Organic destruction to enhance the separation of strontium in radioactive wastes

Technical Report · Sat Oct 01 04:00:00 EDT 1994

DOI:https://doi.org/10.2172/10109212· OSTI ID:10109212

Schmidt, A J; Elmore, M R; Orth, R J; Jones, E O; Zacher, A H; Hart, T R; Neuenschwander, G G; Poshusta, J C

A low-temperature (300 C to 375 C) hydrothermal organic destruction process is being evaluated to help facilitate the removal of complexed radioactive species from bulk liquid components in Hanford tank waste. The work focuses on hydrothermal processing to destroy organic compounds that contribute to waste safety issues and organic complexants that promote the solubility of radioactive constituents such as {sup 9O}Sr and {sup 241}Am. For the studies discussed here, testing was conducted using a nonradioactive Hanford tank waste simulant. The relative destruction rates of a variety of organic compounds known to be present in Hanford tank waste were evaluated. In addition, the tendency for these organic compounds to complex strontium and the effect of hydrothermal treatment on strontium removal were investigated.

• Research Organization: Pacific Northwest Lab., Richland, WA (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: AC06-76RL01830
• OSTI ID: 10109212
• Report Number(s): PNL-SA--24698; CONF-941016--2; ON: DE95004926
• Country of Publication: United States
• Language: English

Related Subjects

052001
12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
ACETATES
CARBONATES
CHEMICAL COMPOSITION
CITRATES
EDTA
EXPERIMENTAL DATA
FORMATES
HANFORD RESERVATION
HEDTA
HYDROLYSIS
ORGANIC COMPOUNDS
OXALATES
RADIOACTIVE WASTE PROCESSING
RADIOACTIVE WASTES
SEPARATION PROCESSES
SIMULATION
STRONTIUM
WASTE PROCESSING