Intermediate-Scale Ion Exchange Removal of Cesium and Technetium from Hanford Tank 241-AN-102

Preliminary Ion Exchange Modeling for Removal of Technetium from Hanford Waste Using SuperLig 639 Resin

“…Batch specific isotherm models (batch #981015DHC720011) are plotted...................................................120 Figure 9-33. VERSE-LC total molar technetium exit breakthrough curves compared to data from King et al (2000c) …”

“…The contact and column tests are documented by King et al (2000c A comparison of several sets of batch contact test data is shown in Figure 9-32. The data, as well as the isotherm models, presented in Figure 9-32 all pertain to SuperLig Ò 639 batch # 981015DHC720011 for varying waste envelopes (i.e., Env.…”

“…As discussed by King et al (2000c), two "Large" Envelope C (241-AN-102) waste samples were considered. The first sample having a nitrate concentration of 1.89 M was used for four batch contact tests (i.e., duplicate tests were also performed for a total of eight data points) where two of the tests were sequential re-contact tests.…”

“…samples where the isotherm models are shown for nitrate levels used in NH-A batch contact and column testing (Hassan et al, 2000d). waste samples where the isotherm model is shown for the nitrate level used in the NH-SC column testing waste samples where the isotherm models are shown for the nitrate levels used in the WK-LC batch contact and column testing (King et al, 2000c). …”

Small-Scale Ion Exchange Removal of Cesium and Technetium from Envelope B Hanford Tank 241-AZ-102

“…The average of duplicate analyses by ISE was 4.93E3 mg/L, but considerable variance was observed between the duplicate samples ( ion exchange column experiments performed on other Hanford waste supernates. 13,17 As reported previously, the cesium resin is also seen to concentrate and elute uranium.…”