ISOTOPIC COMPOSITION AND POTENTIAL SOURCES OF SULFATE IN TWO WATER SUPPLY RESERVOIRS OF THE GUIYANG CITY, SOUTHWESTERN CHINA

	ISOTOPIC COMPOSITION AND POTENTIAL SOURCES OF SULFATE IN TWO WATER SUPPLY RESERVOIRS OF THE GUIYANG CITY, SOUTHWESTERN CHINA
	Wang, ZL; Yang, X; Bai, L
	2012
发表期刊	FRESENIUS ENVIRONMENTAL BULLETIN
卷号	20 期号:11A 页码:2984-2991
摘要	Sulfur isotopic composition of dissolved SO(4)(2-) in waters from the Hongfeng and Aha reservoirs and their inflowing tributaries in the Guizhou Province, southwestern China were investigated. The results show that delta(34)S values of SO(4)(2-) range from -6.07 +/- 0.10 parts per thousand to -7.8 +/- 0.01 parts per thousand, with the average SO(4)(2-) concentration of about 0.65 mM/L in the Hongfeng reservoir water but range from -10.00 +/- 0.08 parts per thousand to -10.53 +/- 0.05 parts per thousand, with the average SO(4)(2-) concentration of about 3 mM/L in the Aha reservoir water. delta(34)s values of SO42- in the river water samples from the inflowing tributaries also show relatively low values (-2.34 +/- 0.01 parts per thousand to -11.88 +/- 0.06 parts per thousand) compared to most of river waters of the world. According to the sulfur isotopic compositions and SO(4)(2-) concentrations in the studied reservoir and river waters, three potential sources of dissolved SO(4)(2-), including coal-mining, acid deposition and oxidation of sulfide were identified. Within these S sources, coal mining is the major source of SO(4)(2-) in surface waters of the studied drainage basins. The estimation for the relative contributions of the potential sources indicate that about 80-90% of the sulfate in the Aha reservoir and its inflowing river water and about 60-70% in the Hongfeng reservoir and its inflowing river water are derived from coal strata via the coal mining activities. Acid rainwater and oxidation of sulfide have only limited contributions.
关键词	Sulfur-isotope Bacterial Reduction Reducing Bacteria Guizhou Province Oxygen Isotopes Fractionation Geochemistry Oxidation Carbonate Model
学科领域	环境地球化学
收录类别	SCI
语种	英语
文献类型	期刊论文
条目标识符	http://ir.gyig.ac.cn/handle/352002/4871
专题	环境地球化学国家重点实验室_环境地球化学国家重点实验室_期刊论文环境地球化学国家重点实验室
推荐引用方式 GB/T 7714	Wang, ZL,Yang, X,Bai, L. ISOTOPIC COMPOSITION AND POTENTIAL SOURCES OF SULFATE IN TWO WATER SUPPLY RESERVOIRS OF THE GUIYANG CITY, SOUTHWESTERN CHINA[J]. FRESENIUS ENVIRONMENTAL BULLETIN,2012,20(11A):2984-2991.
APA	Wang, ZL,Yang, X,&Bai, L.(2012).ISOTOPIC COMPOSITION AND POTENTIAL SOURCES OF SULFATE IN TWO WATER SUPPLY RESERVOIRS OF THE GUIYANG CITY, SOUTHWESTERN CHINA.FRESENIUS ENVIRONMENTAL BULLETIN,20(11A),2984-2991.
MLA	Wang, ZL,et al."ISOTOPIC COMPOSITION AND POTENTIAL SOURCES OF SULFATE IN TWO WATER SUPPLY RESERVOIRS OF THE GUIYANG CITY, SOUTHWESTERN CHINA".FRESENIUS ENVIRONMENTAL BULLETIN 20.11A(2012):2984-2991.