Groundwater environmental risk assessment of abandoned coal mine in each phase of the mine life cycle: a case study of H
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RESEARCH ARTICLE
Groundwater environmental risk assessment of abandoned coal mine in each phase of the mine life cycle: a case study of Hongshan coal mine, North China Haibo Feng 1 & Jianwei Zhou 1 Danhui Su 1
&
Bo Chai 1 & Aiguo Zhou 1 & Jianzhong Li 1,2 & Henghua Zhu 1,3 & Hongnian Chen 1,4 &
Received: 5 April 2020 / Accepted: 7 July 2020 # Springer-Verlag GmbH Germany, part of Springer Nature 2020
Abstract Human activities during each phase of coal mine life cycle greatly affect groundwater environment. The groundwater environment destruction is not just only the destruction of underground structure but also the social problems caused by available groundwater resources reduction, as well as the environmental problems affecting ecosystem and human health. Moreover, the groundwater environmental risk of coal mining is complex, dynamic, and long-term. Therefore, a framework and quantitative method for groundwater environmental risk analysis at different phases of the mine life cycle was presented, which is composed of the groundwater system destruction risk (GSDR) and social-economic-ecological vulnerability (SEEV) assessment. The framework was applied in Hongshan abandoned coal mine, North China. Based on the aquifer structure destruction, groundwater flow field evolution, contamination, and social-economic influence analysis, 12 main controlling factors for the GSDR and 7 factors for the SEEV were determined and quantified separately. The results showed that the groundwater contamination of the Hongshan mine mainly occurred after closure, caused by the cross-strata pollution of mine water, which significantly reduced the groundwater available resources, which greatly affected local social-economy sustainable development and residents’ health. The Hongshan mine closure increased groundwater environmental risk, with the GSDR high-risk zone being 12.51 km2 larger than that during the mining phase and the SEEV was calculated at a high level. This framework promotes systematic integration of the groundwater environmental risk assessment in mine life cycle. Keywords Coal mine . Groundwater environmental risk assessment . Mine life cycle . Cross-strata pollution . Vulnerability analysis
Highlights 1. Groundwater aquifer structure destruction, flow field evolution, and contamination were studied. 2. A new framework for groundwater environmental risk assessment of coal mine life cycle was proposed. 3. Combining social, economic, and ecological vulnerability analysis in risk assessment. 4. Mine closure might increase groundwater environmental risk. Responsible Editor: Philippe Garrigues * Jianwei Zhou [email protected] 1
2
Department of National Spatial Ecological Rehabilitation, Ministry of Natural Resources of the People’s Republic of China, Beijing 100812, China
3
Shandong Institute of Geological Survey, Jinan 250013, Shandong, China
4
Shandong Lunan Institute of Geological Engineering Survey, Yanzhou 272100, Shandong, China
School of Environmental Studies, China University of Geosciences, Wuhan 430074, Hu
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