利比亚东南部油田天然放射性物质的评估

Q4 Medicine
U. Elghawi, Feisal A. Abutweirat, Taha S. Barka
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引用次数: 0

摘要

对利比亚东南部油田蒸发池污泥中NORMs的浓度进行了调查。使用基于高纯锗(HPGe)探测器的伽马光谱系统测定了石油生产过程中产生的土壤中226Ra、232Th和40K的活性浓度。226Ra的浓度为83至1000 Bq kg−1,232Th的浓度为59至315 Bq kg–1,40K的浓度为109至304 Bq kg-1。为了评估放射性影响,计算了镭当量活度和外部危害。这些结果的规模表明,这些池塘需要在现场进行特殊处理,通过在泻湖干燥后将池塘与清洁土壤混合,以降低剂量率并将NORM对环境的影响降至100μSv/y以下。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Evaluation of naturally occurring radioactive materials in oilfields of south east of Libya
An investigation was carried out to find out the concentration of NORMs in evaporation ponds sludge in south eastern oilfield of Libya. Activity concentrations of 226Ra, 232Th and 40K in soil generated during oil production operations were determined using a gamma spectroscopy system based on high purity germanium (HPGe) detector. Concentrations ranged from 83 to 1000 Bq kg−1 for 226Ra, 59 to 315 Bq kg−1 for 232Th and 109 to 304 Bq kg−1 for 40K. To evaluate the radiological effects, radium equivalent activity and external hazard are calculated. The magnitude of these results demonstrates the need of these ponds for a special treatment on site to reduce the exposure to a value below 100 μSv/y, by mixing the pond after drying the lagoon with clean soil to reduce the dose rate and minimise the environmental impact of NORM.
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来源期刊
International Journal of Low Radiation
International Journal of Low Radiation Environmental Science-Health, Toxicology and Mutagenesis
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期刊介绍: The IJLR is a peer-reviewed journal dedicated to the publication of research articles, review papers and technical notes in all domains related to low-dose radiation, among which are the biological and health effects in humans and the biota, in vitro and in vivo research on low radiation effects, regulatory and policy aspects, risk estimation and public perception.
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