Use of the TRUEX process for the pretreatment of neutralized cladding removal waste (NCRW) sludge -- Results of FY 1990 studies
The goal of this process is to separate the transuranic elements from the bulk components so that the bulk components can be disposed of as low-level waste with only a small transuranic-containing fraction requiring geologic disposal. The pretreatment process examined here is the one indicated to be most promising in the initial studies. It involves dissolving the unwashed sludge in nitric acid and then using the TRUEX solvent extraction process to remove the transuranic elements from the bulk components of the waste. The areas identified in this work that need additional information are gradual precipitate formation as dissolved sludge solutions age, and formation of solid material when the dissolved sludge solution is contacted with the solvent used in the TRUEX process. 5 refs., 71 figs., 10 tabs.
- Research Organization:
- Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
- Sponsoring Organization:
- USDOE; USDOE, Washington, DC (United States)
- DOE Contract Number:
- AC06-76RL01830
- OSTI ID:
- 5178926
- Report Number(s):
- PNL-7780; ON: DE92000353
- Country of Publication:
- United States
- Language:
- English
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Pretreatment of neutralized cladding removal waste (NCRW) sludge: Results of FY 1991 studies
Pretreatment of neutralized cladding removal waste (NCRW) sludge - results of FY 1991 studies
Related Subjects
37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
ALPHA-BEARING WASTES
SEPARATION PROCESSES
SLUDGES
DISSOLUTION
BATTELLE PACIFIC NORTHWEST LABORATORIES
FEASIBILITY STUDIES
NITRIC ACID
PH VALUE
TRUEX PROCESS
HYDROGEN COMPOUNDS
INORGANIC ACIDS
MATERIALS
NATIONAL ORGANIZATIONS
RADIOACTIVE MATERIALS
RADIOACTIVE WASTES
US DOE
US ERDA
US ORGANIZATIONS
WASTES
052001* - Nuclear Fuels- Waste Processing
400105 - Separation Procedures