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Environmental and Safety Risks Related to Methane Emissions in Underground Coal Mine Closure Processes

Author

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  • Adam Duda

    (Department of Risk Assessment and Industrial Safety, Central Mining Institute, 40-166 Katowice, Poland)

  • Gregorio Fidalgo Valverde

    (School of Mining, Energy and Materials Engineering, University of Oviedo, 33004 Oviedo, Spain)

Abstract

The closure process of underground coal mines entails specific risks which require a careful liquidation methodology, including the implementation of relevant risk mitigation procedures to identify the key hazards to the environment and humans. As gas represents one of the major risks, it needs to be taken into consideration in the liquidation process. Given its adverse effect on the environment, methane, a greenhouse gas, requires particular attention and may also reach dangerous concentrations in the ground floor areas and basements of buildings as well as in areas where mine closure works are conducted, leading to intoxication, asphyxia or explosions. This paper presents a risk analysis of the methane hazard occurring at the final stage of the closure process of a Polish underground mine. It applies a methane emission model created jointly by the National Institute for the Environment and Industrial Hazards (INERIS) in France and the Central Mining Institute (GIG) in Poland. The analyses and measurements carried out for this paper were conducted within the framework of the Management of Environmental Risks during and after Mine Closure (MERIDA) project. The subject of the study included: the flooding process and how it affects the scale of gas emission from goafs, changes in methane concentration, and changes in the volume of voids.

Suggested Citation

  • Adam Duda & Gregorio Fidalgo Valverde, 2020. "Environmental and Safety Risks Related to Methane Emissions in Underground Coal Mine Closure Processes," Energies, MDPI, vol. 13(23), pages 1-16, November.
    • Handle: RePEc:gam:jeners:v:13:y:2020:i:23:p:6312-:d:453747
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    References listed on IDEAS

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    1. Christophe Didier, 2009. "Postmining Management in France: Situation and Perspectives," Risk Analysis, John Wiley & Sons, vol. 29(10), pages 1347-1354, October.
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    Citations

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    Cited by:

    1. Gregorio Fidalgo Valverde & Adam Duda & Francisco Javier Iglesias Rodríguez & Aleksander Frejowski & Ivan Todorov, 2021. "Groundwater Risk Assessment in the Context of an Underground Coal Mine Closure and an Economic Evaluation of Proposed Treatments: A Case Study," Energies, MDPI, vol. 14(6), pages 1-17, March.
    2. Paweł Wrona & Zenon Różański & Grzegorz Pach & Adam P. Niewiadomski & Małgorzata Markowska & Andrzej Chmiela & Patrick J. Foster, 2023. "Variability of CO 2 , CH 4 , and O 2 Concentration in the Vicinity of a Closed Mining Shaft in the Light of Extreme Weather Events—Numerical Simulations," Energies, MDPI, vol. 16(22), pages 1-15, November.
    3. Ahuja, Mayank & Mondal, Debjeet & Mishra, D.P. & Ghosh, Sayan & Kumar, Manoj, 2023. "Assessment of financial and environmental impacts of pre-mining methane drainage in Indian scenario: A case study using Jharia coal seams," Innovation and Green Development, Elsevier, vol. 2(3).
    4. Adam Duda, 2023. "The Impact of Atmospheric Pressure Changes on Methane Emission from Goafs to Coal Mine Workings," Energies, MDPI, vol. 17(1), pages 1-14, December.

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    More about this item

    Keywords

    risk; hazard; methane; gas; mine closure;
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