Investigation on future perspectives of ex-situ biogenic methane generation from solid waste coal and coal washery rejects

Ponnudurai, Vinitha; Kumar, P. Senthil; Muthuvelu, Kirupa Sankar; Sivasubramanian, V.; Subhani, Syed; Arumugam, Loganathan; Rajarathinam, Ravikumar

doi:10.1016/j.fuel.2022.123497

Cited by 8 publications

(3 citation statements)

References 85 publications

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“…Coal mine gas (coalbed methane) is a high-quality clean source of energy and a good industrial, chemical, power generation and residential fuel (Wang, Fan et al 2019, Zhou, Hu et al 2020, Zhao, Zhuo et al 2021, Buzek, Cejkova et al 2022, Jha, Ghosh et al 2022. Besides, coalbed methane drainage is quite important for the safe production in coal mines and the utilization of gas resources (Zhou, Xia et al 2016, Banik 2020, Zhou, Hu et al 2020, Ponnudurai, Kumar et al 2022, Joshi, Prajapati et al 2023, Kishor, Kumar Srivastava et al 2023, Ye, Li et al 2023.…”

Section: Introductionmentioning

confidence: 99%

Key technology and application of surface well drainage of coalbed methane in mining area of high gas mine

Fu,

Wen,

Zhang

et al. 2024

Preprint

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The coalbed methane drainage with surface well, under the mining effects in a high gas coal mine has become increasingly important, especially for a complex region for the coalbed methane drainage. In contrast, due to the effects of coal mining, the surface wells are prone to deformation and damage. In this paper, a displacement and deformation model for the overlying strata was established. Three forms of deformation and failure of the surface well casing were proposed, such as shearing, stretching and uneven extrusion. Moreover, the mathematical model functions of “S” - type shear deformation, delamination tensile deformation and non-uniform extrusion for the surface well were established. In the ShanXi Coal Group YueCheng Mine, on the mining affected area surface well the coalbed methane drainage practice was conducted, producing a good coalbed methane drainage effect. YCCD-04 well without local protective device was deformed and damaged, and the dynamic deformation and failure process of surface well was detected by well imager; YCCD-02 well with local protective device has experienced mining and gas drainage effect is good, which verifies the effectiveness of local protective device. The YCCD-02 well coalbed methane drainage was 35 months in duration and the cumulative extraction of coalbed methane drainage volume was 1.3×107 m3. Simultaneously, the problem of gas control in the working face was solved, to ensure the safety of coal mining, achieving good social and economic effects.

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Section: Introductionmentioning

confidence: 99%

Key technology and application of surface well drainage of coalbed methane in mining area of high gas mine

Fu,

Wen,

Zhang

et al. 2024

Preprint

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“…As a fossil fuel, coal plays an important role in the energy sector in areas such as power generation, heating, and industrial production [1,2]. However, coal mining has led to extensive land stripping and the destruction of vegetation, causing irreversible damage to the ecosystem [3][4][5]. Ecological restoration and environmental remediation work must be carried out in the mining area after mining is completed to return it to a natural or sustainable state of utilization [6][7][8].…”

Section: Introductionmentioning

confidence: 99%

Exploring Land-Cover Types and Their Changes in the Open-Pit Mining Area of Ordos City Using Sentinel-2 Imagery

Zhu,

Zhang,

Chen

et al. 2023

Sustainability

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Exploring the land-cover types and their changes in open-pit mining areas is of great significance to the ecological restoration of Ordos City and its sustainable development. Therefore, in this study, the temporal features, spectral features, and the derived features from intra-annual images combined with the random forest method were used to determine the land-cover types and their changes in the open-pit mining area of Ordos City in 2019 and 2022. The results show that the land-cover types in the open-pit mining area of Ordos City are construction land, bare land, water, vegetation, and coal. The main land-cover types in the western open-pit mining area of Ordos City are different from those in the eastern open-pit mining area. The main land-cover type changes in the open-pit mining area from 2019 to 2022 are the conversion of bare land to vegetation and the conversion of coal to bare land, as well as the conversion of vegetation to bare land. This study provides the possibility of dynamic monitoring for the realization of green mine planning in Ordos City.

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“…In the present comprehensive review based on a systematic literature search, we aimed to take a deep look at the overall functional structure and metabolic potentials of key microorganisms (bacteria, fungi, and microalgae) native to coal environments in the production of value-added compounds and remediation of coal-impacted sites. However, the microbial potentials driving coal biodesulfurization and coalbed methane generation are beyond the scope of this review due to the numerous excellent works published recently [ 7 , 8 , 9 ].…”

Section: Introductionmentioning

confidence: 99%

Biotechnology of Microorganisms from Coal Environments: From Environmental Remediation to Energy Production

Akimbekov

Digel

Tastambek

et al. 2022

Biology

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It was generally believed that coal sources are not favorable as live-in habitats for microorganisms due to their recalcitrant chemical nature and negligible decomposition. However, accumulating evidence has revealed the presence of diverse microbial groups in coal environments and their significant metabolic role in coal biogeochemical dynamics and ecosystem functioning. The high oxygen content, organic fractions, and lignin-like structures of lower-rank coals may provide effective means for microbial attack, still representing a greatly unexplored frontier in microbiology. Coal degradation/conversion technology by native bacterial and fungal species has great potential in agricultural development, chemical industry production, and environmental rehabilitation. Furthermore, native microalgal species can offer a sustainable energy source and an excellent bioremediation strategy applicable to coal spill/seam waters. Additionally, the measures of the fate of the microbial community would serve as an indicator of restoration progress on post-coal-mining sites. This review puts forward a comprehensive vision of coal biodegradation and bioprocessing by microorganisms native to coal environments for determining their biotechnological potential and possible applications.

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Investigation on future perspectives of ex-situ biogenic methane generation from solid waste coal and coal washery rejects

Cited by 8 publications

References 85 publications

Key technology and application of surface well drainage of coalbed methane in mining area of high gas mine

Key technology and application of surface well drainage of coalbed methane in mining area of high gas mine

Exploring Land-Cover Types and Their Changes in the Open-Pit Mining Area of Ordos City Using Sentinel-2 Imagery

Biotechnology of Microorganisms from Coal Environments: From Environmental Remediation to Energy Production

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