Glassy slag: A complementary waste form to homogeneous glass for the implementation of MAWS in treating DOE low level/mixed wastes
Conference
·
OSTI ID:10167187
- Argonne National Lab., IL (United States)
- USDOE Office of Technology Development, Germantown, MD (United States)
- Waste Policy Inst., Gaithersburg, MD (United States)
Glassy slag waste forms are being developed to complement glass waste forms in implementing the Minimum Additive Waste Stabilization (MAWS) Program for supporting DOE`s environmental restoration efforts. These glassy slags are composed of various metal oxide crystalline phases embedded in an alumino-silicate glass phase. The slags are appropriate final waste forms for waste streams that contain large amounts of scrap metals and elements with low solubilities in glass, and that have low-flux contents. Homogeneous glass waste forms are appropriate for wastes with sufficient fluxes and low metal contents. Therefore, utilization of both glass and glassy slag waste forms will make vitrification technology applicable to the treatment of a much larger range of radioactive and mixed wastes. The MAWS approach was a plied to glassy slags by blending multiple waste streams to produce the final waste form, minimizing overall waste form volume and reducing costs. The crystalline oxide phases formed in the glassy slags can be specially formulated so that they are very durable and contain hazardous and radioactive elements in their lattice structures. The Structural Bond Strength (SBS) Model was used to predict the chemical durability of the product from the slag composition so that optimized slag compositions could be obtain with a limited number of crucible melts and testing.
- Research Organization:
- Argonne National Lab., IL (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- W-31109-ENG-38
- OSTI ID:
- 10167187
- Report Number(s):
- ANL/CMT/CP--82761; CONF-940815--66; ON: DE94015032
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
052001
054000
11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS
12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
BOROSILICATE GLASS
ENVIRONMENT
HEALTH AND SAFETY
LOW-LEVEL RADIOACTIVE WASTES
RADIOACTIVE WASTE PROCESSING
REMEDIAL ACTION
SCRAP METALS
SLAGS
VITRIFICATION
WASTE FORMS
WASTE PROCESSING
054000
11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS
12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
BOROSILICATE GLASS
ENVIRONMENT
HEALTH AND SAFETY
LOW-LEVEL RADIOACTIVE WASTES
RADIOACTIVE WASTE PROCESSING
REMEDIAL ACTION
SCRAP METALS
SLAGS
VITRIFICATION
WASTE FORMS
WASTE PROCESSING