Engineering Monosodium Titanate for Adsorption Column Processes

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Monosodium titanate is an inorganic adsorbent powder that effectively removes strontium, plutonium, neptunium, and other trace elements from alkaline high-level waste supernate. This work tested one commercial titanate and four general methods to engineer MST into particles large enough to use in adsorption columns. The most successful of the engineered products selected from batch contact and chemical stability testing succeeded in treating 2900 bed volumes of simulated salt waste containing dissolved plutonium and strontium. There was no detectable strontium breakthrough and only 6 percent plutonium breakthrough--well within the processing goal--at the end of the demonstration which operated at 5.3 BV/hour. ... continued below

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15 pages

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CHARLES, NASH February 27, 2005.

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Monosodium titanate is an inorganic adsorbent powder that effectively removes strontium, plutonium, neptunium, and other trace elements from alkaline high-level waste supernate. This work tested one commercial titanate and four general methods to engineer MST into particles large enough to use in adsorption columns. The most successful of the engineered products selected from batch contact and chemical stability testing succeeded in treating 2900 bed volumes of simulated salt waste containing dissolved plutonium and strontium. There was no detectable strontium breakthrough and only 6 percent plutonium breakthrough--well within the processing goal--at the end of the demonstration which operated at 5.3 BV/hour. Additional column tests at nominally 15 BV/hr demonstrated similar removal performance. Batch testing of adsorbents used both actual Savannah River Site tank supernate as well as simulated salt solutions spiked with strontium, neptunium, and plutonium. In tank waste tests, internal gelation beads produced by the Oak Ridge National Laboratory demonstrated a batch distribution coefficient of 35,000 +/- 4,000 mL/g for plutonium at a phase ratio of 1970 mL/g. In the same batch the sorbent demonstrated a batch distribution coefficient of 99,000 +/- 7,500 mL/g for strontium. These results indicate that this material should be able to process thousands of bed volumes of SRS salt waste before column breakthrough.

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15 pages

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  • Waste Management 05, Tucson, AZ (US), 02/27/2005--03/03/2005

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  • Report No.: WSRC-MS-2004-00790, Rev. 1
  • Grant Number: AC09-96SR18500
  • Office of Scientific & Technical Information Report Number: 837320
  • Archival Resource Key: ark:/67531/metadc782375

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

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  • February 27, 2005

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  • Dec. 3, 2015, 9:30 a.m.

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  • May 5, 2016, 3:53 p.m.

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CHARLES, NASH. Engineering Monosodium Titanate for Adsorption Column Processes, article, February 27, 2005; South Carolina. (digital.library.unt.edu/ark:/67531/metadc782375/: accessed December 17, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.