Development and assessment of two decontamination processes : Closed electropolishing system for decontamination of underwater surfaces - Vibratory decontamination with abrasives
Two decontamination processes have been developed for use on the stainless steel components of nuclear power plants. The first process uses an underwater closed electroplating system for the decontamination of large stainless steel surfaces in flooded regions without loss of electrolyte. Large underwater contaminated areas can be treated with an electropolishing head covering an area of 2 m2 in one step. The decontamination factors achieved with this technique range between 100 and 1000. The second process consists of the decontamination of nuclear components using vibratory equipment with self-cleaning abrasives generating a minimum quantity of waste. The technique may reach contamination factors similar to those obtained with other abrasive methods (such as brush abrasion, abrasive blasting). The decontamination factors obtained range between 5 and 50. Only a small quantity of waste is generated, which is treated and reduced in volume by filtration and evaporation.
Bibliographic Reference: EUR 14524 EN (1992) 44 pp., FS, ECU 6
ISBN: ISBN 92-826-4504-5
Record Number: 199310004 / Last updated on: 1994-11-29
Original language: en
Available languages: en