Morphological Distribution and Formation Mechanisms of Antimony in the Shallow Groundwater of the Xikuangshan Antimony Mine in Hunan, China
The century-old mining development and utilization of antimony (Sb) ore in Xikuangshan (XKS) mine, groundwater antimony pollution has attracted great attention. At present, the sources and geochemical behaviors of high Sb groundwater in this area have been widely recognized, but morphological distri...
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Frontiers Media S.A.
2022-07-01
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| Series: | Frontiers in Environmental Science |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fenvs.2022.950096/full |
| _version_ | 1811292204893732864 |
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| author | Ximeng Sun Yi Li Chao Liu Lu Zhang Ziyao Li Chunming Hao |
| author_facet | Ximeng Sun Yi Li Chao Liu Lu Zhang Ziyao Li Chunming Hao |
| author_sort | Ximeng Sun |
| collection | DOAJ |
| description | The century-old mining development and utilization of antimony (Sb) ore in Xikuangshan (XKS) mine, groundwater antimony pollution has attracted great attention. At present, the sources and geochemical behaviors of high Sb groundwater in this area have been widely recognized, but morphological distribution and formation mechanisms of Sb(V) and Sb(III) in shallow groundwater were still little known. Forty-three groundwater samples of Magunao aquifer (D3x4) were collected between June and September 2020 to determine morphological distribution and formation mechanisms of Sb valence state in the recharge area, runoff area and discharge area. The range of Sb content in the recharge area, runoff area, and discharge area of the D3x4 water was 3.300 × 10−3–7.982 mg/L, 1.760 × 10−2–17.326 mg/L and 1.230 × 10−2–16.773 mg/L, respectively. The D3x4 water is dominated by Sb(V), which form was Sb(OH)6−. The Sb(V) mainly comes from the oxidative dissolution of Sb2S3, the mining activities, and the leaching of arsenic alkali residues. The silicate mineral weathering, carbonate mineral dissolution, and ion exchange promote the dissolution of Sb2S3. At the same time, redox and competitive adsorption in the runoff area increase the Sb(V) content in the water environment. The results of this research provide an understanding of the mechanism of Sb pollution in shallow groundwater and will help in controlling water-environment pollution and securing water-resource in mining areas. |
| first_indexed | 2024-04-13T04:41:56Z |
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| id | doaj.art-da2521f9e3fd48b0b172e46d4a6fe376 |
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| issn | 2296-665X |
| language | English |
| last_indexed | 2024-04-13T04:41:56Z |
| publishDate | 2022-07-01 |
| publisher | Frontiers Media S.A. |
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| series | Frontiers in Environmental Science |
| spelling | doaj.art-da2521f9e3fd48b0b172e46d4a6fe3762022-12-22T03:01:58ZengFrontiers Media S.A.Frontiers in Environmental Science2296-665X2022-07-011010.3389/fenvs.2022.950096950096Morphological Distribution and Formation Mechanisms of Antimony in the Shallow Groundwater of the Xikuangshan Antimony Mine in Hunan, ChinaXimeng Sun0Yi Li1Chao Liu2Lu Zhang3Ziyao Li4Chunming Hao5North China Institute of Science and Technology, Hebei, ChinaHebei Geo-Environment Monitoring, Hebei, ChinaLiaoning Metallurgical Geological Exploration Research Institute Co., Ltd., Anshan, ChinaHebei Geo-Environment Monitoring, Hebei, ChinaHebei Geo-Environment Monitoring, Hebei, ChinaNorth China Institute of Science and Technology, Hebei, ChinaThe century-old mining development and utilization of antimony (Sb) ore in Xikuangshan (XKS) mine, groundwater antimony pollution has attracted great attention. At present, the sources and geochemical behaviors of high Sb groundwater in this area have been widely recognized, but morphological distribution and formation mechanisms of Sb(V) and Sb(III) in shallow groundwater were still little known. Forty-three groundwater samples of Magunao aquifer (D3x4) were collected between June and September 2020 to determine morphological distribution and formation mechanisms of Sb valence state in the recharge area, runoff area and discharge area. The range of Sb content in the recharge area, runoff area, and discharge area of the D3x4 water was 3.300 × 10−3–7.982 mg/L, 1.760 × 10−2–17.326 mg/L and 1.230 × 10−2–16.773 mg/L, respectively. The D3x4 water is dominated by Sb(V), which form was Sb(OH)6−. The Sb(V) mainly comes from the oxidative dissolution of Sb2S3, the mining activities, and the leaching of arsenic alkali residues. The silicate mineral weathering, carbonate mineral dissolution, and ion exchange promote the dissolution of Sb2S3. At the same time, redox and competitive adsorption in the runoff area increase the Sb(V) content in the water environment. The results of this research provide an understanding of the mechanism of Sb pollution in shallow groundwater and will help in controlling water-environment pollution and securing water-resource in mining areas.https://www.frontiersin.org/articles/10.3389/fenvs.2022.950096/fullmorphological characteristicsformation mechanismvalence stateantimonyshallow groundwater |
| spellingShingle | Ximeng Sun Yi Li Chao Liu Lu Zhang Ziyao Li Chunming Hao Morphological Distribution and Formation Mechanisms of Antimony in the Shallow Groundwater of the Xikuangshan Antimony Mine in Hunan, China Frontiers in Environmental Science morphological characteristics formation mechanism valence state antimony shallow groundwater |
| title | Morphological Distribution and Formation Mechanisms of Antimony in the Shallow Groundwater of the Xikuangshan Antimony Mine in Hunan, China |
| title_full | Morphological Distribution and Formation Mechanisms of Antimony in the Shallow Groundwater of the Xikuangshan Antimony Mine in Hunan, China |
| title_fullStr | Morphological Distribution and Formation Mechanisms of Antimony in the Shallow Groundwater of the Xikuangshan Antimony Mine in Hunan, China |
| title_full_unstemmed | Morphological Distribution and Formation Mechanisms of Antimony in the Shallow Groundwater of the Xikuangshan Antimony Mine in Hunan, China |
| title_short | Morphological Distribution and Formation Mechanisms of Antimony in the Shallow Groundwater of the Xikuangshan Antimony Mine in Hunan, China |
| title_sort | morphological distribution and formation mechanisms of antimony in the shallow groundwater of the xikuangshan antimony mine in hunan china |
| topic | morphological characteristics formation mechanism valence state antimony shallow groundwater |
| url | https://www.frontiersin.org/articles/10.3389/fenvs.2022.950096/full |
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