Uranium Recovery From Liquid Waste of UCF Plant With Ion Exchange Resin Method in Continuous Mode

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Semnani, Fatemeh | 2011

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Type of Document: M.Sc. Thesis
Language: Farsi
Document No: 42408 (46)
University: Sharif University of Technology
Department: Energy Engineering
Advisor(s): Samadfam, Mohammad; Sepehrian, Hamid; Ghasemi, Mohammad Reza
Abstract:
During various stages of processing uranium in Uranium conversion facility (UCF) in Isfahan, significant amounts of liquid waste is produced which leads to evaporation ponds. Since the concentration of uranium in evaporation ponds is relatively high, it seems to addition to environmental issues with recycled uranium from existing pools is also economically. Various physical and chemical methods for removal of uranium waste is used such as solvent extraction, ion exchange, chemical precipitation, membrane processes, etc. Each method has advantages and disadvantages. The ion exchange method, The due to lower cost, less acid pollution with organic copmpounds, convenience and high selectivity has been considered. In this study, CG-400 and MCM-41 was used to separate uranium from UCF waste. These investigations include studies of equilibrium, kinetic, thermodynamic and the column parameters. The importance of column studies is that practicly in large scale, the process is continuous which is typically done using fixed bed columns. Both adsorbents showed good behavior in the absorption of uranium from waste
Keywords:
Radioactive Waste ; Uranium Recovery ; Ion Exchange

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