The origin of GHG's emission from self-heating coal waste dump: Atmogeochemical interactions and environmental implications

Górka, Maciej; Bezyk, Yaroslav; Stra̧poć, Dariusz; Nęcki, Jarosław

doi:10.1016/j.coal.2021.103912

Cited by 8 publications

(7 citation statements)

References 45 publications

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“…Comparing the results (Supplementary Appendix SD, Figure 11) we can state that ATTI is less diverse than SHII; still, the activity of the research areas shows two more active phases, 2002-2010 and 2015-2020, when most of the sites manifested a higher capacity to generate emissions -advanced or extreme. We observed that over 23 years, each research object showed activity related to heat generation and possible GHG emissions (Górka et al, 2022). The most active facilities are heaps 10 and 11 in the Nowa Ruda area, tailings ponds 16 and 17 in the Nowa Ruda area, and settling pond 12 in the Walbrzych area (Figure 11).…”

Section: Resultsmentioning

confidence: 96%

“…In the study, we did not investigate GHG's origin and emissivity. Still, based on the analysis of other researchers (Carras et al, 2009;Engle et al, 2011;Górka et al, 2022), we can assume that thermal activity in coal-waste facilities always generates GHG emissions. For further research, verifying greenhouse gas emissions based on satellite data with high spatial resolution and in situ calibration of the results is essential.…”

Section: Limitations Of the Studymentioning

confidence: 99%

“…Very often, they are thermally active, and spontaneous combustion occurs, causing endogenous fires and raising the temperature in their interior, on the surface, and in fissures locally extending to the surface (Scheme 1). Heap and tailings fires negatively affect the environment and cause emissions of pollutants such as CH 4 , CO, CO 2 , H 2 S, SO 2 , NH 3 , aromatic hydrocarbons (PAHs), or containing toxic metals (Ba, Cr, Cd, Hg, Pb, and Z) (Carras et al, 2009;Ribeiro et al, 2010;Elsevier et al, 2012;Kuna-Gwoździewicz, 2013;Melody and Johnston, 2015;Liang et al, 2016;Stankevich et al, 2016;Gawor, 2017;Fabiańska et al, 2019;Nádudvari et al, 2020;Swolkień, 2020;Abramowicz et al, 2021a;Nádudvari et al, 2021a;Abramowicz et al, 2021b;Nádudvari et al, 2021b;Smoliński et al, 2021;Górka et al, 2022;Nádudvari et al, 2022;Rykała et al, 2022;Dąbrowska et al, 2023).…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Remote detection and monitoring of post-mining heat island

Worsa-Kozak,

Górniak-Zimroz,

Szrek

et al. 2024

Front. Environ. Sci.

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Underground hard coal mining activity in southern Poland has lasted more than 200 years. Among many factors related to mining and influencing the natural environment, the longest-active are coal waste heaps and tailings ponds. Several hundred objects are inventoried in Lower and Upper Silesia, of which 109 are located in the Lower Silesian Coal Basin (LSCB). These remnants of mining activity are built of gangue, waste coal, and coal silt (post-mining wastes). They cause environmental hazards, i.e., soil, air, groundwater, and surface water pollution in the storage area. They also tend to combust spontaneously, emitting enormous amounts of greenhouse gases into the atmosphere and increasing their neighborhood’s air, soil, and water temperature. Indigenous fires occur more than 20 years after the end of the waste disposal phase. The post-mining heat island (PMHI) phenomena, related to thermal activity development of the post-coal mining heaps and tailings ponds, is still under-recognition and research. Therefore, our study aims to improve and develop a methodology for remote detection and monitoring of heat islands resulting from coal mining operations to track the thermal activity of heaps and tailings ponds in LSCB from mines closure to 2023. The study used open satellite data from the Landsat program to identify and track post-mining heat islands over 23 years within the former mining area and verify the results within the borders of the inventoried heaps and tailings ponds. As a result, geospatial analysis on a time scale was carried out to identify post-mining hot spots. The self-heating intensity index (SHII) and the air temperature thermal indicator (ATTI) were calculated for identified and confirmed objects. SHII ranged between 0.00 and 10.07, and ATTI, on the other hand, varied from −12.68 to 25.18. Moreover, maps of the thermal activity of selected heaps were developed, the characteristics of the self-combustion phenomena were identified, and the remote detection of PMHI and its monitoring methodology was developed. The provided method can be used in the future to regularly monitor coal mining areas to prevent and identify hazardous hot spots and verify the maturity stage of the self-combustion processes.

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Section: Resultsmentioning

confidence: 96%

Section: Limitations Of the Studymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Remote detection and monitoring of post-mining heat island

Worsa-Kozak,

Górniak-Zimroz,

Szrek

et al. 2024

Front. Environ. Sci.

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“…The phenomenon of spontaneous combustion of coal has long been the concern of various experts because it is very detrimental to mining companies, the economy, the environment and society [Gorka, et al, 2022; Onifade & Genc, 2018; Onifade & Genc, 2019; Phenrat, 2020; Umar, et al, 2012;Zhu et al, 2018]. Spontaneous combustion occurs due to oxidation of coal at low temperatures, exothermal reactions, adiabatic processes, and long-term accumulation of coal causing self-heating to spontaneous combustion, which includes the following processes: latent stage, heat accumulation stage, evaporation stage, active stage, and hypoxic stage.…”

Section: Introductionmentioning

confidence: 99%

“…CH 4 gas is one of the greenhouse gases whose global warming potential is 28-36 times that of CO 2 gas over a 100 year period [Aldhafeeri, et al, 2020;Kholod, et al, 2020;Wu and Mu, 2019]. Research on the concentration of CH 4 gas emissions in coal mining activities in the field shows quite large results ranging from 3,700-34,098 mg/m 3 [Fabianska, et al, 2019;Gorka, et al, 2022]. Coal mining activities contribute 11% of CH 4 gas emissions to global warming [Kholod, et al, 2020].…”

Section: Introductionmentioning

confidence: 99%

The Role of Organic Sulfur in the Formation of Methane Emissions on the Spontaneous Combustion of Coal

Yusuf¹

2023

J. Ecol. Eng.

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Spontaneous combustion of coal is a phenomenon that often occurs in open coal mining activities, especially strip mining and open pit mining systems which are detrimental to mining companies, the economy, the environment, and society. This phenomenon causes coal mining activities to contribute to CH 4 gas emissions in global warming by 11% of total global emission. The purpose of this study was to analyze the role of organic sulfur in the formation of CH 4 gas emissions in the spontaneous combustion of coal in the TAL area. The approach is based on a literature review and field survey. The literature review was intended to examine the influence of geological factors, maceral analysis, and depositional environment on the rank and form of coal sulfur, while the field survey was conducted by measuring CH 4 gas emissions in 36 samples of spontaneous combustion hotspots. Literature review shows that coal in the TAL area belongs to low rank (sub-bituminous/sub-bituminous B) which has high organic sulfur content in the form of thiother bonds (C-S), especially carbon disulfide (CS 2 ). The average CH 4 emission measurement in the field is 6,989 mg/m 3 , which is still within the limits set by other researchers, between 3,700-34,098 mg/m 3 . The role of organic sulfur from C-S bonds especially CS 2 in the formation of CH 4 gas emissions, is very dominant at 93.10% or 6,507 mg/m3 of the total coal sulfur in the TAL area. The emission of CH 4 gas in the spontaneous combustion of coal is strongly influenced by geological factors, maceral analysis, and the depositional environment related to the rank and form of coal sulfur. Further, detailed, and comprehensive research on the form of organic sulfur needs to be carried out to mitigate CH 4 gas emissions in the spontaneous combustion of coal in the TAL area.

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Fault diagnosis study of mine drainage pump based on MED–WPD and RBFNN

Huang

Tian

et al. 2023

J Braz. Soc. Mech. Sci. Eng.

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The origin of GHG's emission from self-heating coal waste dump: Atmogeochemical interactions and environmental implications

Cited by 8 publications

References 45 publications

Remote detection and monitoring of post-mining heat island

Remote detection and monitoring of post-mining heat island

The Role of Organic Sulfur in the Formation of Methane Emissions on the Spontaneous Combustion of Coal

Fault diagnosis study of mine drainage pump based on MED–WPD and RBFNN

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