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acid mine drainage from open cast coal mining

Open-pit mining - Wikipedia

Open-pit mining, also known as open-cast or open-cut mining and in larger contexts mega-mining, [1] is a surface mining technique of extracting rock or minerals from the earth from an open-air pit, sometimes known as a borrow . This form of mining differs from extractive methods that require tunnelling into the earth, such as long wall mining.

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Geochemical characterization of mine overburden strata for strategic ...

Most of the coal production in India comes from open cast mines contributing over 81% of the total production. ... Geochemistry of acid mine drainage from a coal mining area and processes controlling metal attenuation in stream waters, southern Brazil. V. P. Campaner, W. Luiz-Silva, W. Machado;

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Mine Drainage Technology Initiative (MDTI) | Office of Surface Mining ...

AMD or acid rock drainage (ARD), collectively called acid drainage (AD), is acidic water (pH less than 5.0), laden with iron, sulfate and other metals, that forms when geologic strata containing sulfide minerals such as pyrite are exposed to the atmosphere or oxidizing environments. AMD can form from coal mining, both in surface and in ...

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The reuse and recycling of coal mining waste with zero-waste approach ...

If the gangue is exposed to air and piled on land, it will pollute the environment considerably. Waste coal piles leach toxic metals—such as iron, manganese, aluminium, mercury and arsenic into waterways—and cause acid drainage that kill neighbouring aquatic ecosystems. These piles sometimes even catch fire through spontaneous combustion.

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Pengelolaan air asam tambang kegiatan pertambangan batubara terbuka dan ...

X, Kabupaten Murung Raya, Provinsi Kalimantan Tengah) = Acid mine drainage management of open pit coal mining activities and possibility impact on skin health of river water-users community (a study in PT. X, Murung Raya District,Central Kalimantan Province) / Rio Febrianto Nomor Panggil: T49193: Pengarang

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COAL MINING - The Economic Times

According to a senior official, once production starts from Tirap OCP (open cast project) of North Eastern Coalfields in Assam, the mine will add 0.6 million tonnes (MT) of coal supplies. He further said that the company is also in the process of getting clearances for Tikak OCP in the state which will produce 0.2 MT of coal.

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Being realistic about coal mine rehabilitation in Indonesia: An ...

We splashed through large puddles colored saffron from acid mine drainage. High mounds of red soil, piled like landfills, with broken tree trunks and large rocks scattered throughout, marked by signs that read "stock topsoil," were waiting to be dumped back into the pit once the coal resource was exhausted.

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Coal mining | Article about coal mining by The Free Dictionary

Strip mining is the process in which the overburden (earth and rock material overlying the coal) is removed to expose a coal seam or coal bed. Excavators either dispose of the overburden or store the waste material for replacement after the coal has been extracted. Once exposed, the coal is usually removed in a separate operation.

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Environmental impact of an opencast operation in the Forest of Dean ...

@article{osti_6401020, title = {Environmental impact of an opencast operation in the Forest of Dean, England}, author = {Addis, M C and Simmons, I G and Smart, P L}, abstractNote = {An inexpensive method of monitoring the water quality and quantity of the discharge from an opencast coal site in the United Kingdom during 1978-79 is described.

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Making Money after Mining: Farming on Rehabilitated Open Cast Mines ...

Open cast mining not only causes a great deal of physical damage to the land, as seen in Figure1, but it can also cause chemical damage. 3,4,5 This damage has the potential to be long term and irreversible, and while this could imply that post-mining agricultural activities might not be profitable, to date, there is no evidence to support this.

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12 Environmental Effects of Coal Mining - Environment 911

Coal mining is a loud, day- and night-long process that disrupts the lives of those in the surrounding communities, reduces the quality of life and can go on for decades. #11 Loss Of Wildlife. Coal mining requires a large expanse of territory. When a mining operation moves in, it invades and destroys sizable ranges of wilderness area ...

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Acidic Mining Lakes: Acid Mine Drainage, Limnology and ... - Alibris

Buy Acidic Mining Lakes: Acid Mine Drainage, Limnology and Reclamation by Walter Geller (Editor), Helmut Klapper (Editor), Wim Salomons (Editor) online at Alibris. ... Inland Water Research of the UFZ-Centre for Environmental Research in Magdeburg on the limnology of lakes created by open-cast lignite mining, emphasizing the often observed ...

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Acid mine drainage control in an opencast coal mine

Acid mine drainage control in an opencast coal mine A Jamal, BB Dhar & S Ratan Mine Water and the Environment 10, 1-16 ( 1991) Cite this article 192 Accesses 20 Citations Metrics Download to read the full article text References Beston, P. R., 1987, Coal and coal mine drainage, J Water Pollution Control, Feb. Vol. 58, No. 6, pp 566-571.

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Coal and Water Pollution | Union of Concerned Scientists

Coal mining. Mining operations can negatively impact water supplies, often with long-lasting effects. The fundamental issue involves contamination of nearby rivers, lakes, and aquifers by what comes out of a coal mine—usually highly acidic water containing heavy metals like arsenic, copper, and lead. The process is known as acid mine drainage.It happens when certain substances (typically ...

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Carolina: Living in a town with acid water - The Mail & Guardian

A rail siding up the valley from the dam is piled high with coal. There are no walls stopping the coal from being washed away. This is what locals say is a major cause of acid mine drainage.

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Coal-mining | Article about Coal-mining by The Free Dictionary

Strip mining is the process in which the overburden (earth and rock material overlying the coal) is removed to expose a coal seam or coal bed. Excavators either dispose of the overburden or store the waste material for replacement after the coal has been extracted. Once exposed, the coal is usually removed in a separate operation.

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An Evaluation of the Potential Use of Microbial Fuel Cells for Energy ...

An Evaluation of the Potential Use of Microbial Fuel Cells for Energy Production and Simultaneous Acid Mine Drainage Treatment September 2022 Water Air and Soil Pollution 233(10)

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(Pdf) Environmental Impact of Coal Mining on Water Regime and Its ...

Keywords: acid mine drainage, coal mining, environmental impact, leachate characteristics, man- agement, water quality 1. Introduction In the process of development, coal mining is a major industry, which is contrib- uting inadvertently towards the pollution of the environment. ... In the case of open cast mines groundwater, rainwater and ...

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Acid mine drainage from coal mining in the United States - An overview ...

Sep 1, 2020The main sources of AMD include runoff and seepage from mine rock dumps, open pit mines, stockpiles, tailings, construction rocks, and rock cuts. ... Use of high-resolution satellite imagery for investigating acid mine drainage from artisanal coal mining in north-eastern India. Geocarto Int., 27 (3) (2012), pp. 231-247. CrossRef View Record in ...

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Draining the depths - Mining Technology

The December 2010 report entitled Mine Water Management in the Witwatersrand Gold Fields with Special Emphasis on Acid Mine Drainage explains that AMD "is formed by a series of chemical reactions that occur between water, sulphide minerals, such as pyrite and oxygen, which combine to form an iron-rich sulphuric acid solution. This will occur ...

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Long term mine site rehabilitation studies at Stockton open cast coal-mine

Long term mine site rehabilitation studies at Stockton open cast coal-mine (1997) View/ Open. Alarcon_1997_thesis.pdf (74.96Mb) Coal Corp of NZ - Geotechnical Map.jpg (8.848Mb) Coal Corp of NZ - Hydrogeotechnical Map.jpg (4.014Mb) Type of Content

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(PDF) Environmental Quality of Coal Mine - Academia.edu

Coal is the main energy source of developing and under developing countries which is a virtue. In other side this coal deposits produces high amount of acid mine drainage (AMD) which is a vice for the environment of those countries as it reduces soil

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Acid Mine Drainage Index (AMDI): a benthic invertebrate biotic index ...

Acid mine drainage (AMD) is a widespread phenomenon globally. Drainage into streams from coal mines often contains a cocktail of acidic waters high in dissolved metals, and consequently stream invertebrate communities may be severely impacted.

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Impact of Opencast Coal Mining on the Quality of Surfacewater ...

The major impact of open cast coal mining are degradation in the water quality due to acid mine drainage, toxic pollutants and change in hydrology and disturbance in groundwater table which results into lowering of ground water table leading to reduced yield of water from the bore-wells. Ghosh [2], Sridharan [3],

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Study: Acid mine drainage can help clean up, recycle fracking ...

Acid mine drainage flows out of abandoned coal mines into many streams in the Appalachian Basin. It can be highly toxic to animals, plants and humans, and affects the quality of hundreds of ...

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Influence of open cast mining on the soil properties of Ledo ... - IJSRP

The physico-chemical properties of the disturbed coal mine dump soil and undisturbed forest soil is presented in Table I. The comparative analysis indicated that the open cast coal mining altered native soil characteristics. The heterogeneous and altered soil characteristics of coal mine dumps were also reported by Boruvka et al. (2010).

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The Social and Environmental Consequences of Coal Mining in South ...

The largest water quality problem associated with coal mining is undoubtedly acid mine drainage (AMD). Acid mine drainage consists of three interrelated problems: first, the pyrite in the rock gives rise to water with a low pH.

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Top 9 Effects of Mining on the Environment

Acid mine drainage, which may burn human skin and kill fish and aquatic species, can be 20 to 300 times more acidic than acid rain. The water in the Richmond Mine in California was some of the most acidic water ever observed. The water had been known to catch fire and was more corrosive than battery acid.

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What Is Open-Pit Mining? Definition and Environmental Impact - Treehugger

Jul 26, 2022With or without heavy metals, acid water drainage is catastrophic to aquatic wildlife. 13 The water pollution created by open-pit mining is typical throughout the mining industry. Coal and other...

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Coal Mine Waste High Resolution Stock Photography and Images - Alamy

The Mine 33 site contains 40,000,000 tons of coal mine waste generated by the former Bethlehem mine that operated from the 1960s to the 1990s. President-elect Donald Trump promised repeatedly throughout his campaign that he would revive the coal industry, billing himself as the "last shot for the miners.".

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Impacts of mining on environment - SlideShare

ACID DRAINANGE Outflow of acidic water from metal mines or coal mines. This toxic water leaks out of abandoned mines to contaminate groundwater, streams, soil, plants, animals and humans. As a result an orange color can blanket the river, sea and kill aquatic life and making surface water unusable as drinking water. 10.

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Acid Mine Drainage Index (AMDI): a benthic invertebrate biotic index ...

(2012). Acid Mine Drainage Index (AMDI): a benthic invertebrate biotic index for assessing coal mining impacts in New Zealand streams. New Zealand Journal of Marine and Freshwater Research: Vol. 46, No. 3, pp. 335-352.

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Reclamation of Degraded Landscapes due to Opencast Mining

As a result of these chemical changes, groundwater becomes highly ferruginous and often has a low pH value, and hence it is referred to as acid mine drainage, which can be toxic due to high values of sulphate and increased levels of heavy metals.

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Effectivenes of lime kiln flue dust in preventing acid mine drainage at ...

@article{osti_98659, title = {Effectivenes of lime kiln flue dust in preventing acid mine drainage at the Kauffman Surface Coal Mine, Clearfield County, Pennsylvania}, author = {Rose, A W and Parizek, R R and Phelps, L B}, abstractNote = {A careful test of alkaline addition combined with special handling has been performed during mining of 27 acres of coal overlain by slightly to moderately ...

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Assessing aluminium toxicity in streams affected by acid mine drainage ...

Acid mine drainage (AMD) has degraded water quality and ecology in streams on the Stockton Plateau, the site of New Zealand's largest open-cast coal mining operation. This has previously been attributed largely to the effects of acidity and elevated aluminium (Al) concentrations.

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Ohio acid mine drainage | The Pop History Dig

On December 15, 1970, Ben Franklin, a reporter with The New York Times, did a story on strip mining that his editors ran on the front page with a photo of a ravaged Ohio strip mine scene. "Strip-Mining Boom Leaves Wasteland in Its Wake," was the headline. Franklin filed his story from St. Clairsville, Ohio.

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Coal mining, flooding threats for Hwange game reserves

"Potential sources of acid mine drainage include surface run-off from open-cast mines, seepage from leach ponds, run-off from residue dumps and drainage from underground mines. "Water quality...

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Battles over Uranium Coal and Gold Mining - Environment News South Africa

Plans for an open cast coal mine on the border of Hluhluwe-iMfolozi Park, home to the largest population of the once endangered white rhino in the world, may bring economic development but they will also worsen air and water quality and increase poaching and crime. Jeff Barbee reports from South Africa. Ecuador,

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Mining Dictionary | Protect Ecuador

Acid Rock Drainage (ARD) is a natural process whereby sulphuric acid is produced when sulphides in, rocks are exposed to air and water. Acid Mine Drainage (AMD) is essentially the same process, greatly, magnified. HEAVY METAL CONTAMINATION & LEACHING, Heavy metal contamination and leaching occurs when the metals contained in excavated rock or,

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What Is Open-Pit Mining? Definition and Environmental Affect

Particularly problematic when it comes to coal mining, acid mine drainage can proceed for centuries, even lengthy after the mine has closed. Acid Water Drainage Air pollution, Arguably, "acid water drainage" will have to be grouped with water air pollution, however on this case, it isn't mining and even mill processes that create the issue.

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