核燃料元件制造副产品含铀氢氟酸再利用的可行性研究

目的 研究核燃料元件生产过程中产生的含铀氢氟酸潜在再利用途径，以及不同再利用途径的辐射影响。方法 结合氢氟酸的应用范围，以及含铀氢氟酸的特性，研究含铀氢氟酸可以再利用的领域。通过工艺分析，确定操作人员的辐射照射途径，并估算其辐射影响。结果 含铀氢氟酸可在不锈钢酸洗、蚀刻、除去金属氧化物和汽车清洗液等行业进行再利用，对公众产生的附加剂量均低于1 mSv/a。其中，在蚀刻再利用过程中所致操作人员的附加年有效剂量最大（1.20×10^-3mSv/a）。结论 从辐射影响方面分析，含铀氢氟酸在不锈钢酸洗、蚀刻、除去金属氧化物和汽车清洗液等行业的应用是可行的。

Feasibility study on the reuse of by-product hydrofluoric acid of nuclear fuel element manufacturing

Objective To study the potential reuse of uranium-containing hydrofluoric acid produced during the production of nuclear fuel components, and radiation impacts of different reuse pathways.Methods Combined with the application range of hydrofluoric acid and the characteristics of uranium-containing hydrofluoric acid, study on the fields in which uranium-containing hydrofluoric acid can be reused is carried out. Through process analysis, the operator's radiation exposure path is established and its radiation impacts are estimated.Results Uranium-containing hydrofluoric acid can be reused in stainless steel pickling, etching, removal of metal oxide and automotive cleaning fluids, and the additional dose to the public is less than 1 mSv/a. Among them, the biggest additional annual effective dose of the operator caused by the etching process is (1.20×10^-3mSv/a).Conclusion From the perspective of radiation impacts, the application of uranium-containing hydrofluoric acid in stainless steel pickling, etching, removal of metal oxide and automotive cleaning fluids is feasible.