Permanganate Treatment of Savannah River Site Simulant Wastes for Strontium and Actinide Removal

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This study examined the use of sodium permanganate and strontium nitrate to remove the actinides and radio-strontium from Savannah River Site (SRS) waste supernate. We examined the quantities of chemical feed reagents along with increased mixing and the excess of organic reductant. Additionally, we examined two processing schemes including that applicable to either the Salt Waste Processing Facility or the Alpha Removal Process (ARP) (5.6 M sodium ion concentration) conditions and the conditions for an In-Tank application (7.5 M sodium ion concentration). Our results support the following conclusions: The process met minimum required decontamination factors (DFs) within the tested parameter ... continued below

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Wilmarth, W.R. October 30, 2003.

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Description

This study examined the use of sodium permanganate and strontium nitrate to remove the actinides and radio-strontium from Savannah River Site (SRS) waste supernate. We examined the quantities of chemical feed reagents along with increased mixing and the excess of organic reductant. Additionally, we examined two processing schemes including that applicable to either the Salt Waste Processing Facility or the Alpha Removal Process (ARP) (5.6 M sodium ion concentration) conditions and the conditions for an In-Tank application (7.5 M sodium ion concentration). Our results support the following conclusions: The process met minimum required decontamination factors (DFs) within the tested parameter sets for strontium and plutonium in both the ARP and In-Tank application. The strontium DFs far exceeded the required values within the tested parameter sets. Within the ARP application, the use of peroxide as the reductant for permanganate produced higher plutonium DFs than the use of sodium formate. Reductant concentration and degree of mixing strongly influenced radionuclide decontamination. In the formate application under the ARP process, increasing the reductant concentration and mixing energy resulted in higher Sr and Pu decontamination.

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  • Other Information: PBD: 30 Oct 2003

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  • Report No.: WSRC-TR-2003-00413
  • Grant Number: AC09-96SR18500
  • DOI: 10.2172/817621 | External Link
  • Office of Scientific & Technical Information Report Number: 817621
  • Archival Resource Key: ark:/67531/metadc735347

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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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  • October 30, 2003

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  • Oct. 18, 2015, 6:40 p.m.

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  • May 5, 2016, 2:22 p.m.

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Wilmarth, W.R. Permanganate Treatment of Savannah River Site Simulant Wastes for Strontium and Actinide Removal, report, October 30, 2003; South Carolina. (digital.library.unt.edu/ark:/67531/metadc735347/: accessed December 18, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.