Phase I high-level waste pretreatment and feed staging plan

摘要

This document updates the planning basis for the U.S. Department of Energy (DOE) to provide a sufficient quantity of high-level waste (HLW) feed to the privatization contractor during Phase I. The DOE has sufficient HLW feed to satisfy the minimum order quantity and, with the transfer system upgrades recommended by Galbraith (1996), the means to provide the feed to the private contractor's facility during Phase I. Assuming the planned DST retrieval system (two 300-hp mixer pumps), the total sludge available as feed for Waste Envelope D is at least 130 percent of the minimum order quantity specified in the RFP, assuming dilute caustic washing. However, additional sources of feed will need to be identified to support the optional extension of HLW processing in Phase I. The maximum HLW sludge inventory available in the three DSTs identified for Phase I is less 1514 than the maximum order quantity (460 MT versus 465 MT). Assuming the anticipated efficiencies of the DST retrieval systems are achieved, the amount of waste available for feed would only be 70 to 80 percent of the maximum order quantity.