How Much Is There? How Is It Stored Today? Radiation Risk and Safety. Regulatory Oversight. What Other Countries Are Doing.
Monitoring Alternate Fuel Cycles. A Safe Approach. About the Project. Working in Partnership. Social Research and Dialogue. International Co-Operation and Research. Engaging With People. Community Engagement. Engaging Municipal Organizations. Indigenous Engagement. Youth Engagement. Project Phases. Safety: Protecting People and the Environment.
Why a Deep Geological Repository? Demonstrating Safety. Public and Worker Safety. Centre of Expertise. Deep Geological Repository. Multiple-Barrier System. Surface Facilities. Safe Containment.
Transportation Planning. Transportation Regulations and Oversight. International Experience. Site Selection. About the Process. How It Was Developed. Public Input. Specialist Input. Guiding Principles. It doesn't require special location and transportation.
The radioactive waste can be easily stored at a on-site reactor facility or adjacent to the source reactor. In addition, it is convenient to retrieve the waste from those storage cylinders for future reprocessing. The other storage methods involve the selection of appropriate geologic location for the storage of high level radioactive waste. In this method, deep and stable geologic formations were selected to store the nuclear waste for long term.
The spent fuel and radioactive waste are then placed in the tunnels. Since the geologic formations chosen in this method are far from human population centers, the nuclear wastes are expected to be stably isolated from human living environment for the long term.
This technique is still under investigation and development. Several countries in the world e. England and France were on the way of using this geologic disposal technique.
However, there are still many concerns about this geologic disposal technique, because the stored nuclear waste has potential to leak into the environment if any huge geologic changing occurs e. Moreover, even very low leakage or migration of nuclear waste may result in a huge disaster because the half-lives of the nuclear waste are so long.
As technical specialists, we know about the weak links in the plant [security], and there are some. But I doubt that these should be disclosed. Around , people live in the city of Zaporizhia and safety issues have risen to the fore among local people. Most support the reactor for the jobs it provides, but environmental concerns have grown since a plant shutdown in December amid rumours of a radiation leak, which were denied by the company. Entrance to Zaporizhia nuclear power station.
As a result, uranium fuel supplies are fast becoming a new east-west battlefield in the post-Soviet great energy game. Nine of these will reach the end of their design lifetimes in the next five years, and three have already.
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Thank you! Pollution As nuclear waste piles up, scientists seek the best long-term storage solutions Researchers study and model corrosion in the materials proposed for locking away the hazardous waste by Mitch Jacoby March 30, A version of this story appeared in Volume 98, Issue In brief More than a quarter million metric tons of highly radioactive waste sits in storage near nuclear power plants and weapons production facilities worldwide, with over 90, metric tons in the US alone.
Scientists are studying glass samples to understand long-term corrosion of vitrified nuclear waste. These micrographs show the results of accelerated aging tests on two types of aluminosilicate glasses. Ions have leached from the glasses and crystallized on their surfaces: the largest of these false-color crystals yellow on left, pale blue on right are sodium aluminum silicate hydrates of various composition and structure.
And we are—more or less—handing it to our children. Gerald S. Frankel, materials scientist, Ohio State University. Credit: US Department of Energy. These underground tanks in Hanford, Washington, were built in the s to store liquid radioactive waste from plutonium production.
Today, the contents have been transferred to newer tanks in preparation for vitrification. Widespread storage Tens of thousands of metric tons of radioactive spent nuclear fuel sit in steel-and-concrete storage casks cutaway at nuclear power plants across the US map as they await permanent disposal. Credit: Pacific Northwest National Laboratory. Meline pours a sample of molten glass to study corrosion in vitrified nuclear waste.
Related: Tank Troubles. Vitrification of nuclear waste seems to be well established by now, but actually it still faces complex problems. You might also like Nuclear Power. Proposed nuclear waste storage materials may have a corrosion problem. Radioactive Waste Safety.
Tank Troubles. Share X. To send an e-mail to multiple recipients, separate e-mail addresses with a comma, semicolon, or both. Title: As nuclear waste piles up, scientists seek the best long-term storage solutions.
Submit Sending Purniah March 30, AM. Its well known that the spent fuel taken out of a reactor contains a lot of useful material. Unused fuel, Plutonium and radioactive fission fragments which can be used for medical treatment etc. If these are removed then the remaining waste is very less. So it makes sense to reprocess the spent fuel. Mike Keller March 30, PM. Reprocessing is an ideal that more or less guarantees no solution will emerge. Get rid of the stuff, as in deep underground.
Anja May 18, PM. But it does not disappear when you bury it underground. You just don't see it. But we don't know what it will do underground overtime. Stan October 26, AM. If you reprocess the spent fuel then there is no waste to dispose of. Right now we use less than 0. Put spent waste in a fast actinide burner and you can recover essentially ALL of the energy. We have enough uranium already mined to power the planet for the next years. And there is NO long term waste.
After a few centuries a period of time that it's easy to store something for you are left with silver, palladium, and rhenium, along with other valuable industrial elements. I wish I had the 'problem' of having a few million metric tons of palladium Phil March 30, AM. Partially spent nuclear fuel will be used as a fuel source for Generation 4 reactors being developed now by Bill Gates' TerraPower and others. It will supply electricity for decades without mining any more uranium.
Dry Cask storage is safe and adequate for the near future. In my opinion and that of many others permanent disposal is costly and not necessary.
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