what are the two ways to remove coal from the ground


  • what are the two ways to remove coal from the ground

    Coal is extracted principally in two ways: ... method of taking coal from the ground. ... top removal mining is used to recover coal buried at or near ... Underground Mining - ThinkQuest It is safer than the old kind of mining that we described on our coal mine tour page.


  • Coal Types, Formation and Methods of Mining - …

    Coal is an organic sediment consisting of a complex mixture of substances.. Depending upon the evolutionary developmental phase of coal formation there are: Four kinds of coal. The first evolutionary phase is peat which is little more than wood pulp that has been badly decomposed.


  • what are the two ways to remove coal from the ground

    Coal Mining and Transportation, Coal miners use two primary methods to remove coal, Processing coal After removing the coal from the ground, Extraction and Processing of …


  • COAL -- A Fossil Fuel - Lehigh University

    Coal miners use giant machines to remove coal from the ground. They use two methods: surface or underground mining. Many U.S. coal beds are very near the ground's surface, ... The coal industry has found several ways to reduce sulfur, nitrogen oxides, and other impurities from coal. They have found more effective ways of cleaning coal …


  • Chapter 2: The Environmental Effects of Strip Mining - The ...

    In contrast to more traditional techniques, longwall mining uses powerful coal extraction machinery and hydraulic lifts to remove the entire coal seam during the initial mining operation. A cutting machine shaves coal from the face of the seam while hydraulic lifts support the roof near the working face.


  • Contaminants Found in Groundwater, USGS Water Science School

    Contaminants Found in Groundwater ... coal, and petroleum and enters the ground and: Causes acute and chronic toxicity; can cause damage to lungs and bones. Possible carcinogen. Cadmium: Found in low concentrations in rocks, coal, and petroleum and enters the groundwater and surface water when dissolved by acidic waters. May enter the ...


  • coal - National Geographic Society

    Coal is a non-renewable fossil fuel that is combusted and used to generate electricity. Mining techniques and combustion are both dangerous to miners and hazardous to the environment; however, coal accounts for about half of …


  • Coal - University of Colorado Boulder

    There are two ways to remove coal from the ground: surface mining and underground mining. Surface mining is used when a coal seam is relatively close to the surface, usually within 200 feet. The first step in surface mining is to remove and store the soil and rock covering the coal (called the "overburden").


  • COAL -- A Fossil Fuel - Lehigh University

    Coal miners use giant machines to remove coal from the ground. They use two methods: surface or underground mining. Many U.S. coal beds are very near the ground's surface, ... The coal industry has found several ways to reduce sulfur, nitrogen oxides, and other impurities from coal. They have found more effective ways of cleaning coal before it ...


  • Chapter 2: The Environmental Effects of Strip Mining - …

    In contrast to more traditional techniques, longwall mining uses powerful coal extraction machinery and hydraulic lifts to remove the entire coal seam during the initial mining operation. A cutting machine shaves coal from the face of the seam while hydraulic lifts support the roof near the working face.


  • Lesson Plan | Fossil Fuels: Chocolate Chip Mining

    Mining is the process of extracting coal, oil, and natural gas from the ground. Strip mining (also known as open cast, mountaintop, or surface mining) involves scraping away earth and rocks to get to coal buried near the surface (Greenpeace, 2010).


  • Coal Mining Methods - EMFI

    Coal Mining Methods Underground Mining Longwall & Room and Pillar Mining Longwall mining and room-and-pillar mining are the two basic methods of mining coal underground, with room-and-pillar being the traditional method in the United States. Both ... ground stability than the three-entry systems


  • Acid Mine Drainage - Ground Truth Trekking

    A significant number of coal mines also suffer from acid mine drainage. ... There are three basic ways to limit acid mine drainage; prevent sulfuric acid from forming, neutralize the acid after it forms, or collect runoff/seepage to contain the acid. ... Ground Truth Trekking ...


  • How is coal removed from the ground? - Brainly.com

    Machines are used to remove coal from the ground, there are two ways, one of them implies surface mining, where they dig the dirt, then filter it to find coal, the second way implies underground mining, where workers go deep down, to find coal.


  • Coal Mining and Processing | Energy Trends Insider

    Coal miners use giant machines to remove coal from the ground. They use two methods: surface or underground mining. Many U.S. coal beds are very near the ground's surface, and about two-thirds of coal production comes from surface mines.


  • How To Remove Rust from Metal | The Family Handyman

    And that's why we're going to show you the five ways how to remove rust from metal—three methods to remove it and two steps to prevent it from coming back, along with the …


  • How Did We Get All This Coal? | Answers in Genesis

    The USA has more than seven trillion tons of coal reserves.1 Similar huge coal deposits lie underground in Canada, Australia, China, South Africa, and other countries. In many cases, the coalfields are not just one bed but multiple coal beds stacked between other fossil-bearing sedimentary rock layers.


  • Energy and kids

    Coal miners use giant machines to remove coal from the ground. They use two methods: surface or underground mining. Many U.S. coal beds are very near the ground's surface, and about two-thirds of coal production comes from surface mines.


  • Tar Sands Basics - Argonne National Laboratory

    Tar sands (also referred to as oil sands) are a combination of clay, sand, water, and bitumen, a heavy black viscous oil.Tar sands can be mined and processed to extract the oil-rich bitumen, which is then refined into oil. The bitumen in tar sands cannot be pumped from the ground in its natural state; instead tar sand deposits are mined, usually using strip mining or open pit techniques, or ...


  • what are the two ways to remove coal from the ground Home ...

    EROEI for Energy Production from Coal- what are the two ways to remove coal from the ground,EROEI for Energy Production from Coal, two ways: lbs ton or ton lbs, Coal can be mined in surface mines or below ground min Once the coal is mined it mustHow coal is extracted from the ground - AnswersHow coal is extracted from the ground,Coal is extracted in two methods, The solution …


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

    Coal focuses on the research and development needs and priorities in the areas of coal resource and reserve assessments, coal mining and processing, transportation of coal and coal products, and coal …


  • coal - National Geographic Society

    Coal is a non-renewable fossil fuel that is combusted and used to generate electricity. Mining techniques and combustion are both dangerous to miners and hazardous to the environment; however, coal accounts for about half of the electricity generation in the United States.


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

    Coal focuses on the research and development needs and priorities in the areas of coal resource and reserve assessments, coal mining and processing, transportation of coal and coal products, and coal utilization.


  • How coal is extracted from the ground - Answers.com

    Coal is extracted from the ground by digging it out. This isusually done with machines, but in tight quarters may be done byworkers using shovels and picks.


  • Coal mining | World Coal Association

    There are two main methods of underground mining: room-and-pillar and longwall mining. Room-and-pillar mining. In room-and-pillar mining, coal deposits are mined by cutting a network of 'rooms' into the coal seam and leaving behind 'pillars' of coal …


  • How Is Coal Extracted? | Reference.com

    The two main methods used for coal extraction are surface mining and underground mining. The methods used to extract coal depend on the geology of the coal deposits. According to Energy Trends Insider, the amount of coal produced by one miner in one hour has more than tripled since 1978 because of ...


  • How was coal extracted from the earth - Answers.com

    Coal is extracted in two methods. One is by digging tunnels into the earth and following the vein of coal, removing it by rail cart. The other is strip mining where they remove the earth above the ...


  • Coal mining - Wikipedia

    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.


  • How do we get oil and gas out of the ground?

    Oil and gas can get trapped in pockets underground such as where the rocks are folded into an umbrella shape. Oil and gas can move through the porous rocks (rocks with gaps between the grains).


  • Dec 22, 2012, Coal is a non-renewable fossil fuel that is ...

    Coal Coal is a fossil fuel created from the remains of plants that lived and died about 100 to, There are two ways to remove coal from the ground: surface mining and.


  • How Does Clean Coal Work? - Popular Mechanics

    The term "clean coal" has been applied to many technologies, ranging from wet scrubbers, which remove sulfur dioxide from coal-generated gas, to coal washing, which removes soil and rock from coal ...


  • Coal mine reclamation - SourceWatch

    Aug 22, 2011· Coal mine reclamation is the rehabilitation of land after coal mining operations have stopped. It is a requirement of the Surface Mining Control and Reclamation Act (SMCRA) of 1977. [1] As mining operations cease bulldozers and scrapers are used to reshape the disturbed area. Reclamation should ...