Mercury emission from coal seam fire at Wuda, Inner Mongolia, China

Liang, Yanci; Liang, Handong; Zhu, Songming

doi:10.1016/j.atmosenv.2013.09.001

Cited by 79 publications

(35 citation statements)

References 35 publications

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“…and trace elements (As, F, Se, Hg, etc.) released threaten local people's health (Finkelman, 2004;Finkelman et al, 2003;Hower et al, 2011;Liang et al, 2014;O'Keefe et al, 2010O'Keefe et al, , 2011Schloemer et al, 2008;Zhao et al, 2008). In addition, green house relevant gases such as CO 2 and CH 4 emitted by coal fires contribute to global warming (Engle et al, 2012a;Kuenzer et al, 2007b;Litschke et al, 2008;van Dijk et al, 2009van Dijk et al, , 2011.…”

mentioning

confidence: 93%

“…They are mainly distributed along the northern coal belt of China (Song and Kuenzer, 2014), particularly, in Inner Mongolia Autonomous Region (Kuenzer et al, 2007b, Xinjiang Uygur Autonomous Region (Shao et al, 2014;Zhang et al, 2004a,b), Ningxia Hui Autonomous Region (Huo et al, 2014;Kuenzer et al, 2007b;Litschke, 2005;Tetzlaff, 2004), Shanxi Province (Querol et al, 2008(Querol et al, , 2011Shao et al, 2015;Zhao et al, 2008), Shaanxi Province, Heilongjiang Province , Qinghai Province and Guizhou Province. Coal fires in Wuda coalfield of Inner Mongolia belong to the largest coal fires in China and have been most extensively investigated (Gangopadhyay, 2003;Gangopadhyay et al, 2005;Kuenzer et al, 2007bKuenzer et al, , 2008Liang et al, 2014;Lindner et al, 2010;Litschke et al, 2008;Schloemer et al, 2008;Stracher et al, 2012;.…”

mentioning

confidence: 98%

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Analysis of coal fire dynamics in the Wuda syncline impacted by fire-fighting activities based on in-situ observations and Landsat-8 remote sensing data

Song

Kuenzer

Zhu

et al. 2015

International Journal of Coal Geology

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confidence: 93%

mentioning

confidence: 98%

Analysis of coal fire dynamics in the Wuda syncline impacted by fire-fighting activities based on in-situ observations and Landsat-8 remote sensing data

Song

Kuenzer

Zhu

et al. 2015

International Journal of Coal Geology

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“…Configuration. The Huangbaici coal mine in our study is located in the Wuda Coal District of Inner Mongolia Autonomous Region, northwest China [21]. The Wuda District holds a large amount of coal reserve which consists of coal-bearing strata of Pennsylvanian and Permian ages.…”

Section: Field Condition and Modelmentioning

confidence: 99%

Optical Estimation on Pollution Level of Respirable Dust Based on Infrared Transmitting Behavior in Coalmine Fully Mechanized Working Face

Wang

Shi

2016

Journal of Spectroscopy

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Respirable coal particle generated during underground mining is the main cause for gas-dust explosions and coal workers’ pneumoconiosis (CWP) which needs accurate monitoring especially on its concentration. Focusing on the coal dust pollution in the fully mechanized working face of Huangbaici coalmine, coal particle was sampled for further industrial analysis and FT-IR test to obtain its chemical composition and optical constant. Combined with the simulated spatial distribution of airborne dust, the spectral transmission characteristics of coal dust within wavelengths of 2.5 to 25 μm under different operating conditions were obtained. The simulation results show that the transmittance and aerosol optical depth (AOD) of coal dust are closely linked and obviously influenced by the variation of dust generation source (intensity of dust release, position of coal cutting, and the wetting of the coal seam) and airflow field (wind speed and direction of ventilation). Furthermore, an optical channel of 1260–1280 cm−1(7.937–7.813 μm) which is almost only sensitive to the variation of dust concentration but dull to the diameter change of coal dust was selected to establish the correlation of dust concentration and infrared transmittance. The fitting curve was then applied to retrieve the equivalent dust concentration based on optical information, and the comparison results demonstrate that the estimated pollution level is consistent with field measurement data in engineering practice.

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“…However, coal spontaneous combustion happened all over the world which may result in large-scale coalmine and coalfield fires, such as Northern China, Pennsylvania in the USA, and Bihar in India (Stracher and Taylor 2004). The coal fires disasters threaten the local environment and destroy numerous coal resources (Cheng et al 2017;Civeira et al 2016;Li et al 2020b;Liang, Liang, Zhu 2014;Ren et al 2019b;Zeng, Dong, Zhao 2018).To prevent and control the coal fires, many scholars have paid much attention to the characteristics of coal spontaneous combustion. For instance, as the essential role on the heat transfer during coal spontaneous combustion at the initial stage, the temperature dependence of thermophysical parameters are obtained by Ren et al (2020).…”

Section: Introductionmentioning

confidence: 99%

Thermokinetic Characteristics of Coal Combustion under High Temperatures and Oxygen–Limited Atmospheres

Wang

Duan

Xiao

et al. 2020

Combustion Science and Technology

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Coal fires are widespread in the coal-major producing countries, which causes serious environmental issues due to the high temperature and hazardous gases during coal combustion. Under oxygen-depleted atmospheres, the thermal behaviors and kinetic characteristics during coal combustion at high temperatures were paid more attention by the method of TG-DSC synchronous thermal analysis. The results indicate that the focused weightlessness and heat release processes became scattered under oxygen-depleted atmospheres, and the influence of oxygen concentration obviously increased when it was below 13 vol.%. The mass presented a linear correlation to the quantity of heat release, and the relationship between the mass and quantity of heat release showed stage characteristics with oxygen concentration. Moreover, the kinetic modes transformed from random nucleation and subsequent growth to contractive sphere, and the critical oxygen concentrations are consistent to these of thermal behaviors. These findings are significant for better understanding the characteristics of coal spontaneous combustion at high-temperature and under low-oxygen concentrations.

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Mercury emission from coal seam fire at Wuda, Inner Mongolia, China

Cited by 79 publications

References 35 publications

Analysis of coal fire dynamics in the Wuda syncline impacted by fire-fighting activities based on in-situ observations and Landsat-8 remote sensing data

Analysis of coal fire dynamics in the Wuda syncline impacted by fire-fighting activities based on in-situ observations and Landsat-8 remote sensing data

Optical Estimation on Pollution Level of Respirable Dust Based on Infrared Transmitting Behavior in Coalmine Fully Mechanized Working Face

Thermokinetic Characteristics of Coal Combustion under High Temperatures and Oxygen–Limited Atmospheres

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