The geochemical stability of typical arsenic-bearing sinter in the Tibetan plateau: Implications from quantitative mineralogy
文献类型：期刊论文
| 作者 | Wen, Qiqian1,2; Yang, Linsheng1,2; Dai, Weijie1,2; Yu, Jiangping1; Wei, Binggan1,3; Yin, Shuhui1,2 |
| 刊名 | SCIENCE OF THE TOTAL ENVIRONMENT
 |
| 出版日期 | 2023-12-15 |
| 卷号 | 904页码:11 |
| ISSN号 | 0048-9697 |
| 关键词 | Quantitative analysis of As Leaching test Sinter in geothermal areas Mineral composition |
| DOI | 10.1016/j.scitotenv.2023.166862 |
| 通讯作者 | Wei, Binggan(weibg@igsnrr.ac.cn) |
| 英文摘要 | High-arsenic (As) sinter deposited from geothermal water is a potentially overlooked hazardous matrix and there remain substantial gaps in our comprehension of the stability of As sequestered within it. In this study, qualitative and quantitative analysis of the mineralogy of As-bearing sinter was conducted by Mineral Liberation Analyzer (MLA) in geothermal areas of the Tibetan Plateau to reveal the geochemical stability of As. Our results indicated that the contents of As in sinter were 3 orders of magnitude higher than the local soil. The dominant host minerals of As were calcite (40.9 %), thenardite (22.5 %), calcium silicate (13.0 %), and halite (8.1 %). Additionally, it was found that a relatively higher As bioavailability was extracted by ethylene diamine tetraacetic acid (EDTA), with a leaching rate of 41.2 %. Notably, the X-ray diffraction (XRD) showed that the thenardite and halite were decomposed after the leaching. The combination of mineralogy and geochemistry data suggested that calcite and calcium silicate were a crucial mechanism for As retention in sinter, while the dissolution of saline minerals (e.g., thenardite, halite, and calcium chloride) served as the primary sources for As release. This finding unveils the potential risks and mechanisms associated with high-As sinter, providing scientific guidance for risk management of sinter. |
| WOS关键词 | CALCITE ; PH ; ELEMENTS ; CONTAMINATION ; SPECIATION ; BORON ; SOIL |
| 资助项目 | Second Tibetan Plateau Scientific Expedition and Research Program (STEP)[2019QZKK0607] ; Key R & D Projects in Tibet[XZ202201ZY0029G] ; National Natural Science Foundation of China[41977400] ; Central Government Guides Local Science and Technology Development Program[XZ202201YD0014C] |
| WOS研究方向 | Environmental Sciences & Ecology |
| 语种 | 英语 |
| 出版者 | ELSEVIER |
| WOS记录号 | WOS:001080422100001 |
| 资助机构 | Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Key R & D Projects in Tibet ; National Natural Science Foundation of China ; Central Government Guides Local Science and Technology Development Program |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/198671]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Wei, Binggan |
| 作者单位 | 1.Chinese Acad Sci, Key Lab Land Surface Pattern & Simulat, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China 2.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100190, Peoples R China 3.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, 11 Datun Rd, Beijing 100101, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wen, Qiqian,Yang, Linsheng,Dai, Weijie,et al. The geochemical stability of typical arsenic-bearing sinter in the Tibetan plateau: Implications from quantitative mineralogy[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2023,904:11. |
| APA | Wen, Qiqian,Yang, Linsheng,Dai, Weijie,Yu, Jiangping,Wei, Binggan,&Yin, Shuhui.(2023).The geochemical stability of typical arsenic-bearing sinter in the Tibetan plateau: Implications from quantitative mineralogy.SCIENCE OF THE TOTAL ENVIRONMENT,904,11. |
| MLA | Wen, Qiqian,et al."The geochemical stability of typical arsenic-bearing sinter in the Tibetan plateau: Implications from quantitative mineralogy".SCIENCE OF THE TOTAL ENVIRONMENT 904(2023):11. |
入库方式： OAI收割
来源：地理科学与资源研究所
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