1.
Nuclear waste, mixed with resins,
is poured into steel containers where it sets into insoluble blocks
2.
Containers are placed inside a thick-walled sarcophagus, made of copper or steel, and sealed shut
Rock barrier
Concrete
3.
Deep underground, tombs of buffer materials, which soak up radiation and minimise water seepage, surround each tube
4.
Finally, each storage tunnel is filled with concrete. Hundreds of metres of rock form the final barrier
Rock barrier
Concrete
1.
Nuclear waste, mixed with resins,
is poured into steel containers where it sets into insoluble blocks
2.
Containers are placed inside a thick-walled sarcophagus, made of copper or steel, and sealed shut
3.
Deep underground, tombs of buffer materials, which soak up radiation and minimise water seepage, surround each tube
4.
Finally, each storage tunnel is filled with concrete. Hundreds of metres of rock form the final barrier