JPDR(Japan Power Demonstration Reactor)
Waste Management
The major activities related to radioactive waste management were development of a shielding container for radioactive waste, field tests of shallow ground disposal for very-low contamination level concrete waste and reuse of non-radioactive waste, which represented a large portion of the dismantled waste. The activities were conducted to establish a safe management system for large amounts of dismantled waste arising from the decommissioning of nuclear facilities.
Radioactive Waste
To establish safe management techniques for radioactive waste generated from the dismantlement of the nuclear reactor installations, waste containers and methods for cement solidification of crushed concrete waste were developed.
Shielding containers
Very Low Level Waste Disposal
Disposal tests for very low contamination level concrete waste arising from the dismantling process has been conducted and the safety of a simple trench disposal technique has been demonstrated.
Overview of the disposal test facility
Non-Radioactive Waste
A large portion of the dismantled waste was classified as non-radioactive waste (NR). The NR was crushed into small concrete debris and then used for backfilling material for the underground spaces arising in the JPDR decommissioning program and served for pavement or foundation material for JAERI's Tokai site.
Backfilling of underground spaces by crushed concrete debris
