Complexant Identification in Hanford Waste Simulant Sr/TRU Filtrate

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This project was designed to characterize the available multidentate ligand species and metal ion complexes of iron, strontium and manganese formed with the parent chelators, complexing agents and their fragment products. Complex identification was applied to AN-102 and AN-107 filtrate simulants for Hanford waste after an oxidation reaction with sodium permanganate to create a freshly precipitated manganese dioxide solid for adsorption of transuranic elements. Separation efficiency of different ligands was investigated based on the exchange capability of different ion exchange and ion exclusion analytical columns including Dionex IonPac AS-5A, AS-10, AS-11 and AS-6. The elution programs developed with different mobile ... continued below

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Bannochie, C.J. September 23, 2003.

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Description

This project was designed to characterize the available multidentate ligand species and metal ion complexes of iron, strontium and manganese formed with the parent chelators, complexing agents and their fragment products. Complex identification was applied to AN-102 and AN-107 filtrate simulants for Hanford waste after an oxidation reaction with sodium permanganate to create a freshly precipitated manganese dioxide solid for adsorption of transuranic elements. Separation efficiency of different ligands was investigated based on the exchange capability of different ion exchange and ion exclusion analytical columns including Dionex IonPac AS-5A, AS-10, AS-11 and AS-6. The elution programs developed with different mobile phase concentrations were based on the change in the effective charge of the anionic species and therefore the retention on the stationary phase. In the present work, qualitative and quantitative assessments of multidentate ligands were investigated. Identification methods for the metal ion complexes responsible for solubilizing Fe, Mn and Sr were applied to aged and fresh simulant waste filtrates. Although concentration measurements of both fresh and 3-week aged filtrates showed that the degradation process occurs mainly due to the harsh chemical environment, it was found that the concentration of iron and manganese did not increase, within the error of the analytical measurements, after three weeks when compared with fresh filtrate.

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  • Other Information: PBD: 23 Sep 2003

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  • Report No.: WSRC-TR-2003-00160
  • Grant Number: AC09-96SR18500
  • DOI: 10.2172/815595 | External Link
  • Office of Scientific & Technical Information Report Number: 815595
  • Archival Resource Key: ark:/67531/metadc740869

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  • September 23, 2003

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  • Oct. 18, 2015, 6:40 p.m.

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  • May 5, 2016, 5:39 p.m.

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Bannochie, C.J. Complexant Identification in Hanford Waste Simulant Sr/TRU Filtrate, report, September 23, 2003; South Carolina. (digital.library.unt.edu/ark:/67531/metadc740869/: accessed September 25, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.