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(PDF) Environmental impact of coal mining: a case study on ...

(PDF) Environmental impact of coal mining: a case study on ...

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mine drainage as well as mining process is now Sample Collection: Coal, water and soil samples were threatening to the local agricultural economy [19, 20]. collected from in and around the study area with three Hence, the present study was aimed at finding out replies for each (Fig. 2).

Frontiers | Microbial Communities Associated With Passive ...

Frontiers | Microbial Communities Associated With Passive ...

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Aug 23, 2019 · Acid mine drainage (AMD) is an environmental issue that can be characterized by either acidic or circumneutral pH and high dissolved metal content in contaminated waters. It is estimated to affect roughly 3000 miles of waterways within the state of Pennsylvania, with half being acidic and half being circumneutral. To negate the harmful effects of AMD, ∼300 passive remediation systems have ...

Assessment of carbon sequestration potential of ...

Assessment of carbon sequestration potential of ...

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Jul 08, 2017 · Development of secondary forest as postmining land use in the surface coal mining degraded sites is of high research interest due to its potential to sequester atmospheric carbon (C). The objectives of this study were to assess the improvement in mine soil quality and C sequestration potential of the postmining reclaimed land with time.

Abiotic Factors

Abiotic Factors

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This is an example of acid mine drainage. Water is affected by coal as an energy source because of two primary reasons. First, coal burning leads to acid mine drainage. This happens when the mining process exposes the sulfides to water and air, together they form sulfuric acid. This acid mine drainage often flows into streams and rivers.

Lung Diseases in Surface, Underground Coal Mining and ...

Lung Diseases in Surface, Underground Coal Mining and ...

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When the new continuous mining (tall machines) cut the coal from these seams–they remove 12 16 inches of sandstone adjacent to the coal seam. This silica dust from sandstone mixes with the coal dust generated by this process. Mining machines equipped with water sprays do decrease airborne dust levels.

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View from ENG 86987 at St. John's University. Fossil Fuel Coal: Coal is a fossil fuel created from the remains of plants that lived and died about 100 to 400 million years ago when parts of the

Hazards identified and the need for health risk assessment ...

Hazards identified and the need for health risk assessment ...

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Nov 26, 2015 · Although mining is a cornerstone of the South African economy (), it generates copious amounts of dust. 1 The dusts may be toxic since they may also be contaminated with various toxic this reason, the prevalence and severity of occupational diseases in the mining industry depends on the ores mined, the contaminants present and also on the levels and duration of exposure .

Analysis on the Characteristics of Water Pollution Caused ...

Analysis on the Characteristics of Water Pollution Caused ...

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May 19, 2021 · Coal is the primary source of energy in China's energy structure system. With the largescale mining of mineral resources, a large amount of mine water will be produced in the process of development, construction, and production, which will pollute and damage the ecological environment of mine water. At present, China vigorously advoes coal revolution, implements lowcarbon .

Reclamation of Soils Degraded by Surface Coal Mining ...

Reclamation of Soils Degraded by Surface Coal Mining ...

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Aug 18, 2020 · The largest Brazilian coal mine, called Candiota mine, is loed in South Brazil, with an estimated reserve about billion tons. Since late 2003, an experiment loed at a reclaimed site in a coal mining area was conducted, in which a research group from the Federal University of Pelotas has been conducting a longterm experiment on soil quality with different plants species, such as ...

Hazards identified and the need for health risk assessment ...

Hazards identified and the need for health risk assessment ...

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Nov 26, 2015 · Although mining is a cornerstone of the South African economy (), it generates copious amounts of dust. 1 The dusts may be toxic since they may also be contaminated with various toxic this reason, the prevalence and severity of occupational diseases in the mining industry depends on the ores mined, the contaminants present and also on the levels and duration of exposure .

Abiotic Factors

Abiotic Factors

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This is an example of acid mine drainage. Water is affected by coal as an energy source because of two primary reasons. First, coal burning leads to acid mine drainage. This happens when the mining process exposes the sulfides to water and air, together they form sulfuric acid. This acid mine drainage often flows into streams and rivers.

Terrestrial Carbon Losses from Mountaintop Coal Mining ...

Terrestrial Carbon Losses from Mountaintop Coal Mining ...

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Alternatively, scenarios of forest sequestration due to the offsetting effects of CO 2 fertilization and enhanced soil respiration result in a 15% to 24% loss in terrestrial carbon stocks by the year 2100 for mining scenarios relative to scenarios with no future mining.

Assessment of the microbial community in a constructed ...

Assessment of the microbial community in a constructed ...

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Jan 15, 2006 · article{osti_, title = {Assessment of the microbial community in a constructed wetland that receives acid coal mine drainage}, author = {Nicomrat, D and Dick, W A and Tuovinen, O H}, abstractNote = {Constructed wetlands are used to treat acid drainage from surface or underground coal mines. However, little is known about the microbial communities in the receiving .

Coal mining

Coal mining

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Coal mining is the process of extracting coal from the ground. Coal is valued for its energy content and since the 1880s has been widely used to generate electricity. Steel and cement industries use coal as a fuel for extraction of iron from iron ore and for cement production. In the United Kingdom and South Africa, a coal mine and its structures are a colliery, a coal mine is called a 'pit ...

Coal Mining and Local Environment: A Study in Talcher ...

Coal Mining and Local Environment: A Study in Talcher ...

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Coal mining and air pollution. In the era of 21st century, this belt has become an industrial hub. Along with MCL, a good number of coalbased thermal power plants, several heavy industries, coal washeries, and a large number of subsidiary industrial units have come up in the area.

What Is the Carbon Cycle? Photosynthesis, Decomposition ...

What Is the Carbon Cycle? Photosynthesis, Decomposition ...

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Dec 18, 2017 · Decomposition is the process of breaking down plants. Over vast periods of time, layers of sediment build on each other. Because of the pressure and heat from within the Earth's crust, this generates fossil fuels. Much of this happened during the Carboniferous Era. For example, coal, oil, and natural gas (methane) are some of the common ...

The Carbon Cycle

The Carbon Cycle

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The Slow Carbon Cycle. Through a series of chemical reactions and tectonic activity, carbon takes between 100200 million years to move between rocks, soil, ocean, and atmosphere in the slow carbon cycle. On average, 10 13 to 10 14 grams (10–100 million metric tons) of carbon move through the slow carbon cycle every year.

Analysis of Physical, Chemical, and Biological Soil ...

Analysis of Physical, Chemical, and Biological Soil ...

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This research was conducted in reclaimed post coal mining lands of PT Berau Coal Site Binungan, East Kalimantan Province (aged 0, 3, 6, and 9 years), and native forest. Soil analysis performed at the Laboratory of Chemical and Soil Fertility, Laboratory of Soil Physics, and Laboratory of Soil Biotechnology, Department of Soil Science and Land ...

: Coal

: Coal

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Jun 19, 2021 · Pollution from Coal Burning. In the United States and most of the world, most of the coal consumed is used as a fuel to generate electricity. Burning coal produces emissions such as sulfur dioxide (SO 2) and nitrogen oxides (NO x) that are associated with acid rain (more on this in chapter 6). Carbon dioxide (CO 2), another emission resulting from burning coal, is a major greenhouse gas that ...

What is rat hole mining?

What is rat hole mining?

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Jan 23, 2014 · Rat hole mining is a term used in coal mining and is so named because of its name during colonial times, the sistema del rato, and because of .

Final Rule

Final Rule

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The standards require coal mine operators to continuously maintain the average concentration of respirable dust to which each miner is exposed during each shift at or below milligrams per cubic meter of air ( mg/m3) (30 CFR, underground coal mines; and, surface coal mines and surface areas of underground coal mines).

Strip Mining

Strip Mining

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Haldar, in Mineral Exploration, 2013 Shallow Deposits. Strip mining process is most suitable for fairly flat shallow singleseam coal, lignite and other bedded deposits. The mineral layer is covered by an even thickness of overburden composed of soft topsoil and weathered rocks in succession.