基于生命周期评价的贫化六氟化铀转化设施环境影响分析

目的 研究贫化六氟化铀（DUF₆）转化设施整个生命周期中环境影响的主要类型以及相应的影响过程。方法 运用生命周期评价（LCA）方法对DUF₆转化设施进行生命周期环境影响评价。结果 DUF₆转化设施整个生命周期中,一次能源消耗对环境影响（约占89.85%）的贡献在各类环境影响类别中最大,运营期的环境影响（约占81.54%）大于建设期（约占18.46%）。结论 通过减少氮气生产、工艺用水和混凝土生产中一次能源的消耗,可有效降低DUF₆转化设施整个生命周期对环境的影响。

Environmental impact analysis of depleted uranium hexafluoride conversion facilities based on life cycle assessment

Objective To study the main types of environmental impacts and impact processes during the entire life cycle of depleted uranium hexafluoride (DUF₆) conversion facilities. Methods Use Life Cycle Assessment (LCA) method to assesse the life cycle environmental impact of the DUF₆ conversion facility. Results During the life cycle of the DUF₆ conversion facility, the contribution of primary energy consumption(about 89.85%) is the largest among various environmental impact categories, and the environmental impact in the operation period (about 81.54%) is greater than that in the construction period (about 18.46%). Conclusion By reducing the primary energy consumption in nitrogen production, process water and concrete production, the environmental impact of the entire life cycle of the DUF₆ conversion facility can be effectively reduced.