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old mining abandoned

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old mining abandoned

Jun 02 2008 · Unfortunately most mines remain abandoned waste sites Cleaning up an old mine can be costly Congressional testimony in 2006 concluded that it would take nearly 72 billion to clean up just the abandoned hardrock mines in the United States source Earthworks These are mines that produce heavy minerals like silver gold uranium and other metals located largely in the Western ... As a leading global manufacturer of crushing equipment, milling equipment,dressing equipment,drying equipment and briquette equipment etc. we offer advanced, rational solutions for any size-reduction requirements, including quarry, aggregate, grinding production and complete plant plan.

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