Small Column Testing of SuperLig 639 for Removing 99Tc from Hanford Tank Waste Envelope A (Tnak 241-AW-101). PDF Download
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Author: Ingrid E. Burgeson
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Author: Ingrid E. Burgeson
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Languages : en
Pages : 111
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The current BNFL Inc. flow sheet for pretreating Hanford High-Level tank wastes includes the use of Superlig(reg.sign)639 (SL-639) in a dual column system for removing technetium-99 (99Tc) from the aqueous fraction of the waste. This sorbent material has been developed and supplied by IBC Advanced Technologies, Inc., American Fork, UT. This report documents the results of testing the SL-639 sorbent with diluted waste [Na] (almost equal to) 5 M from Tank 241-AN-107 (an Envelope C waste, abbreviated AN-107) at Battelle Northwest Laboratories (BNW). The equilibrium behavior was assessed with batch contacts between the sorbent and the waste. Two AN-107 samples were used: (1) an archived sample from previous testing and (2) a more recent sample collected specifically for BNFL. A portion of the archive sample and all of the BNFL sample were treated to remove Sr-90 and transuranic elements (TRU). All samples had also been Cs decontaminated by ion exchange (IX), and were spiked with a technetium-95m ({sup 95m}Tc) pertechnetate tracer, {sup 95m}TcO4−. The TcO4− and total Tc K{sub d} values, assumed equal to the {sup 95m}Tc and 99Tc K{sub d}'s, respectively, are shown in Table S1. Values are averages of duplicates, which showed significant scatter. The total Tc K{sub d} for the BNFL sample is much lower than the TcO4−, indicating that a large fraction of the 99Tc is not pertechnetate.
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Author: Sandra K. Fiskum
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Languages : en
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![Small Column Ion Exchange Testing of SuperLig 644 for Removing [137]Cs from Hanford Waste Tank 241-AN-102 Supernate (Envelope C) Mixed with Tank 241-C-104 Solids (Envelope D) Wash and Permeate Solutions PDF](https://books.google.com/books/content/images/frontcover/csI0GwAACAAJ?fife=w80-h100)
Author: Sandra K. Fiskum
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Author: David L. Blanchard (Jr.)
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Languages : en
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