Deflagration studies on waste Tank 101-SY: Test plan
Waste slurries produced during the recovery of plutonium and uranium from irradiated fuel are stored in underground storage tanks. While a variety of waste types have been generated, of particular concern are the wastes stored in Tank 101-SY. A slurry growth-gas evolution cycle has been observed since 1981. The waste consists of a thick slurry, consisting of a solution high in NaOH, NaNO{sub 3}, NaAlO{sub 2}, dissolved organic complexants (EDTA, HEDTA, NTA, and degradation products), other salts (sulfates and phosphates), and radionuclides (primarily cesium and strontium). During a gas release the major gaseous species identified include: hydrogen and nitrous oxide (N{sub 2}O). Significant amounts of nitrogen may also be present. Traces of ammonia, carbon oxides, and other nitrogen oxides are also detected. Air and water vapor are also present in the tank vapor space. The purpose of the deflagration study is to determine risks of the hydrogen, nitrous oxide, nitrogen, and oxygen system. To be determined are pressure and temperature as a function of composition of reacting gases and the concentration of gases before and after the combustion event. Analyses of gases after the combustion event will be restricted to those tests that had an initial concentration of {le}8% hydrogen. This information will be used to evaluate safety issues related to periodic slurry growth and flammable gas releases from Tank 101-SY. the conditions to be evaluated will simulate gases in the vapor space above the salt cake as well as gases that potentially are trapped in pockets within/under the waste. The deflagration study will relate experimental laboratory results to conditions in the existing tanks.
- Research Organization:
- Bureau of Mines, Pittsburgh, PA (United States). Pittsburgh Research Center
- Sponsoring Organization:
- USDOE; USDOE, Washington, DC (United States)
- DOE Contract Number:
- AI06-91RL12253
- OSTI ID:
- 6371639
- Report Number(s):
- DOE/RL/12253-T3; ON: DE92003489
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
AIR
FLAMMABILITY
GASEOUS WASTES
HYDROGEN
NITROUS OXIDE
CALIBRATION
MIXTURES
QUALITY ASSURANCE
RADIOACTIVE WASTE STORAGE
TANKS
UNDERGROUND STORAGE
CHALCOGENIDES
COMBUSTION PROPERTIES
CONTAINERS
DISPERSIONS
ELEMENTS
FLUIDS
GASES
MANAGEMENT
NITROGEN COMPOUNDS
NITROGEN OXIDES
NONMETALS
OXIDES
OXYGEN COMPOUNDS
RADIOACTIVE WASTE MANAGEMENT
STORAGE
WASTE MANAGEMENT
WASTE STORAGE
WASTES
052002* - Nuclear Fuels- Waste Disposal & Storage