Assessing geochemical and natural radioactivity impacts of Hamadat phosphatic mine through radiological indices
Электронный научный архив УРФУ
Информация об архиве | Просмотр оригинала| Поле | Значение | |
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Assessing geochemical and natural radioactivity impacts of Hamadat phosphatic mine through radiological indices
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| Автор |
Fathy, D.
Zakaly, H. M. H. Lasheen, E. S. R. Elsaman, R. Alarifi, S. S. Sami, M. Awad, H. A. Ene, A. |
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| Тематика |
APATITE
PHOSPHATE POTASSIUM 40 RADIUM 226 THORIUM 232 URANIUM FERRIC ION PHOSPHORITE POTASSIUM RADIUM RADIUM-226 THORIUM THORIUM-232 ARTICLE EGYPT GAMMA SPECTROMETRY GEOCHEMICAL ANALYSIS MINING NATURAL RADIOACTIVITY RADIATION HAZARD PROCEDURES RADIOACTIVITY FERRIC COMPOUNDS POTASSIUM RADIOISOTOPES RADIATION MONITORING RADIOACTIVITY RADIUM THORIUM |
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| Описание |
The utilization of phosphorite deposits as an industrial resource is of paramount importance, and its sustainability largely depends on ensuring safe and responsible practices. This study aims to evaluate the suitability of phosphorite deposits for industrial applications such as the production of phosphoric acid and phosphatic fertilizers. To achieve this goal, the study meticulously examines the geochemical characteristics of the deposits, investigates the distribution of natural Radioactivity within them, and assesses the potential radiological risk associated with their use. The phosphorites are massive and collected from different beds within the Duwi Formation at the Hamadat mining area. They are grain-supported and composed of phosphatic pellets, bioclasts (bones), non-phosphatic minerals, and cement. Geochemically, phosphorites contain high concentrations of P2O5 (23.59-28.36 wt.%) and CaO (40.85-44.35 wt.%), with low amounts of Al2O3 (0.23-0.51 wt.%), TiO2 (0.01-0.03 wt.%), Fe2O3 (1.14-2.28 wt.%), Na2O (0.37-1.19 wt.%), K2O (0.03-0.12 wt.%), and MnO (0.08- 0.18 wt.%), suggesting the low contribution of the detrital material during their deposition. Moreover, they belong to contain enhanced U concentration (55-128 ppm). They are also enriched with Sr, Ba, Cr, V, and Zn and depleted in Th, Zr, and Rb, which strongly supports the low detrital input during the formation of the Hamadat phosphorites. The high Radioactivity of the studied phosphorites is probably due to the widespread occurrence of phosphatic components (e.g., apatite) that accommodate U in high concentrations. Gamma spectrometry based on NaI (Tl) crystal 3×3 has been used to measure occurring radionuclides in the phosphorite samples. The results indicate that the radioactive concentrations' average values of 226Ra, 232Th, and 40K are 184.18±9.19, 125.82±6.29, and 63.82±3.19 Bq Kg-1 , respectively. Additionally, evaluations have been made of the radiological hazards. The calculated risk indicators exceeded the recommended national and world averages. The data obtained will serve as a reference for follow-up studies to evaluate the effectiveness of the Radioactivity of phosphatic materials collected from the Hamdat mine area. © 2023 Fathy et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
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| Дата |
2024-04-05T16:30:30Z
2024-04-05T16:30:30Z 2023 |
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| Тип |
Article
Journal article (info:eu-repo/semantics/article) |info:eu-repo/semantics/publishedVersion |
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| Идентификатор |
Fathy, D, Zakaly, HMH, Lasheen, ESR, Elsaman, R, Alarifi, SS, Sami, M, Awad, HA & Ene, A 2023, 'Assessing geochemical and natural radioactivity impacts of Hamadat phosphatic mine through radiological indices', PLoS ONE, Том. 18, № 8, e0287422. https://doi.org/10.1371/journal.pone.0287422
Fathy, D., Zakaly, H. M. H., Lasheen, E. S. R., Elsaman, R., Alarifi, S. S., Sami, M., Awad, H. A., & Ene, A. (2023). Assessing geochemical and natural radioactivity impacts of Hamadat phosphatic mine through radiological indices. PLoS ONE, 18(8), [e0287422]. https://doi.org/10.1371/journal.pone.0287422 1932-6203 Final All Open Access, Gold, Green https://www.scopus.com/inward/record.uri?eid=2-s2.0-85166518303&doi=10.1371%2fjournal.pone.0287422&partnerID=40&md5=574226b00568f98f15a27c7074d025a6 https://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0287422&type=printable http://elar.urfu.ru/handle/10995/130689 10.1371/journal.pone.0287422 85166518303 001043333000054 |
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| Язык |
en
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| Права |
Open access (info:eu-repo/semantics/openAccess)
cc-by https://creativecommons.org/licenses/by/4.0/ |
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| Формат |
application/pdf
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| Издатель |
Public Library of Science
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| Источник |
PLOS ONE
PLoS ONE |
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