what are the two ways to remove coal from the ground

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  • Coal and the environment

    Coal 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...

  • Mining Methods

    Surface mining methods include area, contour, highwall and mountaintop removal Area mines are surface mines that remove shallow coal over a broad area where the land is fairly flat After the coal has been removed, the overburden is placed back into the pit Contour mines are surface mines that mine coal in steep, hilly or mountainous terrain...

  • Why We Need to Quit Coal

    Why We Need to Quit Coal The coal industry has spent tens of millions of dollars trying to deceive the American public into believing that coal is here to stay, and that the country has no other option to power its schools, places of worship, and business The industry spent big because it knows that the exact opposite is true The age of coal is over...

  • How "NOT" to deal with a in

    Apr 04, 2016· I forgot to upload this video from last summer, or maybe, I just wanted to forget about the whole "how-to video" incident entirely I intended to film this as DIY environmentally responsible ....

  • Coal Types, Formation and Methods of Mining

    Coal is an organic sediment consisting of a complex mixture of substanc 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, Continue reading...

  • Chapter 2: The Environmental Effects of Strip Mining

    Despite its title, SMCRA's provisions apply not only to surface mining, but also to the surface effects of underground mining As a percentage of all coal mining, underground coal mining has been declining for many years, but in 2007 it still accounted for approximately 31 percent of coal mining, as compared with 69 percent surface mining...

  • Extraction of Resources | Geology

    Techniques of surface mining include: open-pit mining, which is the recovery of materials from an open pit in the ground, quarrying or gathering building materials from an open-pit mine; strip mining, which consists of stripping surface layers off to reveal ore/seams underneath; and mountaintop removal, commonly associated with coal mining ....

  • Surface mining

    Surface mining, including strip mining, open-pit mining and mountaintop removal mining, is a broad category of mining in which soil and rock overlying the mineral deposit (the overburden) are removed, in contrast to underground mining, in which the overlying rock is left in place, and the mineral is removed through shafts or tunnels Surface mining began in the mid-sixteenth century [dubious ....

  • Coal in a Nutshell

    Jan 23, 2020· Coal geologists study their subject the same way that other geologists study other rocks But instead of talking about the minerals that make up the rock (because there are none, just bits of organic matter), coal geologists refer to the components of coal as maceralsThere are three groups of macerals: inertinite, liptinite, and vitrinite...

  • 4 Ways to Remove Double Sided Tape

    Mar 29, 2019· How to Remove Double Sided Tape Double sided tape is a very useful product to have around the home, but successfully removing it can be a real problem The best method of removing double sided tape will depend on ,...

  • Clean Coal Explained

    Aug 23, 2017· How Does Clean Coal Work? , which remove sulfur dioxide from coal-generated gas, , Coal plants today typically use what is called pulverized coal That means the coal is ground ,...

  • How to remove a stump in 2

    Nov 21, 2011· Though this sounds like a easy and great way to solve a stump problem yes roots will burn and cause fire to travel under ground undetected for daysI have taught fire building to groups in the past and it is always important to consider the position of the fire lay for just those types of conditionsDo some research on what kind of tree it was ....

  • Coal mining and transportation

    Mining coal Coal miners use large machines to remove coal from the earth Many US coal deposits, called coal beds or seams, are near the earth's surface, while others are deep undergroundModern mining methods allow coal miners to easily reach most of the nation's coal reserves and to produce about three times more coal in one hour than in 1978...

  • How was coal extracted from the earth

    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 ....