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Fusion Science and Technology
Latest News
Glass strategy: Hanford’s enhanced waste glass program
The mission of the Department of Energy’s Office of River Protection (ORP) is to complete the safe cleanup of waste resulting from decades of nuclear weapons development. One of the most technologically challenging responsibilities is the safe disposition of approximately 56 million gallons of radioactive waste historically stored in 177 tanks at the Hanford Site in Washington state.
ORP has a clear incentive to reduce the overall mission duration and cost. One pathway is to develop and deploy innovative technical solutions that can advance baseline flow sheets toward higher efficiency operations while reducing identified risks without compromising safety. Vitrification is the baseline process that will convert both high-level and low-level radioactive waste at Hanford into a stable glass waste form for long-term storage and disposal.
Although vitrification is a mature technology, there are key areas where technology can further reduce operational risks, advance baseline processes to maximize waste throughput, and provide the underpinning to enhance operational flexibility; all steps in reducing mission duration and cost.
Albert K. Fischer, Carl E. Johnson
Fusion Science and Technology | Volume 15 | Number 2 | March 1989 | Pages 1212-1216
Blanket Material | doi.org/10.13182/FST89-A39858
Articles are hosted by Taylor and Francis Online.
Isotherms are presented for adsorption of H2O(g) on LiAlO2 at 573, 623, and 873K together with isotherms reported earlier for 673 and 773K. From these data, isobars and isosteres were derived. Analysis of the data suggests that two adsorption processes are involved: physisorption at 573K and below, and chemisorption at 873K and above. Both processes function in the intervening temperature range. Corrections were applied to the raw adsorption data, which were obtained by the breakthrough technique, for postbreakthrough uptake of H2O(g). Adsorption on non-BET surfaces is believed to be involved in these corrections for the lower temperature isotherms.
