| Mobility of heavy metals from tailings to stream waters in local zinc smelting activities contaminated site |
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| 作者姓名： | Taoze LIU Yuangen YANG Bangyu LIU Xiangyang BI Feili LI |
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| 作者单位： | [1]State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550002, China [2]Graduate School of the Chinese Academy of Sciences, Beijing 100039, China |
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| 摘 要： | It has been found that stream waters were severely contaminated with wastes from a long-time smelting factory in Hezhang, Guizhou, China. The main sources of contamination are the smelting wastes stored in the open air and abandoned in the vicinity of stream. A method of lead isotope was adopted in order to identify relations between tailings and water contamination. Representative samples of tailings and stream sediments were collected. Mineralogical characterizations were conducted using XRD and TEM/SEM, while acid digestion was carried out for determining metal contents. BCR sequential leaching tests were performed in order to assess metal mobility. The tremendous ‘actual＇ and ‘potential＇ mobility of heavy metals indicates that the smelting waste and stream sediments present a considerable threat to the environment. Besides the chemical remobilization of heavy metals from the sediments and the reworking of riverbed sediments act as a secondary source of pollution. Also groundwater and stream water were sampled in specific locations and were measured.
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| 关 键 词： | 熔炼工艺 重金属 尾矿 沉积物 水性质 水体污染 |
Mobility of heavy metals from tailings to stream waters in local zinc smelting activities contaminated site |
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| Taoze LIU Yuangen YANG Bangyu LIU Xiangyang BI Feili LI.Mobility of heavy metals from tailings to stream waters in local zinc smelting activities contaminated site[J].Chinese Journal of Geochemistry,2006,25(B08):41-42. |
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| Abstract: | |
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| Keywords: | local smelting heavy metal tailings sediment water characterization |
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