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de Souza Pereira W, Kelecom A, Lopes JM, do Carmo AS, Padilha Filho LG, Campelo ELC, Potenciano NREP, Schenberg ACG, da Silva LF, da Silva AX. Environmental impact assessment due to the intake of uranium contained in surface waters in a semi-arid region in Brazil. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:27085-27098. [PMID: 38503952 DOI: 10.1007/s11356-024-32671-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Accepted: 02/23/2024] [Indexed: 03/21/2024]
Abstract
In Santa Quitéria City, part of the population uses surface water for potation. These waters do not undergo any treatment before consumption. As the region has a deposit of uranium, assessing water quality becomes important. In the present study, the uranium activity concentration (AC) in becquerels per liter was determined in water samples from six points. Univariate statistics showed differences between the soluble and the particulate fraction (soluble AC > particulate AC). The particulate fraction showed no variation in AC among the six points. On the other hand, the soluble fraction and the total fraction presented different ACs between them. The multivariate statistics allowed to separate the soluble from the particulate fraction of the points. The same tools applied to the total fraction made it possible to differentiate the sampling points, grouping them ((#1, #2); (#3, #4), and (#5, #6)). The maximum mean value of AC found was 0.177 Bq∙L-1, corresponding to 25% of the chemical toxicity limit (0.72 Bq∙L-1). The maximum mean dose rate, 2.25 µSv∙year-1, is lower than the considered negligible dose rate (> 10 µSv∙year-1). The excess lifetime cancer risk was 10-6, two orders of magnitude smaller than the threshold considered for taking action. The assessment parameters used in this work indicate that the risk due to the uranium intake by the local population is negligible.
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Affiliation(s)
- Wagner de Souza Pereira
- Programa de Engenharia Nuclear, Universidade Federal Do Rio de Janeiro (COPPE/UFRJ), Rio de Janeiro, 21941-914, Brazil.
- Indústrias Nucleares Do Brasil S/A - INB, 27.555-000, Resende, RJ, Brazil.
| | - Alphonse Kelecom
- Instituto de Biologia, Universidade Federal Fluminense - UFF, 24.001-970, Niterói, RJ, Brazil
| | - José Marques Lopes
- Departamento de Física da Terra E Do Meio Ambiente, Universidade Federal da Bahia (UFBA), Salvador, 40170-290, Brazil
- Programa de Pós-Graduação Em Geoquímica (POSPETRO), Universidade Federal da Bahia - UFBA, Salvador, 40.170-110, Brazil
| | - Alessander Sá do Carmo
- Coordenação de Matéria Condensada, Física Aplicada E Nanociência - Setor de Criogenia, Centro Brasileiro de Pesquisas Físicas (CBPF), 22.290-180, Rio de Janeiro, RJ, Brazil
| | | | | | | | | | - Lucas Faria da Silva
- Escola de Química, Universidade Federal Do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Ademir Xavier da Silva
- Programa de Engenharia Nuclear, Universidade Federal Do Rio de Janeiro (COPPE/UFRJ), Rio de Janeiro, 21941-914, Brazil
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Li M, Xu W, Wu X, Zhang X, Fang Q, Cai T, Yang J, Hua Y. Enhanced mechanism of calcium towards uranium incorporation and stability in magnetite during electromineralization. JOURNAL OF HAZARDOUS MATERIALS 2023; 457:131641. [PMID: 37329595 DOI: 10.1016/j.jhazmat.2023.131641] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Revised: 05/05/2023] [Accepted: 05/13/2023] [Indexed: 06/19/2023]
Abstract
Doping uranium into a room-temperature stable Fe3O4 lattice structure effectively reduces its migration. However, the synergistic or competitive effects of coexisting ions in an aqueous solution directly affect the uranium mineralization efficiency and the structural stability of uranium-bearing Fe3O4. The effects of calcium, carbonate, and phosphate on uranium electromineralization were investigated via batch experiments and theoretical calculations. Calcium incorporated into the Fe3O4 lattice increased the level and stability of doped uranium in Fe3O4. Uranium and calcium occupied the octahedral and tetrahedral sites of Fe3O4, respectively; the formation energy was only -10.23 eV due to strong hybridization effects between Fe1s, U4f, O2p, and Ca3d orbitals. Compared to the uranium-doped Fe3O4, uranium leaching ratios decreased by 19.2 % and 48.9 % under strongly acidic and alkaline conditions after 120 days. However, high concentrations of phosphate inhibited Fe3O4 crystallization. These results should provide new avenues for the development of multi-metal co-doping technologies and mineralization optimization to treat uranium-containing complex wastewater.
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Affiliation(s)
- Mi Li
- School of Resource & Environment and Safety Engineering, University of South China, Hengyang 421001, China
| | - Wanqin Xu
- School of Resource & Environment and Safety Engineering, University of South China, Hengyang 421001, China
| | - Xiaoyan Wu
- School of Resource & Environment and Safety Engineering, University of South China, Hengyang 421001, China
| | - Xiaowen Zhang
- Hengyang Key Laboratory of Soil Pollution Control and Remediation, University of South China, Hengyang 421001, China
| | - Qi Fang
- School of Resource & Environment and Safety Engineering, University of South China, Hengyang 421001, China
| | - Tao Cai
- School of Resource & Environment and Safety Engineering, University of South China, Hengyang 421001, China
| | - Jianping Yang
- School of Resource & Environment and Safety Engineering, University of South China, Hengyang 421001, China; State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China
| | - Yilong Hua
- School of Resource & Environment and Safety Engineering, University of South China, Hengyang 421001, China; State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China.
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Evaluation of uranium contamination of Raipur district of Chhattisgarh: GIS assisted hydrogeochemical study of underground water. J INDIAN CHEM SOC 2022. [DOI: 10.1016/j.jics.2022.100633] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Uranium: occurrence, distribution across India and its potential health effects. J Radioanal Nucl Chem 2022. [DOI: 10.1007/s10967-022-08373-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Shalumon C, Sanu K, Thomas JR, Aravind UK, Radhakrishnan S, Sahoo S, Jha S, Aravindakumar C. Analysis of uranium and other water quality parameters in drinking water sources of 5 districts of Kerala in southern India and potability estimation using water quality indexing method. HYDRORESEARCH 2021. [DOI: 10.1016/j.hydres.2021.04.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Spatial distribution of uranium and chemo-radiological assessment in Hamirpur district, Himachal Pradesh, India. J Radioanal Nucl Chem 2020. [DOI: 10.1007/s10967-020-07088-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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