Tank Waste Remediation System optimized processing strategy Page: 6 of 371
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This report provides an alternative strategy evolved from the current Hanford. Site
Tank Waste Remediation System (TWRS) programmatic baseline for accomplishing the
treatment and disposal of the Hanford Site tank wastes. This optimized processing strategy
performs the major elements of the TWRS Program, but modifies the deployment of selected
treatment technologies to reduce the program cost. The present program for development of
waste retrieval, pretreatment, and vitrification technologies continues, but the optimized
processing strategy reuses a single facility to accomplish the separations/low-activity waste
(LAW) vitrification and the high-level waste (HLW) vitrification processes sequentially,
thereby eliminating the need for a separate HLW vitrification facility. 'This facility is called
the Sequential Processing Facility (SPF). Reuse of the processing facility for multiple
functions reduces capital and expense costs, minimizes the land committed for radioactive
waste management, and reduces the decontamination and decommissioning task.
To do this, all waste treatment functions and associated technologies currently
identified in the programmatic baseline are incorporated into a single process facility. This
strategy will require the modification of the interim system constraints, but will maintain the
same system end states. These end states contained in the current programmatic baseline are
consistent with the Hanford Federal Facility Agreement and Consent Order' (Tri-Party
Agreement) completion date of 2028 for tank clean-up. The system end states are (1) closed
'Ecology, EP A, and DOE, 1994, Hanford Federal Facility Agreement and Consent
Order, as amended, Washington State Department of Ecology, U.S. Environmental
Protection Agency, and U. S. Department of Energy, Olympia, Washington.
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Slaathaug, E. J.; Boldt, A. L.; Boomer, K. D.; Galbraith, J. D.; Leach, C. E. & Waldo, T. L. Tank Waste Remediation System optimized processing strategy, report, March 1, 1996; Richland, Washington. (digital.library.unt.edu/ark:/67531/metadc680248/m1/6/: accessed November 17, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.