Abstract The global trend towards sustainable development with low carbon emissions has encouraged the expansion of nuclear energy. The nuclear reactors, under normal operating conditions or radiological emergency, generate different types of radioactive waste, mainly liquids and solids that require efficient and mobile treatment systems. This work presents the design proposal of a mobile dissolved air flotation system (mDAF) with a high rate for the treatment of liquid radioactive waste generated in the attention and response to radiological post-emergencies of nuclear power plants or environmental emergency responses associated with oil spills. The evidence obtained showed that the design used allows to reach, under the conditions of the experiment tested, removal levels higher than 95 % in the concentrations of oil waste, SO4−2, NO3-, PO3-3, Ni and Cr. Removal levels of approximately 94 % and 75 % for the total Co and 60Co, respectively, were achieved. It was possible to demonstrate the feasibility of designing a mDAF of low cost with enough versatility to treat radioactive liquid waste generated in a radiological post-emergency.

中文翻译：

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高倍率移动式溶气气浮处理液体放射性废物系统的设计

摘要 低碳排放可持续发展的全球趋势促进了核能的发展。核反应堆在正常运行条件或辐射紧急情况下会产生不同类型的放射性废物，主要是需要高效移动处理系统的液体和固体。这项工作提出了一种移动式溶气浮选系统 (mDAF) 的设计方案，该系统具有高处理率，用于处理核电厂放射性紧急事件后或与石油泄漏相关的环境应急响应中产生的液体放射性废物。 . 获得的证据表明，在所测试的实验条件下，所使用的设计允许达到高于 95% 的废油、SO4-2、NO3-、PO3-3、镍和铬。分别达到了总 Co 和 60Co 的约 94% 和 75% 的去除水平。可以证明设计具有足够多功能性的低成本 mDAF 来处理放射性紧急情况后产生的放射性液体废物的可行性。