— Characterisation of coal-mine waste in solid backfill mining in China March 2015 Transactions of the Institution of Mining and Metallurgy, Section A: Mining Technology 124(1):56-63
— Request PDF | From coal-mining waste to construction material: a study of its mineral phases | The study from the recycling of coal mining waste from NW of Spain as pozzolans materials in cement ...
234 Managing the Mining Environment 234 Large-Volume Waste 243 Mine Closure Planning 246 Mining Legacies 248 Environmental Management ... the best modern surface coal operations may leave behind sites at which casual observers may not even realize that mining has occurred.However,it is hard
— The aim of this study was to analyze the dynamics of the research focused on mining waste and its sustainable management on a worldwide scale from 1988 to 2017. A systematic review and a ...
— As the construction industry around the globe seeks to reduce its carbon emissions by looking for supplements for cement, the voluminous amount of coal mining …
About 50 million tonnes/year of waste rock from coal-mining is generated in the limited area of the thickly populated Upper Silesian Coal Basin (USCB) in Poland. There are 380 coal-mining waste dumps, including 76 active dump sites covering over 2,000 ha. About 15-16 million tonnes/year of waste rock is being reused for civil engineering purposes in the …
— The aim of this work was to study the use of coal waste to produce concrete paving blocks. 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 particle size analysis; technological characterization of …
— Surface/open cast mining and deep underground mining are considered two basic methods for coal extraction globally. 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]. Fig. 1 presents different life cycle stages of coal with details of …
— 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 …
— However, coal mine activity is criticized for its harmful environmental impact and especially for the large amount of wastes produced during the coal mining and processing. For example, in China, the world's largest consumer of coal, 4.5 billion tons of wastes are stockpiled in hundreds of dumps (Fan et al., 2014).
Moreover, the disposal of mining waste, such as coal ash and slurry, poses additional threats to ecosystems. Improperly managed waste can leach contaminants into nearby water bodies, affecting aquatic life and potentially entering the food chain. The environmental impact of coal mining extends to human health, particularly for communities
— Correspondingly, it has produced large quantities of mining waste including coal gangue, coal sludge, fly-ash, coal mine drainage and coal-bed methane (CBM) that are hazardous to the soil, air ...
Inevitably, coal mining and processing create significant volumes of waste products. In many. coal-producing countries, huge quantities have been generated and stored in …
Abstract Ever since the commencement of industrial-scale coal mining (in northeast England around 1600), substantial environmental impacts have been recorded as arising from both the mined voids and from the wastes left behind at the surface. In the ...
— The results implied that soil catalase activity in NSA and ureases activity in the 20–40 cm soil layer of NSA and OSA were significantly enhanced after vegetation restoration, and that long-term plant restoration could improve soil fertility and soil microbial community diversity in coal mining areas.
A total of 32 arsenic resistant bacterial strains were isolated and identified from the mining wastes of Shangrao coal mine of China and analysis of 16S rDNA revealed that they belong to 4 different phylogenetic Clades. A total of 32 arsenic resistant bacterial strains were isolated and identified from the mining wastes of Shangrao coal mine of China. Twelve …
DOI: 10.1016/j.jenvman.2021.114239 Corpus ID: 245097955; Waste management in the mining industry of metals ores, coal, oil and natural gas - A review. @article{Kalisz2021WasteMI, title={Waste management in the mining industry of metals ores, coal, oil and natural gas - A review.}, author={Szymon Kalisz and Katarzyna Kibort …
— 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 distinguished: …
— This paper deals with the potential reuse of coal mine waste rocks (CMWR) as an alternative material for road construction to conserve the natural resources and …
— While the 1.5°C and 2°C scenarios anticipate a decrease in total primary energy consumption by 2050, they still maintain a dominant reliance on fossil fuels (particularly coal), accounting for ...
— Request PDF | Coal mining waste in Poland in reference to circular economy principles | The article deals with the problem of mining waste, which is the largest group of waste balance in Poland.
— The term mine waste implies that the material has no current economic value and is an unwanted by-product of mining. However, some mine wastes can be useful and this has been recognized since the beginning of mining and smelting . For example, the use of slag in road construction can be traced back to the very early days when the Romans …
PDF | On Feb 27, 2013, Jaak J. K. Daemen and others published Mining Solid Wastes; Encyclopedia of Sustainability Science and Technology: SpringerReference | Find, read and cite all the research ...
Using Dongtan (DT), Nantun (NT) and Xinglongzhuang (XLZ) coal mines as examples, the components of coal mining wastes and their potential pollution contribution to soil, …
— PDF | Sulfidic coal mining wastes constitute one of the the major global bulk waste stream and are extensively reused in engineering constructions.... | Find, read and cite all the research you ...
— This article reviews the literature on the geochemical, geotechnical and structural engineering properties of coal mining waste geomaterials to assess their suitability as replacement for...
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. As the environmental laws for extracting sand from ...
— 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 …
Download Free PDF. Effect of activated coal mining wastes on the properties of blended cement. Moisés Frias. 2012, Cement and Concrete Composites. See full PDF download Download PDF. Related papers. The Influence of Activated Coal Mining Wastes on the Mineralogy of Blended Cement Pastes.
— A larger overburden generation rate and, consequently, a higher volume of mining waste from removing valuable coal are both indicated by a higher stripping ratio in the case of the Indian coal mining sector (Sahoo et al., 2018). The Indian government's goal to boost coal production to 1 billion tonnes per year and the increased stripping ratio ...
— 1.1 Introduction. Since the increased mechanization of surface and underground coal mining, the proportion of out-of-seam dilution (OSD) mining from …
— Request PDF | Technosol as an integrated management tool for turning urban and coal mining waste into a resource | The present study aims to evaluate plant growth and chemical characteristics of ...
There are 380 coal-mining waste dumps, including 76 active dumps covering 2166 ha in the Katowice district (State Inspectorate of the Environment Protection 1995). Up to the late seventies, the self-ignition of coal-mining waste dumps was a primary concern, and potential pollution of ground water was not considered important.
— Coal production presents major sustainability challenges as it continually generates large amounts of waste, in addition to previously accumulated waste that have flow-on adverse effects on society and the environment. We have explored some of the opportunities for repurposing, reusing, reprocessing or recycling discards of the coal …
5 Mitigation of mining problems of northeastern coalfields of Assam Although mining in Assam is more than a century old and Coal India Limited is operational since 1975, limited strategies are adopted by NECL …
Coal mining wastes mainly include weathered coal, which is produced from coal weathering in coal surface mining. Before mining, coal exists in a water-saturated, oxygen-free environment, any disturbance to this environment such as a change in the water table depth, temperature, oxygen partial pressure or moisture content would result in changes ...
— Mineral waste can be defined as a material leftover from exploration, mining and quarrying operation that cannot find a productive use. It is the high-volume material that originates from the excavation and physical and chemical processing of a wide range of metalliferous and non-metalliferous minerals by opencast and deep shaft methods [].The …
— The disposal of waste products from coal beneficiation is a necessary consequence of the coal washing process and is thus of considerable concern to mining companies where improvement of coal ...
