High volume and facile processing are key aspects to the development of novel waste forms for captured radiological iodine gas (I2). We report on related yet unique waste forms that incorporate low-temperature sintering glass and I2 loaded metal-organic frameworks (MOFs). In the core-shell type assemblies, the barrier shell is made of low-temperature sintering glass, while the core consists of stacked pellets of either glass-composite or novel amorphized I2/MOF. Due to the versatility of the shell configuration, multiple pellets are able to be safely encapsulated, capped and then sintered into a durable waste form.  Accordingly, the resulting compact monoliths comprise high-capacity consolidated radiological waste content for extended storage. Analytical evidence of I2 entrapment by amorphization, and waste form durability will be presented.Sandia National Laboratories is a multi-program lab managed and operated by Sandia Corp., a wholly owned subsidiary of Lockheed Martin Corporation, for the US DOE's NNSA under contract DE-AC04-94AL85000.

Design and characterization of novel waste forms for the long-term storage of volatile radioiodine

243rd National Meeting (2012)

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