ISDP salt batch #2 supernate qualification

Sample Results From the Integrated Salt Disposition Program Macrobatch 5 Tank 21h Qualification Mst, Ess and Podd Samples

“…The relative standard deviation (shown in parentheses) in Table 7 is the analytical uncertainty associated with the measurement and does not include any contribution to uncertainty due to experimental and sampling methods. 10,12,13,10 See Table 9. The current Macrobatch decontamination efficiency for Pu falls within the range of prior batches while the strontium removal is the highest seen within this series.…”

Evaluation of ISDP Batch 2 Qualification Compliance to 512-S, DWPF, Tank Farm, and Saltstone Waste Acceptance Criteria

“…4). The soluble Pu-238 concentration criteria of less than or equal to 3.0E-03 Ci/gallon is met for Salt Batch 2.…”

“…The quantity of sulfate in the Salt Batch 2 feed is 8,927 mg/l or 0.093 M (Ref. 4). However, the MST/sludge solids will be washed before entering DWPF to reach a sodium concentration of 0.6 M and soluble compounds will proceed in the CSS to MCU and finally to Saltstone.…”

“…Where possible, data from confirmatory sampling (Ref. 4 , and were analyzed for plutonium and uranium isotopes to determine the effect of tank settling as discussed above.…”

“…Using the analytical results of the Salt Batch 2 material, the average of Cs-137 content of the composite samples is 5.34E+07 pCi/mL or 0.202 Ci/gallon (Ref. 4). The Cs-137 concentration is approximately 18 percent of the 512-S WAC of 1.11 Ci/gallon.…”