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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.
M. Atarashi-Andoh, H. Amano, T. Takahashi
Fusion Science and Technology | Volume 41 | Number 3 | May 2002 | Pages 470-473
Environment | Proceedings of the Sixth International Conference on Tritium Science and Technology Tsukuba, Japan November 12-16, 2001 | doi.org/10.13182/FST02-A22633
Articles are hosted by Taylor and Francis Online.
ETDOSE is a simple computer code for calculating distribution patterns of tritium in the environment for acute and chronic releases of HT and HTO. It calculates tritium concentrations in air, soil, plant free water and plant organic material, and estimates dose impacts from inhalation of air and ingestion of food. ETDOSE includes two different models for calculating HTO re-emission from the soil surface for a chronic tritium release. These two models were tested in the IAEA's model validation program BIOMASS (BIOsphere Modeling and ASSessment methods)1.
