Attendance: G. Choppin (chair), M. Apted, P. Baisden, E. Flanigen, C. Hussey, F. Mansfeld, E. McNeese, R. Osteryoung, R. White, J. Williams, D. Raber, C. Murphy, M. Jones.
Unable to attend: B. Kear.
Speakers: Robert Benedict (ANL), Howard Eckert (DOE), Eric Shaber, (INEEL), Charles Forsberg (ORNL), Harold Peacock (SRS), Mal McKibben (SRS), Jerry Christian, (INEEL), Xiangdong Feng (PNL).
Participants: Beverly Cook (DOE), William Hartman (DOE), Dan Funk (DOE), John Kotek (DOE), Tim Long (DOE), Steve Gomberg (DOE), Steve Ludwig (ANL), Greg Bass (ANL), James Laidler (ANL), Harold McFarland (ANL), Yoon Chang (ANL).
Gregory R. Choppin convened the meeting at 8:30 a.m. in NAS 250. Closed meeting discussions included introduction of new committee members and a composition and balance discussion. This was followed by a review of an NBC News video covering operations at ANL-West. The final topic in the closed session was a discussion of committee goals for the meeting.
Robert Benedict, ANL-W, began the open session with an update on the demonstration project at ANL-W. He gave a background on EBR-II spent fuel treatment. A detailed description of the equipment involved in the process included the Mark-IV and Mark-V ERs, the cathode processor, the casting furnace, the glovebox electrorefiners, and the concentric anode cathode design. For the demonstration project, the repeatability demo of four assemblies per month for 3 months was moved back to the September through November period, but he was confident that this demo would be accomplished. The rest of the demonstration project was proceeding on schedule.
Howard Eckert, DOE, spoke on the disposition of DOE SNF. He discussed the current DOE SNF inventory and location, as well as DOE fuel management and disposition strategy. He presented two canister approaches for disposal of SNF, a direct co-disposal approach, and a multicanister overpack approach. Following a presentation of RCRA requirements for SNF disposal, he spoke briefly on the EMT process. He stated that, pending the outcome of the present EBR-II demonstration project, that EMT was the leading candidate for preparation of Fermi-I fuel for disposal.
Eric Shaber, INEEL, began the presentations on alternative technologies to EMT. The high-integrity overpack strategy consisted of placing SNF in high-integrity cans inside standard SNF canisters. These in turn are surrounded by HLW canisters. The final container is a repository waste package. The construction of these canisters was given, as were designs for a high-integrity can.
Charles Forsberg, ORNL, spoke on the topic of glass-material oxidation and dissolution, or GMODS. This technology consists of treating the spent fuel to a first step consisting of oxidation, dehalogenation, and oxide dissolution. The next step is lead oxide reduction, followed by silicate glass formulation to convert the melt to a borosilicate glass as the waste form for disposal.
Harold Peacock, SRS, briefed the committee on melt and dilute technology. The melt and dilute concept involves melting the SNF. The SNF form is dried and sealed in an inert gas container. The off-gas would be treated either by cool and condense and/or trapping, if needed. This waste could then be packaged in either a canister or as solid waste, or it could be acid leached to liquid waste.
Mal McKibben, SRS, summarized the PUREX process and the facilities at Savannah River. PUREX is a counter-current solvent extraction method used to separate and purify U and Pu from SNF and targets.