UTILITIES

Posiva introduces ONKALO and its principle of operation

System of tunnels developed for the safe burial of spent nuclear fuel in bentonite packed canisters

Pasi Tuohimaa
Posiva’s ONKALO tunnel system has been designed to accommodate 6500 uranium tons of spent fuel. Credit: Posiva

Posiva’s ONKALO tunnel system has been designed to accommodate 6500 uranium tons of spent fuel. Credit: Posiva

Posiva's ONKALO, the final disposal facility for spent nuclear fuel, was initially an underground research facility where studies were carried out to verify the suitability of the bedrock in Olkiluoto...

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