Results of vitrifying Fernald K-65 residue

Conference · Mon Apr 01 04:00:00 EST 1991

OSTI ID:5547758

Janke, D S; Chapman, C C ^[1]; Vogel, R A ^[2]

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1. Pacific Northwest Lab., Richland, WA (USA)
2. Westinghouse Materials Co. of Ohio, Cincinnati, OH (USA)

Two silos, designated as K-65, at the Feed Materials Production Center in Fernald, Ohio, contain residues from the processing of pitchblende ores. The residue contains radium, uranium, uranium daughter products, and heavy metals and was vitrified in a benchscale system that allowed the volume and composition of the off gas to be determined. Chemical analyses of both the vitrified and nonvitrified residue were performed, including Toxicity Characteristic Leachate Procedure (TCLP) and Extraction Procedure (EP) toxicity testing. The nonvitrified K-65 residue tested hazardous'' by the EP toxicity procedure, and the radon emanation rate was over 2500 times the EPA limit of 20 pCi/m{sup 2}/s. After vitrification, the K-65 residue tested nonhazardous'' by the TCLP; the volume was 39% of the original material, and the radon emanation rate was reduced by a factor of over 33,000 to 1.56 pCi/m{sup 2}/s, an order of magnitude below the EPA limit. 9 refs., 2 figs., 4 tabs.

• Research Organization: Pacific Northwest Lab., Richland, WA (USA)
• Sponsoring Organization: DOE; USDOE, Washington, DC (USA)
• DOE Contract Number: AC06-76RL01830; AC05-86OR21600
• OSTI ID: 5547758
• Report Number(s): PNL-SA-18960; CONF-9104261--1; FMPC--2230; ON: DE91012872
• Country of Publication: United States
• Language: English

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052001* -- Nuclear Fuels-- Waste Processing
12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
ACTINIDE ISOTOPES
ACTINIDE NUCLEI
ACTINIDES
ALKALINE EARTH ISOTOPES
ALPHA DECAY RADIOISOTOPES
ALPHA-BEARING WASTES
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DAUGHTER PRODUCTS
DEVELOPED COUNTRIES
DISPERSIONS
ELEMENTS
EVEN-EVEN NUCLEI
FEDERAL REGION V
FEED MATERIALS PLANTS
FEED MATERIALS PRODUCTION CENTER
FLUIDS
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GASES
HAZARDOUS MATERIALS
HEAVY ION DECAY RADIOISOTOPES
HEAVY NUCLEI
HIGH-LEVEL RADIOACTIVE WASTES
INDUSTRIAL PLANTS
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OFF-GAS SYSTEMS
OHIO
PERFORMANCE TESTING
PITCHBLENDE
POLLUTION CONTROL
PROCESSING
PUBLIC HEALTH
RADIOACTIVE MATERIALS
RADIOACTIVE MINERALS
RADIOACTIVE WASTE MANAGEMENT
RADIOACTIVE WASTE PROCESSING
RADIOACTIVE WASTES
RADIOISOTOPES
RADIUM 226
RADIUM ISOTOPES
RADON
RARE GASES
REGULATIONS
REMEDIAL ACTION
RESIDUES
SOLUTIONS
SPONTANEOUS FISSION RADIOISOTOPES
STORAGE FACILITIES
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THORIUM 230
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