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Yu, Ch., Xu, Sh., Gang, M., Zhou, L., Chen, G.. (1389). Molybdenum pollution and speciation in Nver River sediments impacted with Mo mining activities in western Liaoning, northeast China. , 5(1), 205-212. doi: 10.22059/ijer.2010.305
Ch. Yu; Sh. Xu; M. Gang; L. Zhou; G. Chen. "Molybdenum pollution and speciation in Nver River sediments impacted with Mo mining activities in western Liaoning, northeast China". , 5, 1, 1389, 205-212. doi: 10.22059/ijer.2010.305
Yu, Ch., Xu, Sh., Gang, M., Zhou, L., Chen, G.. (1389). 'Molybdenum pollution and speciation in Nver River sediments impacted with Mo mining activities in western Liaoning, northeast China', , 5(1), pp. 205-212. doi: 10.22059/ijer.2010.305
Yu, Ch., Xu, Sh., Gang, M., Zhou, L., Chen, G.. Molybdenum pollution and speciation in Nver River sediments impacted with Mo mining activities in western Liaoning, northeast China. , 1389; 5(1): 205-212. doi: 10.22059/ijer.2010.305

Molybdenum pollution and speciation in Nver River sediments impacted with Mo mining activities in western Liaoning, northeast China

International Journal of Environmental Research
مقاله 21، دوره 5، شماره 1، فروردین 2011، صفحه 205-212    اصل مقاله (181.42 K)
شناسه دیجیتال (DOI): 10.22059/ijer.2010.305
نویسندگان
Ch. Yu* 1؛ Sh. Xu2؛ M. Gang3؛ L. Zhou4؛ G. Chen4
1School of Chemical and Environmental Engineering, Liaoning University of Technology, Jinzhou 121001, China 2 School of Civil and Hydraulic Engineering, Dalian University of Technology, Dalian 116024, China
2School of Civil and Hydraulic Engineering, Dalian University of Technology, Dalian 116024, China
3College of Electrical Engineering, Liaoning University of Technology, Jinzhou 121001, China
4School of Chemical and Environmental Engineering, Liaoning University of Technology, Jinzhou 121001, China
چکیده
The concentrations and speciation of Mo, together with Fe, Cu, and Zn, in Nver River sediments impacted with Mo mining activities in western Liaoning, northeast China, were investigated withgeochemical method. Using the X-ray fluorescence and X-Ray diffraction, the characterizations of metals in tailings ponds deposited along the Nver River bank were analyzed. Analysis and comparison of the concentrations and speciation of heavy metals show that the maximum concentrations of Fe, Cu, Zn, and Mo detected in river sediments exceed corresponding reference values (S0, P0) by 6.3, 9.7, 16.1, and 494.0 times, respectively, and that of Mo exceeds the abundance of Mo in earth’s crust by 1127.9 times. High IPOLL showed that all of these heavy metals might pose an environmental risk. Bioavailable fractions of Fe, Cu, and Zn were not detected in both tailings ponds and sediments, but that of Mo presented in tailings pond and sediments are 16.15-18.73% and 18.61-59.07%, respectively. The alkaline condition in sediments and tailings ponds is a significant factor governing chemical speciation of heavy metals. This study indicates that Mo tailings ponds deposited along the bank may have a closely relationship with the high levels of these metals in sediments and Mo in sediments may pose a high risk to the local environment.
کلیدواژه‌ها
Molybdenum؛ Tailings؛ sediment؛ Geochemistry؛ Heavy Metal؛ IPOLL؛ Mobility
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