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SREX process

To facilitate near-surface disposal of nuclear wastes, efficient removal of the ty = 30 year fission product °Sr is desirable. The SREX process [60]... [Pg.538]

Wood, D.J., Law, J.D., Todd, T.A. 1998. Demonstration of a SREX process for the treatment of actual high activity waste at the INEEL using centrifugal contactors. Science and Technology for Disposal of Radioactive Tank Waste, Schulx, W.W., Lombardo, NJ. Eds. Plenum, New York, pp. 255-268. [Pg.58]

Extraction of strontium from acidic medium or from acidic medium containing large amounts of sodium nitrate by dicyclohexano-18-crown-6 derivatives and, particularly, its lipophilic analog with a /-butyl group appended to each cyclohexane rings DtBuC18C6, was extensively studied by Horwitz (SREX process).114 116... [Pg.243]

After a few years of storage, the main radioactive heat emitters in HLW are 90Sr and 137Cs. In addition, extremely long-lived actinides—neptunium, plutonium, americium, and curium—should be collected for transmutation in the future. Therefore, different flowsheets can be proposed for waste processing. It is possible to extract each radionuclide in the special extraction (sorption) cycle, for example, uranium and plutonium in the PUREX process, and after that, minor actinides (MAs) by the TRUEX process,4 strontium by the SREX process,5,6 and cesium by sorption7 or extraction.8... [Pg.360]

SREX [Strontium extraction] A process for removing strontium-90 from aqueous wastes from nuclear fuel processing, by solvent extraction into a solution of 18-crown-6 in octanol. Developed by E. P. Horwitz at the Argonne National Laboratory, Chicago, IL, in 1990. [Pg.253]

Horwitz, E. R, Dietz, M. L., Fisher, D. E. I., Srex A new process for the extraction and recovery of strontium from acidic nuclear waste streams, Solv. Extr. Ion Exch., 9,1-25, 1991. [Pg.291]

Law, J.D., Wood, D.J., Herbst, R.S. 1997. Development and testing of SREX flowsheets for treatment of Idaho Chemical Processing Plant sodium-bearing waste using centrifugal contactors. Sep. Sci. Technol. 32 C1 —4) 223-240. [Pg.58]

Horwitz, E.P., Dietz, M.L., Diamond, H., Rogers, R.D., Leonard, R.A. Combined TRUEX-SREX extraction/recovery process. In Horwitz, E.P., Schulz, W.W. Eds., Chemical Pretreatment of Nuclear Waste for Disposal. Plenum Press, New York, 1994,... [Pg.380]

NPEX A process for removing neptunium and plutonium during the processing of nuclear fuel by solvent extraction. The solvent is tributyl phosphate diluted with n-dodecane. Developed by E.R Howitz at the Argonne National Laboratory, Argonne, IL. See also SREX, UREX+. [Pg.258]

See other pages where SREX process is mentioned: [Pg.539]    [Pg.546]    [Pg.270]    [Pg.25]    [Pg.29]    [Pg.243]    [Pg.368]    [Pg.479]    [Pg.628]    [Pg.800]    [Pg.539]    [Pg.546]    [Pg.270]    [Pg.25]    [Pg.29]    [Pg.243]    [Pg.368]    [Pg.479]    [Pg.628]    [Pg.800]    [Pg.12]    [Pg.385]    [Pg.386]    [Pg.386]    [Pg.1096]   
See also in sourсe #XX -- [ Pg.25 , Pg.29 , Pg.243 , Pg.360 , Pg.479 ]

See also in sourсe #XX -- [ Pg.628 ]



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