Unit operations used to treat process and/or waste streams at nuclear power plants. [R]
Estimates are given of the annual amounts of each generic type of LLW (i.e., Government and commerical (fuel cycle and non-fuel cycle)) that is generated at LWR plants. Many different chemical engineering unit operations used to treat process and/or waste streams at LWR plants include adsorption, evaporation, calcination, centrifugation, compaction, crystallization, drying, filtration, incineration, reverse osmosis, and solidification of waste residues. The treatment of these various streams and the secondary wet solid wastes thus generated is described. The various treatment options for concentrates or solid wet wastes, and for dry wastes are discussed. Among the dry waste treatment methods are compaction, baling, and incineration, as well as chopping, cutting and shredding. Organic materials (liquids (e.g., oils or solvents) and/or solids), could be incinerated in most cases. The filter sludges, spent resins, and concentrated liquids (e.g., evaporator concentrates) are usually solidified in cement, or urea-formaldehyde or unsaturated polyester resins prior to burial. Incinerator ashes can also be incorporated in these binding agents. Asphalt has not yet been used. This paper presents a brief survey of operational experience at LWRs with various unit operations, including a short discussion of problems and some observations on recent trends.
- Research Organization:
- Oak Ridge National Lab., TN (USA)
- DOE Contract Number:
- W-7405-ENG-26
- OSTI ID:
- 5193383
- Report Number(s):
- CONF-800802-14; TRN: 80-015244
- Resource Relation:
- Conference: 89. annual meeting of the American Institute of Chemical Engineers, Portland, OR, USA, 17 Aug 1980
- Country of Publication:
- United States
- Language:
- English
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12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
NUCLEAR POWER PLANTS
RADIOACTIVE WASTE PROCESSING
WATER COOLED REACTORS
COMBUSTION
LOW-LEVEL RADIOACTIVE WASTES
SOLID WASTES
SOLIDIFICATION
CHEMICAL REACTIONS
MANAGEMENT
NUCLEAR FACILITIES
OXIDATION
PHASE TRANSFORMATIONS
POWER PLANTS
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RADIOACTIVE MATERIALS
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THERMAL POWER PLANTS
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WASTES
220502* - Nuclear Reactor Technology- Environmental Aspects- Radioactive Effluents
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