Research and development of a filter system for the separation of dust and aerosols in the decontamination of concrete surfaces
When nuclear power plants finally shut down and are dismantled, contaminated surface layers of buildings must be removed, if it is not intended to dismantle and store the entire structure. The removal of the concrete in layers produces considerable amounts of dust and aerosols, which must be separated as completely as possible. The aim of the project was to find filter systems for economic separation of this dust. A literature study showed that cleanable filters have advantages in comparison with other methods of separation. For this reason, three cleanable filters were investigated during the course of this research project in tests using inactive concrete samples. Separation levels of over 99.9% could be achieved with all tested filters. Furthermore, the effectiveness of one filter was demonstrated in decontamination operations. The manufacturers guarantee useful lives of 2,000 operating hours for the tested filters. The costs of the separation of the dust are negligible in comparison with the expenditure for the removal of the concrete layers, the subsequent conditioning and the disposal.
Bibliographic Reference: EUR 11995 DE (1989) FS, 63 pp., ECU 6.25
ISBN: ISBN 92-825-9469-6;CD-NA-
Record Number: 198910417 / Last updated on: 1994-12-01
Original language: de
Available languages: de