Iodox process tests in a transuranium element production campaign

Technical Report · Fri Jun 01 04:00:00 EDT 1979

DOI:https://doi.org/10.2172/6153980· OSTI ID:6153980

Collins, E. D.; Benker, D. E.

The Iodox process, an advanced method for removing gaseous radioiodine from airstreams, was tested at high activity levels during transuranium element production operations. Special equipment was used to remove radioiodine from 3-5M HNO/sub 3/ dissolver solutions by volatilization and to absorb the iodine from the dissolver off-gas into hyperazeotropic HNO/sub 3/. More than 96% of the /sup 131/I in the dissolver solutions was removed by heeating to 100/sup 0/C and air-sparging. Treatments such as boiling, sparging with 5% N/sub 2/O/sub 3/, and adjustment to 10/sup -4/ M KI or 1% H/sub 2/O/sub 2/ effected the additional removal of /sup 131/I by factors of 2 to 5. Other than /sup 131/I, no fission products were volatilized during the treatments. A six-stage bubble-cap column was used for the abosrpttion. Off-gas decontamination factors were in the range of 1 x 10/sup 4/ to 8 x 10/sub 4/, or 5 to 7 per stage; these values are similar to those obtained during previous low-activity studies.

• Research Organization: Oak Ridge National Lab., TN (USA)
• DOE Contract Number: W-7405-ENG-26
• OSTI ID: 6153980
• Report Number(s): ORNL/TM-6182
• Country of Publication: United States
• Language: English

Related Subjects

052001* -- Nuclear Fuels-- Waste Processing
12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
CLEANING
DAYS LIVING RADIOISOTOPES
DECONTAMINATION
EVAPORATION
HYDROGEN COMPOUNDS
INORGANIC ACIDS
INTERMEDIATE MASS NUCLEI
IODINE 131
IODINE ISOTOPES
IODOX PROCESS
ISOTOPES
MANAGEMENT
NITRIC ACID
NUCLEI
ODD-EVEN NUCLEI
OFF-GAS SYSTEMS
PHASE TRANSFORMATIONS
PROCESSING
RADIOACTIVE WASTE PROCESSING
RADIOISOTOPES
WASTE MANAGEMENT
WASTE PROCESSING