Low-level waste feed staging plan

Abstract

to reflect the latest requirement in the Tank Waste Remediation Privatization Request for Proposals (RFP) and amendments, The updated plan develops the sequence and transfer schedule for retrieval of DST supernate by the management and integration contractor and delivery of the staged supernate to the private low-activity waste contractors for treatment. Two DSTs are allocated as intermediate staging tanks. A transfer system conflict analysis provides part of the basis for determining transfer system upgrade requirements to support both lowactivity and high-level waste feed delivery. The intermediate staging tank architecture and retrieval system equipment are provided as a planning basis until design requirements documents are prepared. The actions needed to successfully implement the plan are identified. include resolution of safety issues and changes to the feed envelope limits, minimum order quantities, and desired batch sizes.

Tank waste remediation system operation and utilization plan,vol. I {ampersand} II

“…They address issues identified in this report, the LAW Feed ICD (ICD 19) (Berry 1997), or the previous Low-Activity Waste Feed Staging Report (Certa et al 1996). These recommendations should increase the robustness of the feed delivery system and plans, while remaining fair to both the PHMC Team and the Private Contractors.…”

“…The methodology used to generate the TWRS inventory is similar to that used for earlier TWRS inventory development work (Orme 1996 andCerta 1996) and documented in Shelton 1996a and 1996b. The SST estimates are based on the results of the Hanford Defined Waste (HDW) model developed at the Los Alamos National Laboratory (LANL) and normalized so that the sum of component masses in the SSTs and DSTs agree with current global inventory assumptions (Kupfer et al 1997).…”

“…However, it is recognized that these recommendations may require negotiation between DOE and the Privatization Contractors. Most of these recommendations and underlying issues have already been identified in ICD 19, Low-Activity Waste Feed (Berry 1997) or the Low-Activity Waste Feed Staging Plan (Certa et al 1996).…”

“…Examples of these methods are shown in the Low-Level Waste Feed Staging Plan (Certa et al 1996). The primary issues involved in the selection of a transfer system design are as follows:…”

“…A minimization of potential transfer conflicts between HLW and LAW is discussed in a nodal analysis included with the Low-Level Waste Feed Staging Plan (Certa et al 1996). The analysis in Certa (1996) indicates that up to one HLW batch transfer per month is feasible with minimal schedule conflicts.…”