Nuclear Waste is one of the most difficult waste products to transport and store because of its dangerous radioactive effects.Given the long life of some of the transuranic elements Nuclear Waste has to be stored in a safe manner for thousands of years which is a tough given that the chances of leakage become enormous in such a long time scale.Storing of Nuclear Waste has to be performed in a extremely complicated manner which is also enormously costly.Also there are problems of NIMBY with Nuclear Waste Storage as nearby residents don’t want such toxic waste stored anywhere close especially as it does not bring any economic or social benefits.Not there is no permanent storage site despite many decades of planning and billions of dollars being spent.While Japan and Europe reprocess the fuel in the hope that they will be used again that remains a dream with thousands of tons of HLW piling up.USA does not reprocess and also has more than 60,000 tons of nuclear waste waiting for a final home.Till then most of the spent nuclear fuel is being stored in spent fuel pools and dry casks making them vulnerable just like another Fukushima
Nuclear Storage – How it is Done
A typical nuclear power plant in a year generates 20 metric tons of used nuclear fuel.High Level Nuclear Waste and Spent Fuel Rods are the biggest problem in storing and disposing of Nuclear Waste.The Fuel Rod Assemblies have to be stored for perhaps as long as 1 million years or more as their radioactive nature decreases. The copper and steel containers will be put underground and built to last as long as 100,000 years.
Future Nuclear Waste Storage Concepts
Nuclear Storage Sites in France- Reprocessing and Hope of Fast Breeders
France produces 1179 tonnes of nuclear waste per year, and reprocesses 852 tonnes. Still, fuel is only reprocessed once and then it, too, needs to be stored. France is expecting that engineers will eventually succeed in building a new type of nuclear reactor called a fast reactor that will use the waste it can’t reprocess as fuel.In France Used fuel is stored at reactor sites in spent fuel pools or dry casks.After which it send to La Hague . The recovered uranium and plutonium is then returned to the owners and the separated wastes are vitrified, sealed into stainless steel canisters, and either stored or returned.
Nuclear Storage Sites in Japan – Same Lack of Policy as France
apan has a policy of reprocessing all nuclear waste. The government and electric utilities state that this is the best policy for nuclear waste management since this process extracts the most highly radioactive materials and concentrates them into a relatively small volume as high level radioactive waste (HLW). The HLW is then vitrified (glassified) and put into stainless steel canisters. Japanese national law calls for permanent disposal of this high level waste in a deep geological final repository in a yet undesignated place in Japan.
The government estimates that approximately 31,000 canisters of HLW will be generated by nuclear power plant operation by the year 2010. Since a final repository site is yet to be determined for the high level waste, the vitrified HLW canisters now being generated by reprocessing in Europe are being shipped to Aomori Prefecture for temporary above ground storage for 30-50 years. – source Greenaction.
Nuclear Storage Sites in USA – Do Not Exist
The US has 65,192 tonnes of the waste but the nation has no place to permanently store the material, which stays dangerous for tens of thousands of years.Currently, there are no permanent disposal facilities in the United States for high-level nuclear waste; therefore commercial high-level waste (spent fuel) is in temporary storage, mainly at nuclear power plants.A permanent facility was planned in the Yucca Mountains in Nevada by the Congress in 1987.This project that has long been the subject environmental and political opposition and with the Obama administration cutting funding this project appears to be in limbo after $9 billion was spent.
Currently High-level waste (spent fuel) is in temporary storage, mainly at nuclear power plants while low-level waste, three commercial land disposal facilities are available, but they accept waste only from certain states or accept only limited types of low-level wastes.
Low Level Waste Sites in USA
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[…] prolonged exposure to moderate radiation can lead to permanent problems and even lead to death.Note Nuclear Storage Policies are a complete mess around the world with no permanent geological sites being approved.One of the primary reasons for […]