved in this study by a leading adsorbent developed at the Japan Atomic Energy Agency (JAEA). Both adsorbents were tested under similar conditions. The results were used to update an assessment of the cost of large-scale recovery of uranium from seawater using the ORNL adsorbent. The updated uranium production cost was estimated to be reduced to $610/kg of U, approximately half the cost estimated for the JAEA technology.
引用
收藏
页码:6076 / 6083
页数:8
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