The impact of disposal and treatment of coal mining …
of utilization of coal mining wastes was, for example, 50 and 25% was used as fill, using 2006 figures, there were 215.5 million tons coal mining wastes being dumped and 107.75 million tons coal mining wastes used as fills which would exist as a potential source of pollution to soil and groundwater. Besides the utilization of coal mining wastes
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Coal wastes: handling, pollution, impacts, and utilization
The coal mining industry creates hundreds of millions of tons of rock, waste coal, and cleaning waste streams comprising coal bed methane (CBM), coal sludge, fine …
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(PDF) Design Considerations for Waste Dumps in Indian Opencast Coal
It has led to an overall waste accumulation in the form of fragments of rocks and undesirable top soil overlying the coal seams. This mass of heterogeneous rock matrix (Nayak et al. 2020, Sengupta ...
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(PDF) Waste disposal in coal mining—a …
Waste disposal in coal mining—a geotechnical analysis. Authors: Andrew Leventhal. GHD Geotechnics. L.P. de Ambrosis. Abstract. The disposal of waste products from coal beneficiation...
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Weathering alterations of coal mining wastes
The inorganic composition of coal mining wastes of the Janina and Marcel mines is dominated by SiO 2 and Al 2 O 3 (Table 7, Table 8). In the Janina coal mining waste dump, the higher arithmetic averages of SiO 2, Na 2 O, and K 2 O were found for recent production in 2018 than in 2017–2008 years (Tables 2Sa-b in Supplement). The …
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[PDF] Coal mining wastes valorization as raw geomaterials in
Coal mining wastes valorization as raw geomaterials in construction: A review with new perspectives. Thanh Vo, William Nash, +4 authors. L. Ferrara. …
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(PDF) Coal mining wastes valorization as raw …
Coal mining wastes valorization as raw geomaterials in construction: A review with new perspectives. December 2021. Journal of Cleaner Production 336 (2):130213. DOI:...
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(PDF) Evaluation of toxic and hazardous waste management in coal mining
Coal is a relatively abundant energy source, especially in East Kalimantan Province. PT X is one of the coal mining companies that has experienced increased demand to meet consumer needs.
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Comparative Analyses of the Microbial Communities Inhabiting Coal
Sampling and Geochemical Analysis. The study site is located in a coal mining area in Guizhou province, Southwest China (Fig. S1).A total of 29 coal mining waste dump samples and 14 AMD creek sediment samples were collected by a sterile soil sampler from the upper 20 cm of the coal mining waste dump piles and AMD sediments.
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The reuse and recycling of coal mining waste with zero-waste …
Therefore, it is estimated that the annual production of coal mining waste is about 315 million tonnes for underground coal mining since 2007, which accounts for a quarter of the total industrial solid waste. There are about 4.5 billion tonnes of coal mining wastes stockpiled at 1700 waste dumps, occupying 15,000 ha lands (Bian et al., 2009).
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(PDF) Distribution and environmental impact of coal-mining wastes …
Distribution and environmental impact of coal-mining wastes in Upper Silesia, Poland
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(PDF) INVESTIGATION OF GEOTECHNICAL PROPERTIES OF COAL MINE WASTE…
The methodology considered the following steps: sampling of a coal mining waste; gravity separation of the fraction with specific gravity between 2.4 and 2.8; comminution of the material and ...
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Coal mine wastes recycling for coal recovery and eco …
The mining industry is globally criticized for generating large amount of solid wastes often with a potential environmental impact. This study presents a feasible approach of recovering residual coal from coal mine waste rocks (CMWR) and reusing the derived tailings to produce ecofriendly fired bricks. The first step aims at the production of ...
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Soil properties in reclaimed farmland by filling
Reclaimed mining-induced subsidence area soils (RMSs) could restore soil quality and crop productivity in coal mining area. This study was conducted to evaluate the effects of mineral-processing wastes (fly ash vs coal gangue) as backfill substrates on soil chemical and microbial properties in mining-induced subsidence area.
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(PDF) Coal mining waste management and its …
The paper is focused on the impact assessment of coal mining waste management practices exemp-lified in different objects …
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(PDF) The Influence of Activated Coal Mining Wastes on the …
once activated thermally, it becomes a highly pozzolanic pro-. duct (ACM). This study reports the influence of activated car-. bon mining waste on the formation and evolution of the ...
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(PDF) ENVIRONMENTAL IMPACTS AT COAL WASTE …
During beneficiation of coal at the coal mining area of Tula, Russia, huge volumes of coal wastes with considerable residual pyrite content are produced. These wastes that are usually disposed of without specific care in the environment are active sources of coal mine drainage generation which severely contaminates soils, surface- and ...
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Brick production and characterization containing coal mining waste
The study has involved the addition of coal mining wastes obtained from different stages of coal production processes, which are pulverized by dry grinding, into the brick clay in varying ...
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(PDF) Mining Waste and Its Sustainable …
the environment has led to an increase in the research in this field. The aim of this study was to. analyze the dynamics of the research focused on mining waste and its sustainable management on ...
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A systematic review exploring the utilization of coal mining …
Likewise, the mining wastes have been referred to as coal OB [35], [36], [37] or coal rejects [38], or tunnel gangue [31] by many researchers. For ease of understanding, the term "overburden" (OB) is used for the wastes generated at the time of mining, and "tailing" is used for the wastes generated during the preparation of coal, in ...
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(PDF) Reuse of coal mining wastes: environmental benefits …
Abstract. Mechanized mining of hard coal results in generating waste estimated at 30-50% of coal output. Although not considered a hazardous waste, it is not environmentally neutral, mostly due to ...
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(PDF) The impact of disposal and treatment of coal mining wastes …
The main environmental problems from coal mining wastes dump. As stated above, majority of coal mining wa stes in China was dumped as a cone-shaped. heap shown as figure 2 (left), which had ...
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(PDF) Coal mining waste as a kaolinite source for production of …
Calcined coal gangue powder was used to partially replace Portland cement (PC) at 10%, 20%, 30%, and 40% by weight. The water to binder ratio (w/b) of 0.5 was used for all the blended cement paste ...
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(PDF) Recovery of Mining Wastes in Building …
In mining, mineraliz ed wastes come from three m ain sources: mining explo ita- tion, mineral proces sing and metallur gical processing. The typology of mi ning waste depend s on its origin.
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A systematic review exploring the utilization of coal mining …
The rising trend of coal mining activities has resulted in the accumulation of mining and processing wastes with low carbon levels over the past few decades [6]. …
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Management of coal combustion wastes
Management of coal combustion wastes 5 Burning coal in a coal-fired power plant produces a variety of solid residues known as coal combustion products (CCPs), coal combustion residues (CCRs) or coal combustion wastes (CCWs). CCPs are now more commonly called coal combustion by-products (CCBs) because of their increasing …
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The Challenges of Reusing Mining and Mineral-Processing Wastes
Of this waste, up to (total waste with no production of prospective minerals) may be due to the mining or extraction method. Wastes produced during coal preparation (removal of undesired materials from coal through coal washing, crushing, screening, and dewatering) may reach 10 to 30% of raw coal; most of these wastes are …
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Compressive Strength of Concrete with Coal Mining Waste
Coal mining waste (CMW), a by-product of the mining and production of coal accounts for about 15% of coal production, which varies from 10 to 15% with the change in geological and mining conditions [].The majority of CMW has been dumped as cone-shaped heaps and tips, with the potential to cause environmental problems and …
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(PDF) Valorization of South African Coal Wastes …
Sustainable management of coal waste is one of the major environmental concerns for coal mining, whether active or legacy, worldwide. Coal dump deposits demand a large physical area or …
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Potential resources from coal mining and combustion …
Coal mining and processing, and utilisation, largely for combustion and coking in steel making, generate large volumes of unwanted material (Fig. 1) that adversely impact the …
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