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abstract of coal mining - greenrevolution.org

coal mining abstract, what we owe our coal miners by anne lofaso. cumulative impacts of mountaintop mining on an appalachian. abstract. mountaintop mining is the dominant form of coal mining and the largest driver of land cover change in the central appalachians. the waste.

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(PDF) COAL MINING METHODS - ResearchGate

Feb 14, 2016  [Show full abstract] to 35 m, inherently high dust generation rates of coal, and the increased use of highly mechanized equipment. A project was formulated under SIMRAC auspices with the title of ...

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Development Status of Coal Mining in China - Abstract ...

Abstract . As a controllable active resource in China, coal mining is facing the transition from output to quality. Base d on the total mining production and average capacity, the current situation and level of coal mining at three scales of mine, city and province is analyzed , data support for the layout of sustainable mining development and ...

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coal mining Definition, History, Types, Facts Britannica

Coal mining, extraction of coal deposits from the surface of Earth from underground. Coal has been used since the Bronze Age, 3,000 to 4,000 years ago, and was the basic energy source that fueled the Industrial Revolution of the 18th and 19th centuries.

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The economic and social benefit of coal mining: the case ...

Oct 15, 2020  Abstract. This paper examines economic impacts of coal mining across local government areas (LGAs) in Australia. Three main distinguishing features of this research are a) the analysis through the mining boom and bust cycle, b) a focus on small regional areas within one state in Australia and c) the use of socio‐economic indicators in ...

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History of coal mining - Wikipedia

The history of Coal mining goes back thousands of years, with early mines documented in ancient China, the Roman Empire and other early historical economies. It became important in the Industrial Revolution of the 19th and 20th centuries, when it was primarily used to power steam engines, heat buildings and generate electricity. Coal mining continues as an important

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Strategic Management of Coal Mining Industry Efficiency

Abstract The purpose of this study is to develop recommendations for the coal mining industry efficiency strategic management. The authors developed a mathematical economic models to maximize the net present value of the index of companies in the composition of the coal mining industry and calculated the efficiency of Russian

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Environmental and Health Implications of Coal Mining at ...

Chibuisi Samuel Ikwuagwu. Environmental and Health Implications of Coal Mining at Maiganga, Gombe State, Nigeria. Journal of Environment Pollution and Human Health. 2017; 5(1):5-14. doi: 10.12691/jephh-5-1-2. Abstract Coal occurrence, exploitation, Processing, and utilization have strong impact both on human health and the environment.

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Environment Impact Assessment of Coal Mining

Abstract Environmental impact assessment is a decision making tool to predict ... environmental and social costs and benefits. Coal mining is the process of extracting the coal from the deep underground mines in the earth crust. Coal mining is one of the most illegal activities going on in the country. At the same time it totally

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Environmental impacts of coal-mining and coal-fired power ...

Because of the growth of coal mining, coal-fired power plants and coal-burning industries, the increase of the emission of particulates (coarse, fine or ultrafine) is of great concern.

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The economic and social benefit of coal mining: the case ...

Oct 15, 2020  Abstract. This paper examines economic impacts of coal mining across local government areas (LGAs) in Australia. Three main distinguishing features of this research are a) the analysis through the mining boom and bust cycle, b) a focus on small regional areas within one state in Australia and c) the use of socio‐economic indicators in ...

Read More
Development Status of Coal Mining in China - Abstract ...

Abstract . As a controllable active resource in China, coal mining is facing the transition from output to quality. Base d on the total mining production and average capacity, the current situation and level of coal mining at three scales of mine, city and province is analyzed , data support for the layout of sustainable mining development and ...

Read More
Environmental Impact of Coal Mining on Water Regime and ...

Abstract. Coal mining is one of the core industries that contribute to the economic development of a country but deteriorate the environment. Being the primary source of energy coal has become essen-tial to meet the energy demand of a country. It is excavated by both opencast and underground mining

Read More
Strategic Management of Coal Mining Industry Efficiency

Abstract The purpose of this study is to develop recommendations for the coal mining industry efficiency strategic management. The authors developed a mathematical economic models to maximize the net present value of the index of companies in the composition of the coal mining industry and calculated the efficiency of Russian

Read More
COAL MINING AND THE ENVIRONMENT

Abstract The environmental impacts of coal mining in South Africa are reviewed. The primary impacts arise from mining, particularly underground mining, largely because South African coal mines are relatively shallow. Coal washing gives rises to large waste dumps, which may ignite spontaneously and cause air pollution.

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The impact of coal mining on the environment and community ...

The impact of coal mining on the environment and community quality of life: a case study investigation of the impacts and conflicts associated with coal mining in the Mpumalanga Province, South Africa. (Thesis). University of Cape Town ,Faculty of Engineering the Built Environment ,Department of Chemical Engineering.

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Advances in Coal Mine Ground Control ScienceDirect

Abstract. With the improvement of coal mining technology and equipment, the yield, efficiency and intensity of longwall working face increase continuously. However, the surface subsidence caused by high-intensity mining becoming more and more serious. This chapter starts with a definition for high-intensity mining and its current situation, and ...

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The Composition of Coalbed Gas

The existence of gas in coal and its release during mining has been common knowledge, probably since the beginning of coal mining. Until about the middle of the 20th century coalbed gas was considered a mixture of methane (firedamp) and carbon dioxide (blackdamp). Ethane, when detected, was

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GIS Assessment of Remaining Coal Resources with High ...

Abstract. To study coal quality and future mining costs at the coal bed level, staff at the U.S. Energy Information Administration and the U.S. Geological Survey have developed an analytic system that uses ArcView and Spatial Analyst to combine detailed geologic data, coal mining cost engineering models, and geostatistics.

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Opencast Mining - an overview ScienceDirect Topics

S.K. Chaulya, G.M. Prasad, in Sensing and Monitoring Technologies for Mines and Hazardous Areas, 2016 Abstract. Opencast mining operations involve huge quantities of overburden removal, dumping and backfilling in excavated areas. A substantial increase in the rate of accumulation of waste dumps in recent years has resulted in greater height of the dump for

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Environmental Responsibility of Coal Mining Companies and ...

Abstract. The development of coal mining in the largest Russian mining cluster - Kuzbass (Kemerovo Region, Western Siberia) is accompanied, on the one hand, by an increase in environmental issues in the form of air, water and soil pollution. The same applies to the growth of coal processing in the region - coal preparation, coke and coal ...

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Geohazards assessment in longwall coal mining using ...

Abstract. This research was conducted to focus on geohazards usually occurred in underground mining environment especially in longwall coal mining. Typical geohazards which encounter during mining and need to be identified ahead of time include rockburst, coalburst and coal/gas outburst – all of which may have a crucial impact on mining ...

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Hydrogeological and environmental impact of coal mining ...

Abstract. The Jharia coalfield is the most important and active minig region; it experiences groundwater inflow and affects groundwater levels in overlying aquifers, and it provides the basis for a conceptual model of the hydrogeological impacts of coal mining.

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4 Coal Mining and Processing Coal: Research and ...

Underground coal mining is more common east of the Mississippi River, particularly in Appalachia. Some of the largest underground coal mines, each producing around 10 million tons annually, are located in Pennsylvania and West Virginia. The largest underground mining complex in the United States produces about 20 million tons per year.

Read More
Development Status of Coal Mining in China - Abstract ...

Abstract . As a controllable active resource in China, coal mining is facing the transition from output to quality. Base d on the total mining production and average capacity, the current situation and level of coal mining at three scales of mine, city and province is analyzed , data support for the layout of sustainable mining development and ...

Read More
Hydrogeological and environmental impact of coal mining ...

Abstract. The Jharia coalfield is the most important and active minig region; it experiences groundwater inflow and affects groundwater levels in overlying aquifers, and it provides the basis for a conceptual model of the hydrogeological impacts of coal mining.

Read More
Environmental Responsibility of Coal Mining Companies and ...

Abstract. The development of coal mining in the largest Russian mining cluster - Kuzbass (Kemerovo Region, Western Siberia) is accompanied, on the one hand, by an increase in environmental issues in the form of air, water and soil pollution. The same applies to the growth of coal processing in the region - coal preparation, coke and coal ...

Read More
Environmental Impact of Coal Mining on Water Regime and ...

Abstract. Coal mining is one of the core industries that contribute to the economic development of a country but deteriorate the environment. Being the primary source of energy coal has become essen-tial to meet the energy demand of a country. It is excavated by both opencast and underground mining

Read More
COAL MINING AND THE ENVIRONMENT

Abstract The environmental impacts of coal mining in South Africa are reviewed. The primary impacts arise from mining, particularly underground mining, largely because South African coal mines are relatively shallow. Coal washing gives rises to large waste dumps, which may ignite spontaneously and cause air pollution.

Read More
The impact of coal mining on the environment and community ...

The impact of coal mining on the environment and community quality of life: a case study investigation of the impacts and conflicts associated with coal mining in the Mpumalanga Province, South Africa. (Thesis). University of Cape Town ,Faculty of Engineering the Built Environment ,Department of Chemical Engineering.

Read More
GIS Assessment of Remaining Coal Resources with High ...

Abstract. To study coal quality and future mining costs at the coal bed level, staff at the U.S. Energy Information Administration and the U.S. Geological Survey have developed an analytic system that uses ArcView and Spatial Analyst to combine detailed geologic data, coal mining cost engineering models, and geostatistics.

Read More
Composition Change Model for Sealed Atmosphere in Coal

ABSTRACT: A sealed atmosphere in a mined-out area of an underground coal mine is simply a volume with homogeneous composition governed by boundary conditions. This paper presents a mathematical model based upon the conservation of mass principle that describes the flow of air (nitrogen and oxygen), methane and carbon ...

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4 Coal Mining and Processing Coal: Research and ...

Underground coal mining is more common east of the Mississippi River, particularly in Appalachia. Some of the largest underground coal mines, each producing around 10 million tons annually, are located in Pennsylvania and West Virginia. The largest underground mining complex in the United States produces about 20 million tons per year.

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FINANCIAL ANALYSIS OF MINING PROJECTS

For Lakhanpur coal mine area, MCL the financial ratios were calculated for 2008-09 to 2010-11. Working capital, current ratio, quick ratio and cash ratio, debt ratio, debt-equity ratio and capitalization ratio were not satisfactory. So the mine may face shortage of cash due huge debts. Gross profit margin, operating profit margin,

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Utilization of wastes from coal mining and preparation in ...

Abstract. Discusses utilization of mineral wastes and mine stones from coal mines in the Donbass. Underground black coal mines in the Donbass discharge about 100 Mt mine stones per year. Mine stone storage in the basin costs 55-75 million rubles per year. From 5 to 10% of mine stones is utilized.

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[Treatment of waste water in coal mining]. - Abstract ...

To arrive at the top five similar articles we use a word-weighted algorithm to compare words from the Title and Abstract of each citation. [Prospects for the sanitary protection of the Samara river in connection with the growth of coal mining in the western Donbass region]

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Construction of Emergency Services Platform for Coal ...

Abstract — Along with the massive mining of coal resources in China, different kinds of coal mining accidents have been frequently caused, so more information supports for emergency rescue are being paid more attention.

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Coal, Cumulative Impacts, and the Great Barrier Reef

Nov 18, 2015  for a new thermal coal mine is currently being assessed for the China Stone Coal Project, adjacent to the Carmichael Coal Mine (Figure 1) and equivalent in scale. Australia is the world's fifth largest producer of coal, generating AUS$16.7 billion in thermal coal export earnings from 194.59 million tons of product in the 2013–2014 financial ...

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