Dilute chemical decontamination program. Quarterly report 3, April 1-June 30, 1978. Report NEDC-12705-3
The by-products generated by the radiolytic decomposition of oxalic acid, ethylenediaminetetraacetic acid (EDTA), nitrilotriacetic acid (NTA), citric acid, and ascorbic acid were determined by exposing 0.01 M solutions of the metal-ion-free acids to a dose of 4 x 10/sup 7/ rad at 90/sup 0/C with an inert gas atmosphere. The radiolytic decomposition rates of oxalic acid, NTA, and EDTA were investigated. The dissolution rates of unirradiated UO/sub 2/ pellets in 0.01 M solutions of oxalic acid, EDTA, and NTA at 90/sup 0/C were acceptably low. The general corrosion rates of unirradiated production-line Zircaloy-2 fuel cladding in 0.01 M solutions of oxalic acid and EDTA at 90/sup 0/C were acceptably low. The radionuclides absorbed on the regeneration and purification ion-exchange resins during a dilute chemical decontamination of a 5-year-old BWR will not cause significant radiation damage to the resins. At filter loadings below 10% of the filter matrix weight and flow rates below 40 liters/sec/m/sup 2/, the removal efficiency for Fe/sub 2/O/sub 3/ of the SALA-HGMS magnetic filter (Model 10-15-5) with SALA medium-grade Type-430 stainless steel wool was 80%. Preoperational testing of the VNC test loop was successfully completed and all instrumentation was calibrated. General corrosion tests were conducted under static conditions to provide data on the general corrosiveness of the potential reagents. Additional general corrosion tests were conducted to evaluate the effects of several additives and corrosion inhibitors on the corrosion rate of a low alloy steel in 0.01 M NTA.
- Research Organization:
- General Electric Co., San Jose, CA (USA). Nuclear Power Systems Engineering Dept.
- DOE Contract Number:
- AC02-76ET34203
- OSTI ID:
- 6657529
- Report Number(s):
- DOE/ET/34203-T1
- Country of Publication:
- United States
- Language:
- English
Similar Records
Dilute chemical decontamination program. Quarterly report 5, October 1-December 31, 1978
Dilute chemical decontamination program. Semi-annual report (quarters 6 and 7), January 1-June 30, 1979
Related Subjects
210100* -- Power Reactors
Nonbreeding
Light-Water Moderated
Boiling Water Cooled
38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY
400600 -- Radiation Chemistry
ACTINIDE COMPOUNDS
ALLOYS
AMINO ACIDS
ASCORBIC ACID
BWR TYPE REACTORS
BY-PRODUCTS
CARBOXYLIC ACIDS
CHALCOGENIDES
CHELATING AGENTS
CHEMICAL RADIATION EFFECTS
CHEMICAL REACTIONS
CHEMISTRY
CHROMIUM ADDITIONS
CHROMIUM ALLOYS
CITRIC ACID
CLEANING
CORROSION
DATA
DECOMPOSITION
DECONTAMINATION
DICARBOXYLIC ACIDS
DISSOLUTION
EDTA
ELECTROMAGNETIC RADIATION
EXPERIMENTAL DATA
FILTRATION
GAMMA RADIATION
HYDROXY ACIDS
INFORMATION
ION EXCHANGE MATERIALS
IONIZING RADIATIONS
IRON ADDITIONS
IRON ALLOYS
IRON BASE ALLOYS
IRON COMPOUNDS
IRON OXIDES
MATERIALS
MEDIUM TEMPERATURE
NTA
NUMERICAL DATA
ORGANIC ACIDS
ORGANIC COMPOUNDS
ORGANIC POLYMERS
OXALIC ACID
OXIDES
OXYGEN COMPOUNDS
PETROCHEMICALS
PETROLEUM PRODUCTS
POLYMERS
RADIATION CHEMISTRY
RADIATION EFFECTS
RADIATIONS
RADIOLYSIS
REACTORS
RESEARCH PROGRAMS
RESINS
SEPARATION PROCESSES
STEELS
TIN ALLOYS
TRANSITION ELEMENT COMPOUNDS
URANIUM COMPOUNDS
URANIUM DIOXIDE
URANIUM OXIDES
VITAMINS
WATER COOLED REACTORS
WATER MODERATED REACTORS
WATER TREATMENT
ZIRCALOY
ZIRCALOY 2
ZIRCONIUM ALLOYS
ZIRCONIUM BASE ALLOYS