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Quantifying the coal mining impact on the ecological …
Opencast coal mines are safe and efficient, have low production cost, and high resource recovery rate (Li et al., 2013), which make it difficult to reuse the land in the mining area (Miao and Marrs, 2000). Meanwhile, the continuous accumulation of pollutant emissions may lead to resource depletion and soil pollution (Li et al., 2014, Li et al ...
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(PDF) Open Pit Coal Mines
PDF | On Apr 23, 2019, Cai qing xiang and others published Open Pit Coal Mines | Find, read and cite all the research you need on ResearchGate
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Open-pit Mining Ban Advances in the Mexican Congress
A committee in Mexico's lower house of Congress approved several of President López Obrador's constitutional reforms, which includes proposals to ban open …
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Open-Pit Mining: The Human Health Hazard
They are a common sight in mining for resources such as copper, gold, iron, and coal. While these mines are instrumental in supplying the raw materials for our modern lifestyle, they come with substantial human health hazards that are often overshadowed by their environmental impact. Human Health Risks in Open-Pit Mining
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Monitoring Mining Activities Using Sentinel-1A InSAR …
Long-term continuous monitoring of the mining activities in open-pit coal mines is conducive to planning and management of the mining operations. Additionally, this faciliatates assessment on their environmental impact and supervises illegal mining behaviors. Interferometric Synthetic Aperture Radar (InSAR) technology can be …
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Mexican mining sector balks at plan to ban open-pit mines
MEXICO CITY, Feb 15 (Reuters) - Mexican President Andres Manuel Lopez Obrador's proposal to ban open-pit mining will generate uncertainty and curtail investment for the key sector, mining industry ...
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Sustainability | Free Full-Text | Impact of Coal Mining on the Moisture
Long-term dewatering of groundwater is a necessary operation for mining safety in open-pit coal mines, as extensive dewatering might cause ecological problems due to dramatic changes in moisture movement in the soil, especially in ecologically fragile areas. In order to evaluate the impact of the coal mining operation on moisture …
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In His Last 40 Days in Office, Mexico's President Lopéz …
Open pit mining accounts for roughly 60% of the country's mining output. According to the Mexican Mining Chamber, Caminex, a wholesale prohibition could …
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Open Pit Mining
Mining and milling. Markus H.A. Piro, Ksenia Lipkina, in Advances in Nuclear Fuel Chemistry, 2020 8.2.3.1 Open pit mining. Open pit mining refers to mining directly on the ground surface, thereby producing an open pit. This method is practical and cost-effective when the uranium ore is located near the surface (e.g., within 100 m). Underground …
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Mexican mining sector balks at plan to ban open-pit mines
Mexican President Andres Manuel Lopez Obrador's proposal to ban open-pit mining will generate uncertainty and curtail investment for the key sector, mining industry representatives said this week.
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Standardized emissions inventory methodology for …
mented by mining companies. It was found that coal open-pit mines are emitting 0.726 and 0.180 kg of TSP and PM 10, respectively, per ton of coal produced. It was also found that these mines are using on average 1.148 m2 of land per ton of coal produced per year. Keywords Emissionsinventory.Open-pitoropen-cast mining.TSP.PM 10 1 Introduction
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Proposal to ban openpit mining advances in Mexican …
A committee in Mexico's lower house of Congress approved two constitutional reforms that would prohibit open-pit mining and fracking, as well as restrict the use of genetically modified corn.
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Prediction of road dust concentration in open-pit coal mines …
During the mining process of open-pit coal mines, various techniques can generate dust. However, according to related research, the dust production of the open-pit coal mine transportation road has reached 70%-90% of the total dust production of the whole mine. In order to control dust pollution in the entire open-pit coal mine, it should …
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Open-Pit Mining: A Comprehensive Guide
The Centers for Disease Control and Prevention (CDC) report that, in 2020, the United States had the following active mines: 6,251 sand and gravel pits, 4,281 stone quarries, 1,009 coal mines, 895 nonmetal mines, and 278 metal mines.
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Case Report Environmental Sustainability of Open-Pit …
industry and the communities living in mining areas. Two types of mining techniques are used: Open-pit mining and underground mining. Open-pit mining includes blasting of soil and vegetation to access underground ore layers or coal seams [17]. Consequently, this method produces large volumes of mining waste, including soil and overburden,
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2024 Mining Terms Explained
Retreat mining - A method of mining in which the mine retreats back towards the entrance as the ore is extracted, often used in coal or salt mining. Rib pillar - Pillars of coal or ore left to support the mine roof in a room-and-pillar mine. Rich ore - Ore that contains a higher than average amount of the desired material to be mined.
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Mexico's president calls for ban on open-pit mining
Mexican President Andrés Manuel López Obrador proposed to modify Article 27 to prohibit open-pit mining, as part of a range of constitutional reforms …
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Prediction of road dust concentration in open-pit coal mines …
The problem of dust pollution in the open-pit coal mine significantly impacts the health of staff, the regular operation of mining work, and the surrounding environment. At the same time, the open-pit road is the largest dust source. Therefore, it analyzes the influencing factors of road dust concentration in the open-pit coal mine.
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Open-Pit Mining | Method and Process | Epiroc US
The list of commodities is extensive, although the relative proportions mined underground and on the surface vary from mineral to mineral. Massive tonnages of hard coal and lignite are also produced from surface mines, although the terminology used – open cast or open cut, rather than open-pit – indicates that the technology and …
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Untangling the complex web of environmental, social, and …
Guan et al. (2017) conducted a study on the changes occurring in the Xilingol grassland due to surface coal mining. Lehmann et al. (2017) used aerial photographs from 1958, 1974, and 2009 to analyze the effects of mining activities on land use and land cover changes in the Gatumba mining district of Rwanda.
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Open-pit mining
Open-pit mining or opencast mining refers to a method of extracting rock or minerals from the earth by their removal from an open pit or borrow. It is a form of surface mining. The term is used to differentiate this form of mining from extractive methods that require tunneling into the earth, like longwall mining.. Open-pit mines are …
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New leadership for Mexico's largest openpit mine
Colorado-based gold mining company Newmont will transfer its Boddington gold and copper mine GM, Jim Cooper, from Australia to Mexico in the first quarter of this year to optimise its civil action-plagued Peñasquito openpit mine to improve productivity, lower costs and extend mine life. Newmont has identified additional upside from four key …
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Evaluation of Ecological Stability in Semi-Arid Open-Pit Coal Mining
Open-pit coal mining plays an important role in supporting national economic development; however, it has caused ecological problems and even seriously impacted regional ecological stability. Given the importance of maintaining ecological stability in semi-arid coal mining areas, this study used a coupling coordination degree …
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Cerrejon Open-pit Coal Mine, La Guajira, Colombia
Coal reserves at Cerrejon. The Cerrejon coal mine was estimated to hold 337.9Mt of proven and probable coal reserves grading 6040 kcal/kg as of December 2019. The total measured and indicated resources at the mine was estimated to be 4156.3Mt. Mining and coal handling . The Cerrejon coal mine has a total of 6 open-pits in operation.
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Mexican mining sector balks at plan to ban open-pit mines
Environmentalists say open-pit mining carves out swaths of earth and uses dangerous chemicals, and Mexican Environment Minister Luisa Albores has called it …
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An equipment selection and cost analysis system for openpit coal mines …
Abstract Turkish Coal Enterprises (TKI) is the largest coal producer of Turkey, The majority of coal stripping is done by private contractors and the decision for a contractual agreement is dictated by two relevant problems. The first problem is selection of size, type and number of major equipment that would yield the minimum unit cost for a stripping job. The …
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View over the Hambach mine, a large open-pit coal mine in …
Download this stock image: View over the Hambach mine, a large open-pit coal mine in Germany, operated by RWE for mining lignite. - 2XYJEJ0 from Alamy's library of millions of high resolution stock photos, illustrations and vectors.
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Mexican president proposes ban on open-pit mining
In detail, his proposal calls for banning the granting of open-pit mining concessions and activities related to the exploration, exploitation, benefit or use of …
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