Letter report - parametric studies on the use of in situ formed magnetite for the removal of Sr and actinides from tank waste at the Savannah River site.

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This report discusses the experimental program conducted at ANL to study the performance of in-situ-formed magnetite for the removal of Sr, Pu, Np, U, Am, and Cs from the Savannah River Site (SRS) tank waste. The boundaries for the experimental work were defined based on the operational envelope developed earlier in collaboration with SRS. In situ formed ''magnetite'' is actually a mixture of Fe(II) and Fe(III) oxides and hydroxides, including magnetite. Decontamination factor (DF) values were measured for both magnetite and monosodium titanate (MST). Magnetite DF values were found to be superior to MST for all isotopes studied. DF values ... continued below

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28 pages

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Arafat, H. A.; Aase, S. B.; Bakel, A. J.; Bowers, D. L.; Gelis, A. V.; Regalbuto, M. C. et al. April 14, 2003.

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Description

This report discusses the experimental program conducted at ANL to study the performance of in-situ-formed magnetite for the removal of Sr, Pu, Np, U, Am, and Cs from the Savannah River Site (SRS) tank waste. The boundaries for the experimental work were defined based on the operational envelope developed earlier in collaboration with SRS. In situ formed ''magnetite'' is actually a mixture of Fe(II) and Fe(III) oxides and hydroxides, including magnetite. Decontamination factor (DF) values were measured for both magnetite and monosodium titanate (MST). Magnetite DF values were found to be superior to MST for all isotopes studied. DF values for Pu, Np, and Sr, achieved within 30 minutes of magnetite formation were orders of magnitude larger than the needed values. DF values for U and Am were less than the former three but still acceptable, and greater than MST. DF values for Cs were very low. Conditions were found under which magnetite filtered rapidly and faster than MST. Further tests are needed to make concrete conclusions on the magnetite performance relative to MST in a cross-flow filtration setup.

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28 pages

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  • Other Information: PBD: 14 Apr 2003

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  • Report No.: ANL/CMT/MAGNETITE-2002/02
  • Grant Number: W-31-109-ENG-38
  • DOI: 10.2172/822559 | External Link
  • Office of Scientific & Technical Information Report Number: 822559
  • Archival Resource Key: ark:/67531/metadc779893

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Office of Scientific & Technical Information Technical Reports

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  • April 14, 2003

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  • Dec. 3, 2015, 9:30 a.m.

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  • March 22, 2016, 2:55 p.m.

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Arafat, H. A.; Aase, S. B.; Bakel, A. J.; Bowers, D. L.; Gelis, A. V.; Regalbuto, M. C. et al. Letter report - parametric studies on the use of in situ formed magnetite for the removal of Sr and actinides from tank waste at the Savannah River site., report, April 14, 2003; Illinois. (digital.library.unt.edu/ark:/67531/metadc779893/: accessed December 11, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.