干旱区生态环境知识资源中心(Arid): Geochemical controls on the enrichment of fluoride in the mine water of the Shendong mining area, China

Arid

DOI	10.1016/j.chemosphere.2021.131388
	Geochemical controls on the enrichment of fluoride in the mine water of the Shendong mining area, China
	Zhang, Zheng; Li, Guoqing; Su, Xianbo; Zhuang, Xinguo; Wang, Lei; Fu, Haijiao; Li, Lin
通讯作者	Li, GQ (corresponding author), State Key Lab Water Resource Protect & Utilizat C, Beijing 102200, Peoples R China. ; Su, XB (corresponding author), China Univ Geosci, Sch Earth Resources, Wuhan 430074, Peoples R China.
来源期刊	CHEMOSPHERE
ISSN	0045-6535
EISSN	1879-1298
出版年	2021
卷号	284
英文摘要	Underground coal mining produces large amounts of mine water annually in the Shendong mining area of China. Due to the severe scarcity of water resources, mine water is extensively used for productive, domestic, and ecological demands. However, mine water exhibits high fluoride levels. For water-use security, reduction of fluoride exposure and environmental protection, knowledge of sources and geochemical controls of fluoride enrichment in mine water is required. The results showed that F- concentrations of mine waters vary from 0.05 to 11.65 mg/L, with a mean value of 1.96 mg/L, and 51% of the mine waters contain F- concentrations exceeding the Chinese drinking water standard (1 mg/L). The overall mine water quality is influenced by cation exchange, mineral dissolution, pyrite oxidation, silicate weathering and so on. The high-fluoride mine waters are all associated with Na-type, with a remarkable cation composition feature of higher Na+ and lower Ca2+ and Mg2+ concentrations. Overall, the high-fluoride mine waters are well-matched with the water environment with higher pH, TDS, and EC levels. PCA reveals that the geochemical controls on the enrichment of F- in mine waters include dissolution of fluoride-bearing minerals and F--OH- ion exchange; the former process is mainly caused by the decrease in Ca2+ concentrations resulting from Na + -Ca2+ cation exchange and mineral precipitation, and the latter process benefits from a highly alkaline water environment, facilitating the substitution of OH- in the mine water for F- within or absorbed on the minerals. Evaporation also controls F- enrichment in local areas.
英文关键词	Fluoride Mine water Geochemistry Shendong mining area Geochemical controls
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000703679900004
WOS关键词	POWDER RIVER-BASIN ; DRINKING-WATER ; ISOTOPIC EVIDENCE ; GRANITIC AQUIFER ; COALBED METHANE ; THAR DESERT ; GROUNDWATER ; DISTRICT ; CONTAMINATION ; ENVIRONMENT
WOS类目	Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/362849
作者单位	[Zhang, Zheng; Li, Guoqing] State Key Lab Water Resource Protect & Utilizat C, Beijing 102200, Peoples R China; [Zhang, Zheng; Li, Guoqing; Su, Xianbo; Zhuang, Xinguo; Wang, Lei; Fu, Haijiao; Li, Lin] China Univ Geosci, Sch Earth Resources, Wuhan 430074, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Zheng,Li, Guoqing,Su, Xianbo,et al. Geochemical controls on the enrichment of fluoride in the mine water of the Shendong mining area, China[J],2021,284.
APA	Zhang, Zheng.,Li, Guoqing.,Su, Xianbo.,Zhuang, Xinguo.,Wang, Lei.,...&Li, Lin.(2021).Geochemical controls on the enrichment of fluoride in the mine water of the Shendong mining area, China.CHEMOSPHERE,284.
MLA	Zhang, Zheng,et al."Geochemical controls on the enrichment of fluoride in the mine water of the Shendong mining area, China".CHEMOSPHERE 284(2021).