Ambient Radiological Condition around an Operating Uranium Mill Tailings Disposal Facility at Turamdih, India

IF 1 4区工程技术 Q4 INSTRUMENTS & INSTRUMENTATION

MAPAN Pub Date : 2024-06-18 DOI:10.1007/s12647-024-00754-1

Rajesh Kumar, V. N. Jha, S. K. Jha, S. K. Sahoo, G. P. Verma, M. S. Kulkarni

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Abstract

Large quantity of the feed forms part of the solid waste (tailings) slurry in the low grade uranium ore processing plant at Turamdih in Singhbhum region of Jharkhand, India. Coarser size fraction of this waste is used for backfilling of the underground uranium mines and fine fraction is discharged into an engineered impoundment system or tailings pond. Since inception of the discharges, field expeditions have been performed as part of the comprehensive radiological monitoring program for the facility. The monitoring program broadly consists of ambient gamma dose rate, atmospheric ²²²Rn and long lived alpha activity measurement around the facility and the estimation of radionuclide in diverse environmental matrices collected from the adjoining sites. Findings reflect that the radiological conditions are comparable to the pre-existing background level adjoining the tailings pond impoundment. Further, measurements for more than a decade confirm that the atmospheric radon concentration profile just a few meters beyond the embankment is indistinguishable from the background.

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印度图拉姆迪赫正在运行的铀矿厂尾矿处置设施周围的环境辐射状况

在印度贾坎德邦 Singhbhum 地区的 Turamdih 低品位铀矿加工厂，大量给料构成了固体废物（尾矿）泥浆的一部分。这些废料中较粗的部分用于回填地下铀矿，较细的部分则排入工程蓄水系统或尾矿池。自开始排放以来，作为该设施全面辐射监测计划的一部分，一直在进行实地考察。监测计划主要包括设施周围的环境伽马剂量率、大气 222Rn 和长寿命 α 放射性活度测量，以及从邻近地点收集的各种环境基质中放射性核素的估算。测量结果表明，辐射条件与尾矿库附近原有的本底水平相当。此外，十多年的测量证实，堤坝外几米处的大气氡浓度分布与本底无异。

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来源期刊

MAPAN 工程技术-物理：应用

CiteScore

2.30

自引率

20.00%

发文量

审稿时长

3 months

期刊介绍： MAPAN-Journal Metrology Society of India is a quarterly publication. It is exclusively devoted to Metrology (Scientific, Industrial or Legal). It has been fulfilling an important need of Metrologists and particularly of quality practitioners by publishing exclusive articles on scientific, industrial and legal metrology. The journal publishes research communication or technical articles of current interest in measurement science; original work, tutorial or survey papers in any metrology related area; reviews and analytical studies in metrology; case studies on reliability, uncertainty in measurements; and reports and results of intercomparison and proficiency testing.