Initial single-shell tank retrieval system tank selection

Abstract

The Hanford Federal Facility Agreement and Consent Order (also known as the Tri-Party Agreement), established several milestones associated with the Initial Single-Shell Tank Retrieval System (ISSTRS). It also established that the scope of ISSTRS is the retrieval of a complete tank farm or an equivalent number of tanks. This study selected the singleshell tanks to be included in the ISSTRS work scope. This study determined that the ISSTRS work scope should consist of four tanks located in the A, AX, and C , tank farms). retrieval demonstration tank. The other three (Tanks 241-A-I 02, 241-C-103, and 241-C-105) are 100-series tanks containing high interim storage risk, high long-term hazard waste and are assumed not to be leaking.

Phase I high-level waste pretreatment and feed staging plan

“…Revision 1 (Grenard 1996), and the sludge left behind in the source DSTs after staging the Phase I LAW feed. The acceptability of this feed will assume that we are not necessarily bound by the feed composition ranges and physical properties defined in Waste Envelope D. A knowledge of the flexibility in the design of the melter (or other HLW immobilization process) proposed by the HLW private contractor will help to determine the acceptability of these alternative feeds.…”

Tank waste remediation system simulation analysis retrieval model

“…This case represents the baseliue assuniptions of Section 3, with a SST retrieval sequence that satisfies the requirements referred to in the initial SST retrieval sequence work (Grenard 1996).…”