Journal
SEPARATION SCIENCE AND TECHNOLOGY
Volume 48, Issue 3, Pages 367-387Publisher
TAYLOR & FRANCIS INC
DOI: 10.1080/01496395.2012.712599
Keywords
uranium adsorbents; uranium adsorption; uranium from seawater
Funding
- U.S. DOE Office of Nuclear Energy [DE-AC05-00OR22725]
- Oak Ridge National Laboratory
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The recovery of uranium (U) from seawater has been investigated for over six decades in efforts to secure uranium sources for future energy production. The majority of the research activities have focused on inorganic materials, chelating polymers, and nanomaterials. Previous studies of uranium adsorption from aqueous solutions, mainly seawater, are reviewed here with a focus on various adsorbent materials, adsorption parameters, adsorption characterization, and marine studies. Continuous progress has been made over several decades, with adsorbent loadings approaching 3.2 mg U/g adsorbent in equilibrium with seawater. Further research is needed to improve first, the viability including improved capacity, selectivity, and kinetics, and second, the sorbent regeneration for multicycle use. An overview of the status of the uranium adsorption technology is provided and future research needs to make this technology commercially competitive are discussed.
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