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J.T.M. Amphlett,S.E. Pepper,A.L. Riley,L.M. Harwood,J. Cowell,K.R. Whittle,T.S. Lee,M.D. Ogden 한국공업화학회 2020 Journal of Industrial and Engineering Chemistry Vol.82 No.-
Decommissioning is one of the most important phases in the life of a nuclear reactor, having a majorinfluence on public perception of such technology. Therefore, development of technologies that makedecommissioning more safe, effective and efficient is integral to the success of the nuclear industry. Inthis paper, phosphonic acid functionalised silica has been studied to determine its suitability for treatingnuclear decommissioning effluents produced in the HYBRID process, developed in South Korea. Cu2+recovery from HCl media in both static and dynamic modes was investigated, as well as the effect of Cu2+on Co2+ and Ni2+ recovery in a column loading system. Isothermal loading studies predicted a maximumloading capacity for Cu2+ of 22.82 mg g 1, however complex loading behaviour was observed. Cu2+sorption followed pseudo-second order kinetics with rapid uptake. Thermodynamic parameters havebeen extracted from collected kinetic data. Cu2+ outcompetes both Co2+ and Ni2+ for binding to the silicain column studies, which has implications for the use of phosphonic acid functionalised silica in treatingdecommissioning effluents. This work presents initial lab scale experiments, but shows the potential of Sibased extractants for use in metals recovery in the nuclear industry.