| Geochemical characteristics of acid mine drainage and sediments from coal mines, Shanxi Province, China |
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| 作者姓名： | Hongfu SUN Fenghua ZHAO |
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| 作者单位： | Department of Resource and Earth Sciences, China University of Mining and Technology, Beijing 100083, China |
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| 摘 要： | In this study, geochemical characteristics of acid mine drainage （AMD） and its sediments from the Malan and Sitai coalmines, Shanxi Province, China, were investigated. Many analytical approaches such as IC, ICP-MS, XRD, XRF, and modeling calculation of hydrogeochemistry using PHREEQCI software were employed. The AMD is characterized by higher concentrations of iron and sulfate, a low pH, and elevated concentrations of a wide variety of heavy metals. The results of modeling calculation by PHREEQCI software demonstrate the metals in AMD are present mainly as Me^n＋ and MeSO4^n-2 species. The sediments of AMD are composed mainly of iron-beating minerals such as goethite and schwertmannite, which are controlled by pH, Fe and SO4^2- concentrations. The schwertmannite mineral has been found for the first time in China.
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| 关 键 词： | 矿山酸性排水 沉淀物 重金属 煤矿 |
Geochemical characteristics of acid mine drainage and sediments from coal mines, Shanxi Province, China |
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| Hongfu SUN Fenghua ZHAO.Geochemical characteristics of acid mine drainage and sediments from coal mines, Shanxi Province, China[J].Chinese Journal of Geochemistry,2006,25(B08):26-27. |
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| Abstract: | |
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| Keywords: | acid mine drainage sediment schwertmannite heavy metal PHREEQCI |
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