A case study of management and disposal of TENORMs: radiological risk estimation by TSD Dose and RESRAD-ONSITE

IF 1.6 Q4 ENVIRONMENTAL SCIENCES
F. Giacobbo, M. D. Ros, E. Macerata, E. Mossini
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引用次数: 1

Abstract

Naturally Occurring Radioactive Materials (NORMs) and Technologically Enhanced NORMs (TENORMs) are among the principal sources of radiation exposure for humans and for the environment. Therefore, the assessment of the impact of NORMs and TENORMs waste on human health is a key issue for their management and for acceptance of disposal sites. The radiological doses to workers and public due to TENORMs disposal depend on the waste inventory, on the usage of the site during operational activities and post closure phase and on the presence of dwelling areas in the vicinity of the disposal site. In the present study it is presented a methodology to preliminary assess the feasibility of a disposal of TENORMs, mainly constituted by phosphate sludges, originated from phosphoric acid industry activities. The hypothetical case study here presented is inspired by a real case study. Different possible scenarios have been considered. The potential doses to workers and to the public on-site have been estimated by the use of the TSD Dose and the RESRAD on-site codes both during the production life cycle of the site and once it ended. Sensitivity analyses were conducted to evaluate the impact of some key parameters, such the coverage thickness and wind velocity, on potential risk for workers and public.
TENORMs管理与处置个案研究:基于TSD剂量与resrad - site的辐射风险评估
自然发生的放射性物质(规范)和技术增强规范(TENORMs)是人类和环境的主要辐射源。因此,评估norm和TENORMs废物对人类健康的影响是其管理和接受处置场地的关键问题。TENORMs处置对工人和公众造成的辐射剂量取决于废物清单、作业活动期间和关闭后阶段对场址的使用情况以及在处置场址附近是否有居民区。在本研究中,提出了一种方法来初步评估处理TENORMs的可行性,TENORMs主要由磷酸工业活动产生的磷酸盐污泥构成。这里提出的假设案例研究是受到实际案例研究的启发。已经考虑了不同的可能情况。通过使用TSD剂量和RESRAD现场代码,在场地的生产生命周期内和生产结束后,对现场工人和公众的潜在剂量进行了估计。通过敏感性分析,评价了覆盖厚度、风速等关键参数对工作人员和公众潜在风险的影响。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
AIMS Environmental Science
AIMS Environmental Science ENVIRONMENTAL SCIENCES-
CiteScore
2.90
自引率
0.00%
发文量
31
审稿时长
5 weeks
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