Stabilization of vitrified wastes: Task 4. Topical report, October 1994--September 1995
The goal of this task was to work with private industry to refine existing vitrification processes to produce a more stable vitrified product. The initial objectives were to (1) demonstrate a waste vitrification procedure for enhanced stabilization of waste materials and (2) develop a testing protocol to understand the long-term leaching behavior of the stabilized waste form. The testing protocol was expected to be based on a leaching procedure called the synthetic groundwater leaching procedure (SGLP). This task will contribute to the US DOE`s identified technical needs in waste characterization, low-level mixed-waste processing, disposition technology, and improved waste forms. The proposed work was to proceed over 4 years in the following steps: literature surveys to aid in the selection and characterization of test mixtures for vitrification, characterization of optimized vitrified test wastes using advanced leaching protocols, and refinement and demonstration of vitrification methods leading to commercialization. For this year, literature surveys were completed, and computer modeling was performed to determine the feasibility of removing heavy metals from a waste during vitrification, thereby reducing the hazardous nature of the vitrified material and possibly producing a commercial metal concentrate. This report describes the following four subtasks: survey of vitrification technologies; survey of cleanup sites; selection and characterization of test mixtures for vitrification and crystallization; and selection of crystallization methods based on thermochemistry modeling.
- Research Organization:
- Univ. of North Dakota, Grand Forks, ND (United States). Energy and Environmental Research Center
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- FC21-94MC31388
- OSTI ID:
- 212457
- Report Number(s):
- DOE/MC/31388-5141; ON: DE96004364; TRN: 96:010497
- Resource Relation:
- Other Information: PBD: Sep 1995
- Country of Publication:
- United States
- Language:
- English
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LOW-LEVEL RADIOACTIVE WASTES
VITRIFICATION
HAZARDOUS MATERIALS
WASTE FORMS
STABILIZATION
PROGRESS REPORT
MIXTURES
RADIOACTIVE WASTE PROCESSING
DIAGNOSTIC TECHNIQUES
BOROSILICATE GLASS
REMEDIAL ACTION
STORAGE FACILITIES
US DOE
CRYSTALLIZATION
PHASE STUDIES
LEAD
EVAPORATION
CADMIUM
ZINC
ARSENIC
CHROMIUM
COPPER
TEMPERATURE DEPENDENCE
COMPILED DATA