Technical complements: Before and after shipment: interim storage facilities

Description of Rokkasho-Mura interim storage facility

This facility is a part of a substantial nuclear site located 55 m above sea level, which includes an enrichment plant and repository for LLW arising from nuclear power plants; it will host the future reprocessing plant to be built by JNFL.

The interim storage facility includes two buildings:

Canister receiving building

This building is equipped with cranes for handling the transportation package, ventilation equipment, solid waste storage facility, etc... A temporary store can hold a maximum of 22 transport casks.

Canister storage building

This building includes canister inspection equipment, and canister storage space.

Storage channels for the canisters are located in an underground area with sufficiently thick concrete walls (160 storage channels).

9 canisters are arranged vertically, and contained in thimble tubes. This means that the cooling air flows along the thimble tubes.

Rokkasho-Mura Waste management facility, Aomori Prefecture (Japan)