Статья

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

Jungseung KimOak Ridge National Laboratory, P.O. Box 2008, Oak Ridge, Tennessee 37831-6181, United StatesCostas TsourisOak Ridge National Laboratory, P.O. Box 2008, Oak Ridge, Tennessee 37831-6181, United StatesYatsandra OyolaOak Ridge National Laboratory, P.O. Box 2008, Oak Ridge, Tennessee 37831-6181, United StatesChristopher J. JankeOak Ridge National Laboratory, P.O. Box 2008, Oak Ridge, Tennessee 37831-6181, United StatesRichard T. MayesOak Ridge National Laboratory, P.O. Box 2008, Oak Ridge, Tennessee 37831-6181, United StatesSheng DaiOak Ridge National Laboratory, P.O. Box 2008, Oak Ridge, Tennessee 37831-6181, United StatesGary A. GillMarine Sciences Laboratory, Pacific Northwest National Laboratory, Sequim, Washington 98382, United StatesLi‐Jung KuoMarine Sciences Laboratory, Pacific Northwest National Laboratory, Sequim, Washington 98382, United StatesJordana R. WoodMarine Sciences Laboratory, Pacific Northwest National Laboratory, Sequim, Washington 98382, United StatesKey‐Young ChoeMarine Sciences Laboratory, Pacific Northwest National Laboratory, Sequim, Washington 98382, United StatesErich SchneiderNuclear and Radiation Engineering Program, The University of Texas at Austin, University Station C2200, Austin Texas 78712, United StatesHarry LindnerNuclear and Radiation Engineering Program, The University of Texas at Austin, University Station C2200, Austin Texas 78712, United States

2014en

ABI

Аннотация

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.

Перевод пока недоступен

Идентификаторы

DOI: 10.1021/ie4039828

Цитирования и источники

Цитирований: 3Использованных источников: 0

Показатели — AkademScholar