Retrieval of fluidizable radioactive wastes from storage facilities
International Atomic Energy Agency, Oct 30, 2006 - Business & Economics - 135 pages
Some radioactive wastes arising at nuclear facilities have been stored for an extended period of time, often beyond the expected life time of the storage vessels. IAEA Member States are moving forward with actions to retrieve such wastes for safe disposition. This document covers the development of waste retrieval systems, with a specific focus on the safe removal and transfer of wastes which are in fluid form or which can be mobilized as wet or dry media. Detailed discussions are included on retrieval methodology, technologies and approaches. Extensive examples are provided for 21 waste retrieval projects completed or currently under way around the world, including lessons learned.--Publisher's description.
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acid additional Annex approximately BNFL caesium charge vessel chemical contained CSEE Department of Energy deployed diameter DISTRIBUTION OF RETRIEVAL Downstream process End Effector ENERGY DOE Environmental equipment evaporator bottoms facility fluidic Focus Area TFA gunite Hanford Hanford Site in-tank Infrastructure upgrade installed jet pump layer liquid located Magnox Mixer Pump mixing NATIONAL LABORATORY PNNL NORTHWEST NATIONAL LABORATORY nozzle NPPs Nuclear Oak Ridge National operations PACIFIC NORTHWEST NATIONAL pipe pipeline plug plutonium radiation radioactive waste RBMK Reasons for retrieval RETRIEVAL PROCESS 3.1 retrieval system design Richland Ridge National Laboratory riser sampling Savannah River Site Sellafield silo Slovakia sludge sludge walker sluicer sluicing sluicing jets slurry spray ball STATEMENT OF PROBLEM Storage arrangements storage tanks storage vessel supernate Tank 17 tank walls tank waste Tanks Focus Area tested transfer line transfer pump U.S. Department vitrification Waste characterization waste management waste retrieval system Waste Tank Waste type zeolite