Radioactive waste characterization
| Site: | Jaslovské Bohunice | |
| References: | JAVYS | |
| Legislation: |
Stipulates criteria of the acceptance of very low and low level RAW in the repository. |
1. DESIGN AND IMPLEMENTATION OF RAW CHARACTERIZATION SYSTEM
- Elaboration of RAW characterization procedure
- Setting the reference radionuclides necessary for the determination of the activity of the radionuclides dificult to measure.
- Design of software and hardware laboratory equipment necessary for RAW characterization
- Design and elaboration of methodologies for the determination of the radiochemical, physical, chemical,and mechanical properties of RAW in compliance with acceptance criteria
2. DESTRUCTIVE ANALYSES OF RAW SAMPLES
Radiochemical analysis
- gammaspectrometry
- alphaspectrometry
- liquid scintillation spectrophotometry
- total alpha and beta activity measurement
Chemical analysis
- pH
- specific conductivity
- concentration of cations by absorption spectrophotometry
- concentration of anions by UV/VIS spectrophotometry
- concentration of boric acid by potentiometric titration
- concentration of tensides by extraction
- chemical and biological oxygen consumption
- water hardness
Physical and chemical analysis
- thermal properties of substances by differential thermal analysis
- RAW leachability index
- viscosity of solutions
- basic physical properties of bitumen (flash point, softening point, penetration, water content)
- content of soluble and insoluble substances in solutions
- sorptive capacity of ion exchangers
Mechanical properties
- determination of compression strength of cement products
- determination of discharge speed of cement paste
3. NON-DESTRUCTIVE INSPECTION OF RAW
- determination of gamma activity of RAW in 200 l barrels (gamma scanner)
- determination of plutonium content of RAW in 200 l barrels using the method of measuring passive neutrons (alpha scanner)
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