From nuclear plant to repository: The paths of radioactive waste : 無料・フリー素材/写真
From nuclear plant to repository: The paths of radioactive waste / Oeko-Institut e.V.
ライセンス | クリエイティブ・コモンズ 表示-継承 2.1 |
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説明 | The graph shows the management pathways for various types of waste from nuclear power plants, up to and including final storage. Spent fuel elements must be placed in a repository for high-level radioactive waste, where they can be stored safely for very long periods of time. In Germany, the search for a suitable repository site has now begun again and is likely to take many more years. Until then, spent fuel elements are generally placed in local interim storage facilities at the nuclear power plants. Until 2005, spent fuel elements from power reactors were sent to reprocessing plants in France and the United Kingdom. The reprocessed radioactive waste (vitrified waste canisters and hulls) is now being returned to Germany, where, after interim storage, it will ultimately be sent to a repository. Previously, all this waste was held in Gorleben central interim storage facility, but four local facilities are now being used to store the last of the casks being returned. Much of the waste from nuclear power plant operations and dismantling can be stored in Konrad repository after it opens. Many materials from dismantling have very low levels of radioactivity or are not radioactive at all. Under precisely regulated conditions, these levels are measured and assessed (see red dot on the graph: “Measuring for clearance decision”). Below certain thresholds, the materials are released from regulatory control and, depending on the results of the assessment, can then be conventionally used or disposed of. |
撮影日 | 2015-12-04 10:26:38 |
撮影者 | Oeko-Institut e.V. |
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