Multiple Ion Exchange Column Runs for Cesium and Technetium Removal from AW-101 Waste Sample

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The River Protection Project -Waste Treatment Plant (RPP-WTP) will be performing cesium removal from Hanford tank waste supernatants using SuperLig 644 resin. These elutable resins will be used multiple times to process large volumes of radioactive waste samples and will be subjected to chemical and radiation degradation during use at the waste treatment plant (WTP). The RPP-WTP process design assumes that resin batches can be used a minimum of 10 cycles before the resin must be replaced due to degradation. The effects of radiation and chemical degradation on SuperLig 644 and 639 resins were separately studied in the past under ... continued below

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Hassan, N.M. February 26, 2004.

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The River Protection Project -Waste Treatment Plant (RPP-WTP) will be performing cesium removal from Hanford tank waste supernatants using SuperLig 644 resin. These elutable resins will be used multiple times to process large volumes of radioactive waste samples and will be subjected to chemical and radiation degradation during use at the waste treatment plant (WTP). The RPP-WTP process design assumes that resin batches can be used a minimum of 10 cycles before the resin must be replaced due to degradation. The effects of radiation and chemical degradation on SuperLig 644 and 639 resins were separately studied in the past under static conditions, i.e., in contact with air, water, and simulated waste solutions. To determine the chemical degradation effects under dynamic or column conditions, Battelle, Pacific Northwest National Laboratory (PNNL), and IBC Advanced Technologies conducted multiple load/elute/regenerate cycles with simulated Hanford waste samples. Savannah River Technology Center (SRTC) was contracted to demonstrate the performance of SuperLig 644 and 639 resins to treat repetitively radioactive waste solutions. Six cycles of loading, elution, and regeneration were performed to remove cesium from a Hanford waste sample. Five load/elute/regenerate cycles were carried out to remove technetium from cesium-depleted effluent solutions. The multiple load/elute/regenerate cycles demonstrated that cesium and technetium can be effectively removed from a sample using SuperLig 644 and 639 resins. The percent cesium removal was greater than 99.99 per cent for each of the six cycles.

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  • Other Information: PBD: 26 Feb 2004

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  • Report No.: WSRC-TR-2003-00098 SRT-RPP-2003-00026
  • Grant Number: AC09-96SR18500
  • DOI: 10.2172/821994 | External Link
  • Office of Scientific & Technical Information Report Number: 821994
  • Archival Resource Key: ark:/67531/metadc778619

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  • February 26, 2004

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  • Dec. 3, 2015, 9:30 a.m.

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  • May 5, 2016, 2:11 p.m.

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Hassan, N.M. Multiple Ion Exchange Column Runs for Cesium and Technetium Removal from AW-101 Waste Sample, report, February 26, 2004; South Carolina. (digital.library.unt.edu/ark:/67531/metadc778619/: accessed August 18, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.