LWR fuel reprocessing and recycle progress report for July 1--September 30, 1976. [Off-gas treatment; waste management; /sup 129/I adsorbent and storage]
LWR Off-Gas Treatment: A reference facility has been described in a draft report. A survey of technical literature for immobilization of /sup 14/CO/sub 2/ was completed. Waste Management: Laboratory evaporations were continued using simulated HLLW solutions representing three fuel cycle processes. Total solids content at various degrees of evaporation are presented together with boiling point rises and slurry densities. Substitution of less costly materials for Rh, Pd, and Tc did not affect the physical properties of the slurries or the quantity of solids formed. The effect of adding nuclear poisons (gadolinium, boron, or cadmium) on physical properties of HLLW and on solids formation is reported. Solids formed in all HLLW solutions contained major amounts of Zr and Mo. The design of the small-scale thermosyphon evaporator and the reboiler tube test specimen are presented. Evaporated HLLW slurries stored for two months at 35/sup 0/C have not produced significantly more solids. Laboratory corrosion data showed excessive corrosion occurred in HLLW containing high iron concentrations and 7 M HNO/sub 3/, apparently due to Cr formed by stainless steel corrosion. Iodine-129 Adsorbent and Storage Development: Silver-exchanged zeolite (AgX) and mordenite (AgZ) were loaded with and stripped of elemental iodine for evaluation for recycle behavior. After five cycles, the AgZ showed no decrease in loading (approximately 440 mg/g); the AgX loading dropped about 50 percent from its initial value of 320 mg/g. (DLC)
- Research Organization:
- Idaho National Engineering Lab., Idaho Falls (USA)
- DOE Contract Number:
- EY-76-C-07-1540
- OSTI ID:
- 7320566
- Report Number(s):
- ICP-1108
- Country of Publication:
- United States
- Language:
- English
Similar Records
Development of Ag/sup 0/Z for bulk /sup 129/I removal from nuclear fuel reprocessing plants and PbX for /sup 129/I storage
Alternative fuel cycle technology progress report for April 1--June 30, 1977. [LWR off-gas treatment; /sup 129/I adsorbent and storage development; waste management]
Related Subjects
052000 -- Nuclear Fuels-- Waste Management
11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS
12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS
210802 -- Nuclear Power Plants-- Economics-- Fuel Cycle
ADSORPTION
AIR CLEANING SYSTEMS
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
BOILERS
BOILING POINTS
CARBON 14
CARBON COMPOUNDS
CARBON DIOXIDE
CARBON ISOTOPES
CARBON OXIDES
CHALCOGENIDES
CHEMICAL REACTIONS
CORROSION
DENSITY
DESIGN
DISPERSIONS
ENGINEERED SAFETY SYSTEMS
EVAPORATION
EVAPORATORS
EVEN-EVEN NUCLEI
FUEL CYCLE
INORGANIC ION EXCHANGERS
INTERMEDIATE MASS NUCLEI
INTERNAL CONVERSION RADIOISOTOPES
IODINE 129
IODINE ISOTOPES
ION EXCHANGE MATERIALS
ISOTOPES
LIGHT NUCLEI
MANAGEMENT
MINERALS
MIXTURES
MORDENITE
NUCLEAR POISONS
NUCLEI
ODD-EVEN NUCLEI
OFF-GAS SYSTEMS
OXIDES
OXYGEN COMPOUNDS
PHASE TRANSFORMATIONS
PHYSICAL PROPERTIES
PROCESSING
RADIOACTIVE WASTE MANAGEMENT
RADIOACTIVE WASTE PROCESSING
RADIOISOTOPES
REACTOR MATERIALS
REACTORS
REMOVAL
REPROCESSING
RESEARCH PROGRAMS
SEPARATION PROCESSES
SILVER COMPOUNDS
SLURRIES
SOLIDS
SORPTION
SUSPENSIONS
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT COMPOUNDS
TRANSITION TEMPERATURE
WASTE MANAGEMENT
WASTE PROCESSING
WATER COOLED REACTORS
YEARS LIVING RADIOISOTOPES
ZEOLITES