Decommissioning, or nuclear decommissioning, is a normal activity in the lifetime of all nuclear installations. Its purpose is to completely dismantle a facility where there is presence of radioactive or fissile material in a nuclear facility adopting special precautions.
Three options for decommissioning have been internationally adopted:
- Immediate Dismantling allows for the facility to be removed from regulatory control relatively soon after shutdown or termination of regulated activities. Usually, the final dismantling or decontamination activities begin within a few months or years, depending on the facility.
- Safe Enclosure postpones the final removal of controls for a longer period, usually in the order of 40 to 60 years. The facility is placed into a safe storage configuration until the eventual dismantling and decontamination activities occur.
- Entombment places the facility into a condition that will allow the remaining on-site radioactive material to remain on-site without the requirement of ever removing it totally.
Comecer provides technological support or decommissioning
For example, Comecer has made the following:
- Shielded hot cells for liquid radwaste handling
- Radwaste filtering systems
- System to scan transport containers and to store radioactive waste
- Transport containers for fissile matierials and radioactive waste
- Specially constructed Bunker doors