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[1]LIANG Haoqian,FENG Qiyan,ZHOU Lai,et al.Influence of Water of Abandoned Coal Mine on Water Environment of Yudong River Basin[J].Research of Soil and Water Conservation,2019,26(06):382-388.

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Influence of Water of Abandoned Coal Mine on Water Environment of Yudong River Basin

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 26 Number of periods: 2019 06 Page number: 382-388 Column: Public date: 2019-10-17

Title:: Influence of Water of Abandoned Coal Mine on Water Environment of Yudong River Basin

Author(s):: LIANG Haoqian¹, FENG Qiyan², ZHOU Lai¹, REN Hujun³, LI Xibin³; 1. School of Environment Science and Spatial Informatics, China University of Mining and Technology, Xuzhou, Jiangsu 221116, China;
2. Low Carbon Energy Institute, China University of Mining and Technology, Xuzhou, Jiangsu 221116, China;
3. Bureau of Hydrogeology, China National of Coal Geology, Handan, Hebei 056004, China

Keywords:: Yudong River Basin; mine water; water environment; pollution assessment

CLC:: X52;X53

DOI:: -

Abstract:: In order to understand the impact of the mine drainage in the abandoned mine of the Yudong River Basin on the water environment, the pH value, the concentrations of SO₄^2- and heavy metals (Fe, Mn, Cu, Cd, Pb, Zn) of the river water and mine water, and the contents of heavy metals (Fe, Mn, Cu, Cd, Pb, Zn) in the sediment were determined. The results show that the mine water is acidic, the concentrations of Fe, Mn and Zn exceed the local mine water discharge standards; the pH value, concentrations of SO₄^2-, Fe, Mn and Cd in river water in the Yudong River Basin exceed the relevant standard limits of surface water sources; the water quality of the upstream river of the Yudong River Basin and the Chongan River are good, the results from the comprehensive pollution index method indicate that the water is not polluted; due to the discharge of mine water, the pH value, concentrations of SO₄^2-, Fe and Mn of the water of downstream river obviously exceed the standard limit of surface water sources, and the evaluation result indicates that water of downstream river is severely polluted. Correlation analysis and principal component analysis show that river water is mainly affected by mine water and natural factors. The contents of Cu and Mn in the sediments do not exceed the soil background values of Guizhou Province, while the contents of Fe, Cd, Pb and Zn exceed the standard. The evaluation results from the cumulative accumulation index method show that the river sediment in the Yudong River Basin is slightly polluted by Cd, Pb and Fe, the sediment of the mine drain is moderately or strongly polluted by Fe.

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