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 …

 — 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 …

 — PDF | In China, coal mining wastes have traditionally been dumped in cone-shaped heaps that have the potential to pollute air, soil and water... | Find, read and cite all the research you need on ...

 — 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 …

 — A typology of the known impacts arising from mine voids and wastes in coal mining districts has been developed, which recognizes many subcategories of impacts under five major headings: air ...

 — 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 ...

 — This paper consists of the evaluation in regards to the ecotoxicological effectiveness of a treatment applied to a coal mining waste. The treatment consisted of separating the particles based on gravimetric concentration in spirals, generating three fractions: heavy, intermediate, and light, with high, moderate, and low pyrite content, …

 — Abstract 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 …

 — Historically coal mining wastes have been viewed as heterogenous and hazard-prone geomaterials. Given that failures of colliery tips and tailing dams are reported on a regular basis, reclamation of coal mining wastes from storage facilities is increasingly being considered. There is a resistance to the use of coal mining waste in construction …

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.

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 ...

 — 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 …

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 …

 — Request PDF | Mine Wastes: Characterization, Treatment and Environmental Impacts | This book provides a thorough, up-to-date overview of wastes accumulating at mine sites. It deals comprehensively ...

 — 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.

 — 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 …

 — 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 ...

PDF | On Apr 22, 2024, L. Simão and others published Potentiality of coal mining waste to obtain geopolymers | Find, read and cite all the research you need on ResearchGate

 — 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 ...

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 ...

 — 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 ...

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 …

 — 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 …

 — Fly-ash and coal gangue are the two main industrial solid waste in China. The chemical compositions (shown in Table 1) were SiO 2, Al 2 O 3, Fe 2 O 3 and some impurities. As the coal gangue is main solid waste for coal mining, one of the most common approaches to waste rock is to stack construction that encapsulate the most pyrite rich …

 — 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 ...

Inevitably, coal mining and processing create significant volumes of waste products. In many. coal-producing countries, huge quantities have been generated and stored in …

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 …

 — Globally, coal mining wastes (CMWs) are associated with significant environmental and economic costs. Processing CMW into an ingredient of concrete is a promising solution but the behaviour ...