Siempelkamp Nukleartechnik GmbH has gained lots of experience from melting ferrous metals for recycling in the nuclear cycle as well as for release to general reuse. Due to the fact that the world market prices for non-ferrous metals like copper, aluminium or lead raised up in the past and will remain on a high level, recycling of low-level contaminated or activated metallic residues from nuclear decommissioning becomes more important. Based on the established technology for melting of ferrous metals in a medium frequency induction furnace, different melt treatment procedures for each kind of non-ferrous metals were developed and successfully commercially converted. Beside different procedures also different melting techniques such as crucibles, gas burners, ladles etc. are used. Approximately 340 Mg of aluminium, a large part of it with a uranium contamination, have been molten successfully and have met the release criteria of the German Radiation Protection Ordinance. The experience in copper and brass melting is based on a total mass of 200 Mg. Lead melting in a special ladle by using a gas heater results in a total of 420 Mg which could be released. The main goal of melting of non-ferrous metals is release for industrial reuse after treatment. Especially for lead, a cooperation with a German lead manufacturer also for recycling of non releasable lead is being planned.
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The 11th International Conference on Environmental Remediation and Radioactive Waste Management
September 2–6, 2007
Bruges, Belgium
Conference Sponsors:
- Nuclear Division and Environmental Engineering Division
ISBN:
978-0-7918-4339-0
PROCEEDINGS PAPER
Melting of Low-Level Radioactive Non-Ferrous Metal for Release
Ulrich Quade,
Ulrich Quade
Siempelkamp Nukleartechnik GmbH, Krefeld, Germany
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Thomas Kluth,
Thomas Kluth
Siempelkamp Nukleartechnik GmbH, Krefeld, Germany
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Rainer Kreh
Rainer Kreh
Siempelkamp Nukleartechnik GmbH, Krefeld, Germany
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Ulrich Quade
Siempelkamp Nukleartechnik GmbH, Krefeld, Germany
Thomas Kluth
Siempelkamp Nukleartechnik GmbH, Krefeld, Germany
Rainer Kreh
Siempelkamp Nukleartechnik GmbH, Krefeld, Germany
Paper No:
ICEM2007-7036, pp. 103-106; 4 pages
Published Online:
May 29, 2009
Citation
Quade, U, Kluth, T, & Kreh, R. "Melting of Low-Level Radioactive Non-Ferrous Metal for Release." Proceedings of the The 11th International Conference on Environmental Remediation and Radioactive Waste Management. 11th International Conference on Environmental Remediation and Radioactive Waste Management, Parts A and B. Bruges, Belgium. September 2–6, 2007. pp. 103-106. ASME. https://doi.org/10.1115/ICEM2007-7036
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