Radioiodine control in incinerator offgas

Journal Article · Fri Dec 31 23:00:00 EST 1982 · Nucl. Chem. Waste Manage.; (United States)

DOI:https://doi.org/10.1016/0191-815X(83)90018-9· OSTI ID:6034971

Alexander, B M; Doty, J W

Incineration of waste contaminated with radioiodine has been studied in the Mound laboratory-scale cyclone incinerator. Iodine species were found to volatilize from the burn chamber almost completely, but were captured in the offgas system by the combination of a wet scrubber, silver zeolite bed, and dry filters. Various scrub liquor compositions were tested to obtain the best iodine absorption efficiency. A caustic scrubber showed reasonable efficiency which could be increased by the addition of 1.5 wt% KI. The effect of the chemical form of iodine in the feed was also studied briefly. The behavior of the iodine contamination, whether the chemical species was I/sub 2/ or NaI, was much the same. A study of silver zeolite employed in the incinerator offgas system showed that the silver zeolite must be protected against contamination by carbonaceous material for longterm efficiency.

• Research Organization: Monsanto Research Corporation, Mound, Miamisburg, Ohio
• OSTI ID: 6034971
• Journal Information: Nucl. Chem. Waste Manage.; (United States), Journal Name: Nucl. Chem. Waste Manage.; (United States) Vol. 4:3; ISSN NCWMD
• 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
ABSORPTION
ALKALI METAL COMPOUNDS
CARBONACEOUS MATERIALS
CHEMICAL COMPOSITION
CHEMICAL REACTIONS
COMBUSTION
COMBUSTORS
CONTAMINATION
CYCLONE COMBUSTORS
EFFICIENCY
EQUIPMENT
EVAPORATION
FILTERS
GASEOUS WASTES
HALIDES
HALOGEN COMPOUNDS
INCINERATORS
INORGANIC ION EXCHANGERS
INORGANIC PHOSPHORS
IODIDES
IODINE COMPOUNDS
IODINE ISOTOPES
ION EXCHANGE MATERIALS
ISOTOPES
LOW-LEVEL RADIOACTIVE WASTES
MANAGEMENT
MATERIALS
MINERALS
OFF-GAS SYSTEMS
OXIDATION
PHASE TRANSFORMATIONS
PHOSPHORS
POLLUTION CONTROL EQUIPMENT
POTASSIUM COMPOUNDS
POTASSIUM IODIDES
PROCESSING
RADIOACTIVE MATERIALS
RADIOACTIVE WASTE PROCESSING
RADIOACTIVE WASTES
SCRUBBERS
SILVER COMPOUNDS
SODIUM COMPOUNDS
SODIUM IODIDES
THERMOCHEMICAL PROCESSES
TRANSITION ELEMENT COMPOUNDS
WASTE MANAGEMENT
WASTE PROCESSING
WASTES
ZEOLITES