Various examples of industries are the coal mining industry [2, 3], the phosphate mining industry [4], or a large deposit of mining wastes of an albite deposit in south Spain that could be of ...

Coal mining can have seriously adverse environmental and related impacts, including interference with groundwater quantity and quality, land subsidence, impacts on river …

The average production of coal mining wastes is about. 15% of coal production, which varies from 10 to 15% with the change. of geological and mining conditions. Therefore, it is estimated that ...

Figure 3 – Waste rock from an open pit operation has a wide range in particle size, and significant variability from one location to the next within the stockpile.. Spent Heap leach. In heap leach mining operations, rock is placed in constructed piles on the ground surface in multiple lifts and a chemical solution is repeatedly passed through the heap to dissolve …

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]. …

Distribution and environmental impact of coal-mining wastes in Upper Silesia, Poland

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

Studies on coal mining by-products have been conducted with materials from different origins, such as landfills (10)(11)(12), collected directly from washing plants (13) or coal sludge wastes (10,14).

In Europe, Poland is the main producer of mining waste. Hard coal mining and processing make up the largest share of this type of waste [16, 17]. The Lublin Coal Basin (the Bogdanka mine) belongs ...

The paper is focused on the impact assessment of coal mining waste management practices exemp-lified in different objects …

PDF | On Jun 28, 2023, S. Muller and others published Life-cycle assessment of coal mining wastes upcycling | Find, read and cite all the research you need on ResearchGate

TSFs store mining waste to avoid its interaction with the envi-ronment. However, understanding the threats their failures pose to biodiversity is important and useful to guide conservation and ...

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.

View PDF; Download full issue; Search ScienceDirect. Journal of Sustainable Mining. Volume 17, Issue 2, 2018, Pages 87-96. ... Recycling utilization patterns of coal mining waste in China. Resources, Conservation and Recycling, 54 (12) (2010), pp. 1331-1340. View PDF View article View in Scopus Google Scholar.

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 ...

3.1 Processed sand. The waste material from coal mining in India comprises mainly of sandstone, bands of clay and other metamorphic rocks. The sandstone ranges from coarse grain to fine grain. The waste rock generated to expose coal is normally backfilled, still a major volume is stacked over non coal area.

Frías et al. [24] studied blended cement mortars with 3 different thermally activated coal waste types (ACW) in the amount of 10 and 20 wt% and reported that at 28 and 90 days all ACW blended ...

At the same time, various types of waste are produced, including both mining and processing wastes, with diverse effects on human health and the environment [2, [5][6][7][8][9]. Although, the ...

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 ...

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 …

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 ...

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 …

The sampling of coal, coal tailing, drainage water from coal tailing, factory's waste water, secondary surface minerals and river water have been carried out in summer in 2005. On the basis of geochemistry and mineralogy results indicate that the amount of Fe2O3, SO3 and heavy metal have decreased strongly in coal tailing of Zirab coal ...

The study was conducted to examine the usability of coal mining wastes as a brick building material. 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 proportions (0–), shaping by the pressing …

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 ...

The environmental consequences arising from coal mining voids and wastes can be summarized under five major headings: air pollution, fire hazards, ground deformation, water pollution, and water ...

Waste from coal mining is managed, however only in 44%. Among the waste related to coal mining and processing, the following types of waste are …

Alekseenko et al. [75] found that coal mining waste disposal sites in Rostov Oblast, Russia, had a direct impact on the soil, which resulted in increased levels of Ba, Mo, Pb, Zn, Cr, V, Cu, and ...

Coal mining wastes valorization as raw geomaterials in construction: A review with new perspectives. Thanh Vo, William Nash, +4 authors. L. Ferrara. …

Overview. Abstract. Coal mining industries generate hundreds of millions of tonnes of waste coal, rock and cleaning waste stream containing fine coal (a by-product of …

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 …

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.

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 …

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 …

Mining wastes, both in the form of waste rock (blasted rock not subjected to mineral processing) and mine tailings (the residue remaining after mineral processing), are the largest solid 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 ...

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 ...

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).

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 ...