New decontamination methods : chemical gels, electrolysis with a swab device and abrasive blasting
The decommissioning of nuclear installations requires efficient decontamination methods which are simple to apply and which produce a small amount of easily processable waste. With this in mind, three decontamination methods, particularly well-suited to decommissioning, were studied. These were: - spraying of gels carrying chemical decontaminating agents; - electropolishing with a swab device, and - abrasive blasting. After parametric tests on non-radioactive and active samples, the industrial application of these methods in the dismantling of installations was studied. This included: - decontamination of pieces from the German BWR ISAR by immersion and gel spraying; - decontamination, mainly by gel spraying, and dismantling of the Brennilis bituminisation plant; - decontamination of part of the cooling circuit of the graphite gas reactor G2 by gel spraying, and - decontamination of a component of the FBR SuperPhenix, using dry abrasive blasting.
Bibliographic Reference: EUR 13497 FR (1991) 92 pp., FS, ECU 8.75
ISBN: ISBN 92-826-2558-3
Record Number: 199110717 / Last updated on: 1994-12-02
Original language: fr
Available languages: fr