Finland is preparing to commence operations at the world's first facility for the permanent disposal of spent nuclear fuel, with authorities anticipated to issue the license in the upcoming months. The facility, referred to as Onkalo, will become a final storage site for substantial amounts of radioactive waste.
The construction of Onkalo, which means "cave" in Finnish, began on the country's western coast in 2004. The project has cost approximately 1 billion euros and is expected to operate until the 2020s.
Facility Details and Location
The facility is situated on Olkiiluoto Island, in a densely forested area, located about 15 kilometers from the nearest town, Yurajoki, which has a population of around 9,000, many of whom work at the power plant or the storage facility. The site was chosen due to its proximity to three of Finland's five nuclear reactors and its low geological risk of earthquakes.
Thomas Pery, a geologist at Posiva, the company responsible for nuclear waste management in Finland, stated, "Isolation from civilization and humans on the surface is crucial due to the radiation emitted from the waste." He added, "Through this final disposal, we can eliminate waste more safely than storing it in surface facilities."
Background & Context
Since the 1950s, approximately 400,000 tons of spent nuclear fuel have been produced, according to a 2022 report from the International Atomic Energy Agency. Currently, two-thirds of this amount remains in temporary storage, while the remaining third is recycled through a complex process. Presently, spent nuclear fuel is temporarily stored in spent fuel pools at individual reactors and in above-ground dry storage sites.
In 1994, legislation was passed mandating the management, storage, and permanent disposal of nuclear waste generated in Finland within the country's borders. Finnish Environment Minister Sari Multala explained, "At that time, some waste was exported, but we wanted to handle it ourselves."
Impact & Consequences
Some experts, such as Edwin Lyman, Director of Nuclear Safety at the Union of Concerned Scientists, warn that geological disposal of nuclear waste still faces "uncertainty." He noted that permanent underground storage is preferable to leaving waste on the surface, where it could be vulnerable to sabotage.
Research is underway to develop warning signs about nuclear waste sites that can be understood by humans after 10,000 years or more, considering that nuclear waste remains hazardous for thousands of years. Juha Aromia, Deputy Director of Greenpeace in Finland, remarked, "We have witnessed Chernobyl and Fukushima, and it is clear that nuclear waste poses a challenge, and we may be close to finding a solution to it."
Regional Significance
The establishment of Onkalo is a significant step for Finland in managing nuclear waste sustainably and safely. It reflects the country's commitment to environmental safety and responsible waste management practices. As the facility prepares to begin operations, it may set a precedent for other nations grappling with similar challenges in nuclear waste disposal.
In conclusion, Onkalo represents a pioneering effort in the global landscape of nuclear waste management, aiming to address the long-standing issues associated with spent nuclear fuel. The facility's successful operation could pave the way for future advancements in safe waste disposal methods.