Products

autoclaves associated with coal mines

MICROSEISMIC ACTIVITY ASSOCIATED WITH A DEEP

2012-8-29  MICROSEISMIC ACTIVITY ASSOCIATED WITH A DEEP LONGWALL COAL MINE K.A. Heasley, J.L. Ellenberger, and P.W. Jeran NIOSH Pittsburgh, PA ABSTRACT A deep longwall coal mine was instrumented with a three-dimensional microseismic system in order to help determine the

Occurrence and Remediation of Coal Mine Bumps: A

2012-8-30  problems associated with coal mining is the catastrophic failure of cog mine structures known as bumps. For more than 70 years, researchers and practitioners have as- sembled a wealth of technical information on coal bumps in an attempt to understand and control them. However, many technical issues raised long ago are still being

An investigation of the factors associated with

2011-3-1  While the gases desorbing during the thermal oxidation in laboratories liberate under standard conditions, which are a constant grain size of coal sample, homogenous temperature of verified coal substance, constant flow rate and concentration of oxidizing medium, constant ratio between the flow rates of oxidizing medium and weighed portion of coal sample and constant time interval of the action of oxidizing medium on the coal

Population Cancer Risks Associated with Coal Mining:

2013-8-15  Methods We performed a systematic review of English-language manuscripts published since 1980 to determine if coal mining exposure was associated with increased cancer risk (incidence and mortality). Results Of 34 studies identified, 27 studied coal mining as an occupational exposure (coal miner cohort or as a retrospective risk factor) but only seven explored health effects in surrounding

Mobility of heavy metals associated with the natural

2002-8-1  As coal mine spoils are exposed to natural weathering conditions, clay minerals can be released very quickly. It is consistent with results of previous research on these coal mine spoils which show that almost no clay and carbonate minerals exist in the Pwll Du samples (Dang et al., 1994). Metal sulfide minerals can also break down easily because they are vulnerable to oxidation when exposed

Generation of Acid Mine Lakes Associated with

AMLs can be created both during and at the end of operation of open-pit mines associated either with metal or coal mining. After flooding, a multitude of processes, e.g., precipitation of minerals, surface catalyzed reactions, oxidation, and reduction, many of which are catalyzed by microorganisms, can take place and cause the acidification of lakes (Miller et al. 1996 ; Eary 1999 ; Balci 2010 ).

Geochemistry and stable isotope investigation of acid

2010-1-15  Based on trends in specific conductance and sulfate/bicarbonate ratios in domestic water wells, Osborne et al., 1983a, Osborne et al., 1983b concluded that leakage of AMD from coal mines has most likely caused local contamination of the Madison aquifer in the Sand Coulee/Stockett area. The results of this study suggest that localized leakage may also have occurred in the vicinity of Belt,

Investigation in to the Risk Factors Associated with Roof

2019-7-1  In one of the coal mines of central India, 73 numbers of roof fall occurrences during past 10 years were analyzed. It was found that most of the roof falls occurred in the zone of major angular discontinuity, gallery junctions or near active working faces. The major risk factors associated with those roof falls were identified. The

Coal Mines Words 195 Words Related to "Coal Mines"

There are 195 coal mines-related words in total, with the top 5 most semantically related being industrial revolution, bituminous coal, coal reserves, coal and steel. You can get the definition(s) of a word in the list below by tapping the question-mark icon next to it. The words at the top of the list are the ones most associated with coal mines, and as you go down the relatedness becomes more slight.

Coal mining is associated with lung cancer risk in

While lung cancer risk has been linked to the household use of bituminous coal, no study has comprehensively evaluated the risk of lung cancer associated with the mining of this coal in Xuanwei. In Xuanwei, coal is typically extracted from underground mines, without ventilation, and transported to the surface using carts powered by manpower or

Description of coal associated diseases and coal dust

2021-3-26  Mpumalanga coal mines over the period 2003 to 2006 and (2) to describe the burden of coal-associated diseases reported by autopsy examinations received from NIOH Pathology Department and in the SAMODD data base in Mpumalanga coal mines over the period 2002 to 2006.

Blasting in Underground Coal Mines

2020-10-10  Blasting in Coal Mines •Modern mechanised coal mines use machines and longwall mining methods to cut solid coal and convey the broken coal out of underground workings. •Continuous mining equipment has escalated coal production and introduced more effective and efficient coal

COAL MINES ASSOCIATED TRADERS PVT LTD

2021-6-16  Coal Mines Associated Traders Pvt. Ltd. (Prevoiusly names as Coal Mines Associated Traders, a part of "DE GROUP") is one of the premier Construction House in Eastern India, a company incorporated under Companies Act 1956 having its Regd. Office at 18A, Park Street, 6-0/1, Stephen Court, Kolkata 700 071 and Administrative Office at M.G. Road, P.O.: Ukhra-713 363, Dist: Burdwan

Geochemistry and stable isotope investigation of acid

2010-1-15  The Great Falls-Lewistown Coal Field produced sub-bituminous to bituminous coal from large underground mines in the late 19th and early 20th centuries (Fisher, 1909).The largest mines were located near the western edge of the district near the towns of Belt and Stockett (Fig. 1, Fig. 2), and it is in this region that the most serious environmental problems have occurred.

Generation of Acid Mine Lakes Associated with

AMLs can be created both during and at the end of operation of open-pit mines associated either with metal or coal mining. After flooding, a multitude of processes, e.g., precipitation of minerals, surface catalyzed reactions, oxidation, and reduction, many of which are catalyzed by microorganisms, can take place and cause the acidification of lakes (Miller et al. 1996; Eary 1999; Balci 2010).

Investigation in to the Risk Factors Associated with Roof

2019-7-1  In one of the coal mines of central India, 73 numbers of roof fall occurrences during past 10 years were analyzed. It was found that most of the roof falls occurred in the zone of major angular discontinuity, gallery junctions or near active working faces. The major risk factors associated with those roof falls were identified. The

The Benefits and Challenges Associated With Coal in

2014-12-5  Associated With Coal in South Africa FIGURE 1. South African commodity summary for total sales in Rands (ZAR) 46 49 5 3 6 9 77 57 91 58 74 84 6 4 22 27 43 62 5 63 73 65 71 88 96 100 0 20 40 60 80 100 120 Coal has become to South Africa what oil is to the countries of the Middle East—the basis of its economy as the primary source of

WATER PROBLEMS ASSOCIATED WITH UNDERSEA COAL

2009-9-17  Coal mining under the sea has been carried out in many different parts of the world. The first consideration associated with undersea mining or for that matter under bodies of water or under sub-surface aquifers, is to limit disturbance of the strata above the working faces, in order to prevent water entering the working areas.

Judge orders US officials to weigh coal mine's climate

2021-2-4  BILLINGS, Mont. (AP) — A judge says U.S officials downplayed climate change impacts and other environmental costs from the expansion of a massive coal mine near the Montana-Wyoming border, in a case that could test how far the Biden administration is willing

COAL MINES ASSOCIATED TRADERS PVT LTD

2021-6-16  Coal Mines Associated Traders Pvt. Ltd. (Prevoiusly names as Coal Mines Associated Traders, a part of "DE GROUP") is one of the premier Construction House in Eastern India, a company incorporated under Companies Act 1956 having its Regd. Office at 18A, Park Street, 6-0/1, Stephen Court, Kolkata 700 071 and Administrative Office at M.G. Road, P.O.: Ukhra-713 363, Dist: Burdwan

Description of coal associated diseases and coal dust

2021-3-26  Mpumalanga coal mines over the period 2003 to 2006 and (2) to describe the burden of coal-associated diseases reported by autopsy examinations received from NIOH Pathology Department and in the SAMODD data base in Mpumalanga coal mines over the period 2002 to 2006.

Investigation in to the Risk Factors Associated with Roof

2019-7-1  In one of the coal mines of central India, 73 numbers of roof fall occurrences during past 10 years were analyzed. It was found that most of the roof falls occurred in the zone of major angular discontinuity, gallery junctions or near active working faces. The major risk factors associated with those roof falls were identified. The

Resources Regulator publication

2020-7-1  An operator of an underground coal mine has a number of legislative requirements under Work Health and Safety (Mines and Petroleum Sites) Regulation 2014 with respect to operating diesel equipment underground. What are these requirements and associated limitations? (20 marks) UB2 Coal mine ventilation Written examinations held 15 October 2019

From coal, a new source of rare earths C&EN

2018-7-8  Active coal mines are required to treat acid mine drainage before the water can be discharged into streams and rivers. They must remove iron, aluminum, and manganese and bring the pH up to 6 to 9.

The social and environmental impact of mining in the ACP

2012-8-16  new gold mines have been exploited, including Ghana, Mali, Guinea, Burkina Faso, Mauritania and Ivory Coast1. The speed at which the consequences of human actions affect society and the environment requires a fast response. SOCIAL IMPACT The modes of mining and the lack of regulation of waste management are among the

Reducing injury risks associated with underground coal

2010-10-13  for assessing injury risks associated with ergonomics aspects of underground coal mining equipment. De-identified text describing all incidents reported by underground coal mines in NSW during the 3 years to June 30, 2008 were obtained from Coal Services.

Mines Archives Our Warwickshire

Holly Park Mine. Holly Park Mine, the site of a possible mine where coal would have been extracted during the Post Medieval period. The site lies south of Merevale Lane. View more historic sites. Explore Mines around Warwickshire.

MANAGING THE GEOTECHNICAL RISK ASSOCIATED

2006-3-22  MANAGING THE GEOTECHNICAL RISK ASSOCIATED WITH HIGH AND LOW WALLS AT ANGLO COAL’S OPEN PIT MINES. Gift Makusha & Dave Minney Anglo Coal Limited SYNOPSIS Anglo Coal South Africa mines coal for both the domestic and export market using open cast and strip mining methods. To establish a mine, a process is set in place to gather ever increasing

ORIGINAL ARTICLE Small mine size is associated with

2014-8-6  Small mine size is associated with lung function abnormality and pneumoconiosis among underground coal miners in Kentucky, Virginia and West Virginia David J Blackley,1,2 Cara N Halldin,1 Mei Lin Wang,1 A Scott Laney1 1Surveillance Branch, Division of Respiratory Disease Studies, National Institute for Occupational Safety and Health, Centers