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首页> 外文期刊>International Journal of Energy and Power Engineering >Release Activity and Potential Ecological Risk Assessment of Heavy Metals in Coal Gangue of Hancheng, China
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Release Activity and Potential Ecological Risk Assessment of Heavy Metals in Coal Gangue of Hancheng, China

机译：韩城煤Coal石中重金属的释放活性及潜在的生态风险评估

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摘要

Focused on release activity of different weather degree gangue of Han Cheng, evaluate heavy metals potential release risks by Hakanson instrument. The results showed that the content of heavy metals were more than their background in unweathered gangue. The Sang shuping gangue were Cd，Cr and As, so did Cd, Pb, Cr, Cu, Ni and As in Xia yukou. Residue fraction were the main fraction of heavy metals in gangue. The release potential and activity of heavy metals decreased with the weather degree increasing. The release activity of unweathered and weathered one year of Sang shuping gangue from high to low were Cu, Pb, Ni, Cd, Cr, As and Cd, Pb, Cu, Ni, Cr, As respectively. The release activity of unweathered and weathered one year of Xia yukou gangue from high to low were Cu, Ni, Cr, Pb, Cd, As. The potential ecological risk of heavy metals were in slight degree, and the potential risk index of heavy metals decreased gradually with the increasing of weather degree. The potential risk index of heavy metals from high to low were Cd, Pb, Cu, Ni, As, Cr and Cd, Cu, Pb, Ni, Cr, As respectively.
机译：针对汉城不同程度的煤石的释放活动，通过Hakanson仪器评估重金属的潜在释放风险。结果表明，未风化煤石中重金属的含量高于其本底。桑树坪脉石脉中的Cd，Cr和As以及夏雨口的Cd，Pb，Cr，Cu，Ni和As也是如此。残留物是煤ue石中重金属的主要部分。随着天气程度的增加，重金属的释放潜力和活性降低。桑树平煤ue石未风化和风化一年的释放活性分别为Cu，Pb，Ni，Cd，Cr，As和Cd，Pb，Cu，Ni，Cr，As。夏雨口脉石未风化和风化一年的释放活性由高，低依次为铜，镍，铬，铅，镉，砷。重金属的潜在生态风险较小，随着天气程度的增加，重金属的潜在风险指数逐渐降低。重金属从高到低的潜在风险指数分别为Cd，Pb，Cu，Ni，As，Cr和Cd，Cu，Pb，Ni，Cr，As。

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