'Coal seam' diaporamas de présentation

Introductions

BIOL1040 Environmental Science. Introductions. BIOL1040 Environmental Science. http://people.nnu.edu/jocossel/BIOL1040/BIOL1040_index_2012.htm. Environmental Problems, Their Causes, and Sustainability. Chapter 1. What is Environmental science?.

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Resour ces

Coal quality parameters. Resour ces. Calorific value. Sulphur. Ash. Hydrocarbons. Petroleum and natural gas.

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In Situ Coal Gasification:

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Mining

Mining. By 1852, mining operations were well under way on the American River near Sacramento. http://www.smithsonianmag.si.edu/smithsonian/issues98/jan98/mining_jpg.html. Open Pit Mine. http://imcg.wr.usgs.gov/usbmak/fig03.gif. Commonly mined materials and end uses.

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Review

Review. Vocabulary/ Definitions/ Review. Plate Tectonics Theory:

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Environmental Costs of Strip Mining of Texas Lignite

Environmental Costs of Strip Mining of Texas Lignite. Area stripping Overburden not high sulfur Reclamation cost C T = 0.055 C A /T C T = Cost in cents per ton T = coal seam thickness in feet C A = reclamation cost in dollars per acre ($200 in Texas, adequate rainfall for revegetation).

235 views • 11 slides

Environmental Concerns

Environmental Concerns. Besides Accidents Acid Mine Drainage Acid rain Increasing atmospheric CO 2 Mine reclamation (subsidence) Coal seam fires. Acid Mine Drainage. Sulphur is bound in organic mararels and in Fe sulphides (marcasite and pyrite)

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Andrew Barger

A future in farming? Coexisting with mining. Andrew Barger. Director - Industry Policy. ABARES Outlook Conference 2 March 2011. Coexistence, not conflict. Respect and engagement on the ground, rather than headline-grabbing stunts.

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