Porflow modeling for a preliminary assessment of the performance of new saltstone disposal unit designs
- Savannah River Site (SRS), Aiken, SC (United States). Savannah River National Lab. (SRNL)
At the request of Savannah River Remediation (SRR), SRNL has analyzed the expected performance obtained from using seven 32 million gallon Saltstone Disposal Units (SDUs) in the Z-Area Saltstone Disposal Facility (SDF) to store future saltstone grout. The analysis was based on preliminary SDU final design specifications. The analysis used PORFLOW modeling to calculate the release of 20 radionuclides from an SDU and transport of the radionuclides and daughters through the vadose zone. Results from this vadose zone analysis were combined with previously calculated releases from existing saltstone vaults and FDCs and a second PORFLOW model run to calculate aquifer transport to assessment points located along a boundary 100 m from the nearest edge of the SDF sources. Peak concentrations within 12 sectors spaced along the 100 m boundary were determined over a period of evaluation extending 20,000 years after SDF closure cap placement. These peak concentrations were provided to SRR to use as input for dose calculations.
- Research Organization:
- Savannah River Site (SRS), Aiken, SC (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC09-08SR22470
- OSTI ID:
- 1126475
- Report Number(s):
- SRNL-STI-2012-00445
- Country of Publication:
- United States
- Language:
- English
Similar Records
Contaminant Leaching From Intact Saltstone Monoliths - 17517
PORFLOW modeling of Vadose zone flow and transport for the E-area intermediate level vault