Details

Autor(en) / Beteiligte

• Hobbs, Michael L.
• Britt, Phillip F.
• Hobbs, David T.
• Kaneshige, Michael J.
• Minette, Michael
• Mintz, Jessica
• Pennebaker, Frank M.
• Parker Jr, Gary R.
• Pierce, Robert
• Rosenberg, David M.
• Schwantes, Jon
• Williams, Audrey

Titel

Thermal runaway of nitric acid-soaked kitty litter in transuranic waste

Ist Teil von

• Process safety and environmental protection, 2022-11, Vol.167, p.543-549

Ort / Verlag

United States: Elsevier Ltd

Erscheinungsjahr

2022

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• Precise wording is important in every field of study, including operational procedures. Confusion in the wording “organic” and “inorganic” may have contributed to substitution of an organic kitty litter for an inorganic adsorbent used to prepare nuclear waste for disposal at an underground salt repository. Adsorbents prevent liquids like nitric acid from causing corrosion within the waste drums. However, combination of organic material with nitric acid can cause heat- and gas-generating reactions resulting in thermal runaway, rapid pressurization, and drum rupture. In 2014, waste Drum 68660 containing nitric acid-soaked organic kitty litter exploded and released transuranic waste into the repository. The cause of the accident was never identified. Here we show that the root cause of Drum 68660 igniting was restriction of the drum vent resulting in accelerated nitric acid chemistry, thermal runaway, and radiation dispersal. [Display omitted]