Thiosulphate assisted phytoextraction of mercury contaminated soils at the Wanshan Mercury Mining District, Southwest China
DOI:
https://doi.org/10.15243/jdmlm.2013.011.001Keywords:
Hg mine, soil, Hg fractionation, phytoextraction, thiosulphateAbstract
Wanshan, known as the “Mercury Capital†of China, is located in the Southwest of China. Due to the extensive mining and smelting works in the Wanshan area, the local ecosystem has been serious contaminated with mercury. In the present study, a number of soil samples were taken from the Wanshan mercury mining area and the mercury fractionations in soils were analyzed using sequential extraction procedure technique. The obtained results showed that the dominate mercury fractions (represent 95% of total mercury) were residual and organic bound mercury. A field trial was conducted in a mercury polluted farmland at the Wanshan mercury mine. Four plant species Brassica juncea Czern. et Coss.var. ASKYC (ASKYC), Brassica juncea Czern. et Coss.var.DPDH (DPDH), Brassica juncea Czern. et Coss.var.CHBD(CHBD), Brassica juncea Czern. et Coss.var.LDZY (LDZY) were tested their ability to extract mercury from soil with thiosulphate amendment. The results indicated that the mercury concentration in the roots and shoots of the four plants were significantly increased with thiosulphate treatment. The mercury phytoextraction yield of ASKYC, DPDH, CHBD and LDZY were 92, 526, 294 and 129 g/ha, respectively.References
Feng, X. and Qiu, G. 2008. Mercury pollution in Guizhou, Southwestern China. An overview. Science of The Total Environment 400: 227-237.
GarcÃa-Sánchez, A., Murciego, A., Alvarez-Ayuso, E., Regina, I.S. and RodrÃguez-González, M.A. 2009. Mercury in soils and plants in an abandoned cinnabar mining area (SW Spain). Journal of Hazardous Materials 168: 1319-1324.
Issaro, N., Abi-Ghanem, C. and Bermond, A. 2009. Fractionation studies of mercury in soils and sediments: A review of the chemical reagents used for mercury extraction. Analytica Chimica Acta 631: 1-12.
Jeyakumar, P., Loganathan, P., Sivakumaran, S., Anderson, C.W.N. and Mclaren, R.G. 2008. Copper and zinc spiking of biosolids: effect of incubation period on metal fractionation and speciation and microbial activity. Environmental Chemistry 5: 347-354.
Li, P., Feng, X.B., Qiu, G.L., Shang, L.H. and Li, Z.G. 2009. Mercury pollution in Asia: A review of the contaminated sites. Journal of Hazardous Materials 168: 591-601.
Moreno, F., Anderson, C., Stewart, R., Robinson, B., Nomura, R., Ghomshei, M. and Meech, J.A. 2005. Effect of Thioligands on Plant-Hg Accumulation and Volatilisation from Mercury-contaminated Mine Tailings. Plant and Soil 275: 233-246.
Moreno, F.N., Anderson, C.W.N., Stewart, R.B. and Robinson, B.H. 2004. Phytoremediation of Mercury-Contaminated Mine Tailings by Induced Plant-Mercury Accumulation. Environmental Practice 6: 165-175.
Neculita, C.M., Zagury, G.J. and Deschenes, L. 2005. Mercury Speciation in Highly Contaminated Soils from Chlor-Alkali Plants Using Chemical Extractions. Journal of Environmental Quality 34: 255-262.
Qiu, G., Feng, X., Wang, S. and Shang, L. 2005. Mercury and methylmercury in riparian soil, sediments, mine-waste calcines, and moss from abandoned Hg mines in east Guizhou province, southwestern China. Applied Geochemistry 20: 627-638.
Rodriguez, L., Rincon, J., Asencio, I. and Rodriguez-Castellanos, L. 2007. Capability of Selected Crop Plants for Shoot Mercury Accumulation from Polluted Soils: Phytoremediation Perspectives. International Journal of Phytoremediation 9: 1-13.
Smolinska, B. and Cedzynska, K. 2007. EDTA and urease effects on Hg accumulation by Lepidium sativum. Chemosphere 69: 1388-1395.
Tessier, A., Campbell, P.G.C. and Bisson, M. 1979. Sequential extraction procedure for the speciation of particulate trace metals. Analytical Chemistry 51: 44-851.
Wang, Y. and Greger, M. 2006. Use of iodide to enhance the phytoextraction of mercury-contaminated soil. Science of The Total Environment 368: 30-39.
Xia, K., Skyllberg, U., Bleam, W., Bloom, P., Nater, E. and Helmke, P. 1999. X-ray absorption spectroscopic evidence for the complexation of Hg (II) by reduced sulfur in soil humic substances. Environmental science & Technology 33: 257-261.
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