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Slutförvaring av högradioaktivt kärnavfall : En studie av Svensk Kärnbränslehantering AB:s behandling av alternativa slutförvaringsmetoderLoukkola, Sarah, Groth, Isabelle January 2012 (has links)
Kärnkraften tillgodoser idag en stor del av Sveriges behov av elektricitet, men med kärnkraften kommer även ett avfall som är långlivat och högradioaktivt. Omhändertagande av detta avfall är omdiskuterat och det är kärnkraftindustrins ansvar att ta hand om avfallet. För att lyckas med detta har ett gemensamt bolag för den svenska kärnkraftindustrin skapats, Svensk Kärnbränslehantering AB (SKB). Syftet med studien har varit att utreda i vilken omfattning alternativa metoder till Svensk Kärnbränslehantering AB:s metod för slutförvaring av högradioaktivt kärnavfall har studerats. Resultatet och diskussionen visar att ovissheterna kring slutförvaring av högradioaktivt kärnavfall är stora på grund av den långa förvaringstiden. En ansökan om slutförvaring av högradioaktivt avfall enligt KBS-3-metoden är inskickad till Strålsäkerhetsmyndigheten och till mark- och miljödomstolen i Nacka Tingsrätt för bedömning och beslut. Alternativa metoder till KBS-3-metoden har inte utretts tillräckligt, vilket bland annat beror på att större delen av den forskning som utförts har fokuserat på KBS-3-metoden och utvecklingen av denna. Innan alternativ som djupa borrhål kan räknas bort helt behövs närmare forskning och uppföljning på området, då tekniska framsteg gjorts de senaste åren. Alternativ som innebär kvittblivning kräver en ändring i lagen, då alternativen strider mot principen om nationellt ansvar. Metoden skulle innebära slutförvaring på internationell mark. När det gäller transmutation krävs långsiktiga satsningar på kärnkraften och då främst på nya typer av reaktorer. Transmutation bidrar till att ansvaret överförs på kommande generationer, då kärnkraften kommer att vara i drift ytterligare en lång period. Det medför att kärnavfallet inte kommer kunna tas om hand av den generationen som har genererat det. Därför anses detta alternativ i nuläget inte vara aktuellt. Information till kommande generationer kan ses som en säkerhetsrisk men för lite information kan även det ses som en risk, därför behövs ett väl utbyggt informationssystem för slutförvaret som håller i flera generationer. / Nuclear power is currently supplying large parts of the Swedish electricity demand, but with nuclear power there will also be a waste that is long-lived and highly radioactive. The disposal of this waste is controversial and it is the nuclear industry's responsibility to take care of. A joint company for the Swedish nuclear industry was created to achieve this, Svensk Kärnbränslehantering AB (SKB). The aim of this study was to investigate to what extent alternative methods to Svensk Kärnbränslehantering AB:s method for final storage of highly radioactive nuclear waste has been studied. The aim of this research was to study how Svensk Kärnbränslehantering AB has been studying the alternative methods for the final disposal of highly radioactive nuclear waste. The results and discussion show that the uncertainties about the final disposal of highly radioactive nuclear waste are large due to the long storage time. An application for disposal of highly radioactive nuclear waste according to the KBS-3 method is submitted to Strålsäkerhetsmyndigheten and to the Land and Environmental court in Nacka district court, for assessment and decision. The study shows that alternative approaches to the KBS-3 method have not been sufficiently investigated, which is due to the larger part of the research conducted being focused on the KBS-3 method and its development. Before options like deep boreholes can be discounted entirely there is a need of further research and follow up in the area, as new technological advances have been made in recent years. Options involving disposal requires a change in the law, because the options are contrary to the principle of national responsibility. The method would involve disposal on international territory. The option of transmutation requires long term investments in nuclear power, mainly in new types of reactors. Transmutation contributes to the transfer of responsibilities to future generations, because the nuclear power will be in operation for a long period. This means that the nuclear waste will not be taken care of by the generation that has generated it. Therefore, this alternative is currently not an option. Information for further generations can be seen as a security risk, but too little information can also be seen as a danger, therefore, a well-developed information system for the final disposal that will last for many generations is necessary.
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Utmaningar och framtidsmöjligheter för utvecklingen av Svensk Kärnbränslehantering ABs lösning KBS-3 / Challenges and Future Opportunities for the Development of Svensk Kärnbränslehantering AB’s Solution KBS-3Wallin, Alva, Rosén, Tilda, Harding Olsson, Hjalmi January 2024 (has links)
This study examines the KBS-3 method for nuclear waste management developed by the Swedish Nuclear Fuel Waste Management Company (SKB). This report strives to uncover potential challenges and opportunities for the future development of KBS-3. The study is relevant because the Swedish government is investing in nuclear power where waste must be safely stored to protect the environment from radiation. From a technical perspective, the results indicate a difficult balance between developing the method in line with new research and realising the project. A possible method for the future is reprocessing, but even here the need for KBS-3 would remain as a smaller amount of waste still needs to be stored. Furthermore, from a social perspective, there does not seem to be a clear consensus between researchers and the industry, particularly regarding corrosion risks. Although these discussions can improve the method, there is a risk that they may negatively impact public trust in KBS-3. Similarly, regarding the commercialisation of stakeholder management: it is important that social acceptance is earned through genuine engagement rather than something being sold. From a cost perspective, small improvements are crucial for KBS-3. Saving money within the value chain without compromising safety is vital, but SKB must communicate such changes openly to ensure continued social acceptance. Balancing conflicting goals: technology, social acceptance, and costs seem to reflect a broader societal challenge where different interests often oppose each other. While some may be satisfied with KBS-3 for final disposal even in the future, others may want to continue striving for a solution that does not burden future generations at all. Regardless, KBS-3 can continue to develop as a solution for nuclear waste management in Sweden until a more sustainable method emerges.
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