Published 1987 | Version v1
Report

Decontamination of nuclear facilities by electrochemical methods

  • 1. Institute of Isotopes of the Hungarian Academy of Sciences, Budapest

Description

Three electrochemical, remotely operated decontamination equipments were developed for the Paks NPP. The first equipment was constructed for the decontamination of the main circulating pump case, the second equipment for the collectors of the steam generator and the third equipment for the main gate valve case of the primary circuit. All the equipments use movable cathodes. The main circulating pump case was decontaminated eight times. The electrolyte contained sulfuric, oxalic and phosphoric acid. The decontamination factor of the plant 10-500. The duration of the process was 8-12 hours. The collective dose for the staff (3-4 workers) was about 2-3 mSv. Only 100-200l of radioactive effluents were produced

Additional details

Publishing Information

Imprint Title
Proceedings of the 1987 international decommissioning symposium
Journal Page Range
p. IV.188-IV.200.
Report number
CONF-871018--Vol.2

Conference

Title
International decommissioning symposium.
Dates
4-8 Oct 1987.
Place
Pittsburgh, PA (USA).