Support for the in situ vitrification treatability study at the Idaho National Engineering Laboratory: FY 1988 summary
The objective of this project is to determine if in situ vitrification (ISV) is a viable, long-term confinement technology for previously buried solid transuranic and mixed waste at the Radioactive Waste Management Complex (RWMC). The RWMC is located at the Idaho National Engineering Laboratory (INEL). In situ vitrification is a thermal treatment process that converts contaminated soils and wastes into a durable glass and crystalline form. During processing, heavy metals or other inorganic constituents are retained and immobilized in the glass structure, and organic constituents are typically destroyed or removed for capture by an off-gas treatment system. The primary FY 1988 activities included engineering-scale feasibility tests on INEL soils containing a high metals loading. Results of engineering-scale testing indicate that wastes with a high metals content can be successfully processed by ISV. The process successfully vitrified soils containing localized metal concentrations as high as 42 wt % without requiring special methods to prevent electrical shorting within the melt zone. Vitrification of this localized concentration resulted in a 15.9 wt % metals content in the entire ISV test block. This ISV metals limit is related to the quantity of metal that accumulates at the bottom of the molten glass zone. Intermediate pilot-scale testing is recommended to determine metals content scale-up parameters in order to project metals content limits for large-scale ISV operation at INEL.
- Research Organization:
- Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
- DOE Contract Number:
- AC06-76RL01830
- OSTI ID:
- 6517378
- Report Number(s):
- PNL-6787; ON: DE89007769
- Resource Relation:
- Other Information: Portions of this document are illegible in microfiche products
- Country of Publication:
- United States
- Language:
- English
Similar Records
Engineering-scale test 4: In situ vitrification of toxic metals and volatile organics buried in INEL soils
Crucible melts and bench-scale ISV (in situ vitrification) tests on simulated wastes in INEL (Idaho National Engineering Laboratory) soils
Related Subjects
11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS
ALPHA-BEARING WASTES
UNDERGROUND DISPOSAL
HIGH-LEVEL RADIOACTIVE WASTES
IN-SITU PROCESSING
EVALUATION
FEASIBILITY STUDIES
LIQUID WASTES
METALS
PROGRESS REPORT
RADIOACTIVE WASTE PROCESSING
SITE CHARACTERIZATION
SOILS
SOLIDIFICATION
VITRIFICATION
DOCUMENT TYPES
ELEMENTS
MANAGEMENT
MATERIALS
PHASE TRANSFORMATIONS
PROCESSING
RADIOACTIVE MATERIALS
RADIOACTIVE WASTES
WASTE DISPOSAL
WASTE MANAGEMENT
WASTE PROCESSING
WASTES
052002* - Nuclear Fuels- Waste Disposal & Storage
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