In current market conditions the most important determinants of coal mining enterprises are sale revenues H4 Financial and investment determinants such as cost of capital (A) and beta coefficient (B) do not have as significant of an influence on coal mining enterprise value as operating factors (operational costs and revenues)
Coal mining affects the environment in several ways underground coal mining introduces toxins such as methane gas into waterways and the atmosphere and surface coal mining contributes to deforestation and erosion Coal mining displaces large amounts of water which in turn alters local water tables
Jun 01 2018Therefore according to the actual geological characteristics of the mining face under the influence of a mining area's reverse fault the distribution law of the supporting pressure in the coal seam direction is analyzed in this paper (Sudhakaran et al 2018 Guan Leong et al 2018)
Mining and burning coal for fuel is harmful to the environment but because coal is so abundant and cheap many people are reluctant to give it up as a fuel source Coal starts as peat or sections of partially decomposed organic matter that accumulate on
Effects of coal mining on water quality in the more arid western half of the United States are more difficult to detect because of the high degree of mineralization of natural water Normal background concentrations of constituents are not useful in evaluating effects of coal
241 The Influence of Coal Physical and Mechanical Properties and Mining Energy Consumption Factor on Airborne Respirable Dust Level Antoni Koziel 1 Malgorzata Malec 1 and Ewa Wardas2 1KOMAG Mining Mechanization Centre 44-101 Gliwice Poland 2Rybnicka Coal Joint Stock Co 44-253 Rybnik Poland ABSTRACT
The influence of coal was so pervasive in the United States that by the advent of the twentieth century it became a necessity of everyday life In an era where smokestacks equaled progress the smoky air and sooty landscape of industrial America owed a great deal to the growth of the nation's coal industry Since most antebellum coal
underground coal mines is an important step to meet the challenge of climate change diverse energy supplies and enhance the safety performance and mining management Generally CMM control techniques for a specific un-derground coal mine depend on the geological and mining conditions For a typical coal mine methane in ventilation
The micro‐organisms in pumped water from the actively mined areas as well as pre‐ and post‐mining formation waters were analyzed using 16S rRNA gene amplicon sequencing The methane stable isotope composition of Bowen Basin coal seam indicates that methanogenesis has occurred in
Jul 11 2015Mining is the extraction of valuable minerals or other geological materials from the earth from an ore body lode vein seam or reef which forms the mineralized package of economic interest to the miner The following are factors that influence the development of mining sector Availability of capital to be invested in mining Nature of transport system Availability of labour both skilled and
Surface mining output of coal exceeded that from underground mines from 1957 through 2006 Since 2007 the underground coal production has surpassed that from surface mining again 4 From 1880 to 1920 coal ranked first in the value of Arkansas' mineral and fuel output but since 1922 the value of oil has exceeded that of coal
The social and environmental consequences of coal mining in South Africa A case study Cape Town Environmental Monitoring Group Effects of gases and particles and the influence of cause of death age and season Journal of the Air and Waste Management Association 52 pp 470–484
Get this from a library! Water use in the coal mining industry and its influence on ground water in western Canada [William B Barrie C H Carr] -- Coal production in Canada has increased dramatically since 1970 and although growth slowed unexpectedly during the early 1980s most experts estimate that production will increase twofold by the
It's a network centered around the world's biggest coal companies involving some of the wealthiest and most well-connected people in Australia who use established relationships within industry groups lobbying and sections of the media to influence decisions at the highest level
Nov 01 2019Coal is an abundant fuel source that is relatively inexpensive to produce and convert to useful energy However producing and using coal affects the environment Effects of coal mining Surface mines (sometimes called strip mines) were the source of about 63% of the coal mined
The potential benefits that mining brings to a community can be undermined if secrecy surrounds the payment of mining taxes to the government or the benefits shared at the local level The gendered impacts of mining Our work shows that the impacts of mining are not gender neutral Women often experience the negative impacts of mining more than
Apr 25 2017What Is The Environmental Impact Of The Mining Industry? Water pollution loss of biodiversity soil erosion and pollution and formation of sink holes are among the worst effects of the mining industry on the environment Mines are known to cause severe environmental problems
Abstract Buried pipelines influenced by coal mining subsidence will deform and generate additional stress during surface deformation On the basis of the coordinating deformation relationship between buried pipeline and its surrounding soils a stress analysis method of a buried pipeline induced by mining
Threats To Wildlife From Coal Mining Surface mining of coal is the method resorted to by the industry when coal deposits are found just below the Earth's surface This happens to be the most used mining methodology of coal world over and has a direct and negative effect on ecosystems environment and wildlife of places where such activity is
Coal mining has been practiced in the United States since 1000 A D when the Hopi Tribe (of what is now the northeastern corner of Arizona1) used coal to bake their pottery 2 However modern commercial coal usage began in 1748 where Huguenot settlers at Manakin ia began forming mines 3 In 1901 General Electric built the first
Coal mining in different coalfields in South Africa is known for decades (≈146 years) and its economic importance to the country has recently surpassed commodities such as gold One of the Coalfield that is well known for coal production in the Limpopo province of South Africa is Pafuri Coalfield where
Jan 29 2014Given that Jharkhandis gained independence from Bihar in 2000 with the explicit desire to control extraction of the region's natural resources most critically its mineral resources it is helpful to look at both states to determine if the coal mining districts (which are found in Jharkhand) experience a statistically lower measure of socio
The most direct influence of coal mining on water resources is the destruction of hydrologic and geologic environment Coal mining can cause formation of mine pit Correspondingly the rock mass around the site can generate stress distribution which results in upper rock mass deformation displacement and destruction as reflected by visual
Jun 25 2016The influence of the mining and energy industry on election campaigns This leads us to ask serious questions about the influence that mining and energy companies have on major political parties during election campaigns There is some variation in which particular mining companies are favoured by particular parties
Coal mining has been practised in some parts of the world notably western Europe for centuries and this type of mining has evolved over time as mines became deeper and larger Today coal is worked primarily by room-and-pillar and by longwall methods
Oct 13 2010Coal mining Mine collapse Historically coal mining was a very dangerous undertaking for those involved Underground coal mines were prone to collapse with the potential to harm miners The modernization of the coal mining industry has drastically reduced this risk
Nov 08 2019Previous studies have associated elevated mortality risk in central Appalachia with coal-mining activities but few have explored how different non-coal factors influence the association within each county Consequently there is a knowledge gap in identifying
Jul 31 2013For coal deposits like most other minerals drilling is a key to identifying in detail the grade and size of the resource both prior to mine development and during operations Mining operations employ a variety of drilling methods based on the requirements of the project
BSR | Adapting to Climate Change A Guide for the Mining Industry 3 Anglo Platinum Rising temperatures will increase energy demand to cool underground mines and surface facilities Greater demand and rising prices (driven by limited supply of natural gas the imposition of carbon taxes and expensive alternative energy sources) will add to costs
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