Solid & hazardous materials
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Transcript of Solid & hazardous materials
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Solid & hazardous materials
Environmental Science, Donald Winslow4 December 2009
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Mining Minerals & rock Economic geology
1872 Mining law Metals Non-metal mineral resources Fuel Environmental effects of mining
Reducing consumption
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Metals refined from mined ore
Al, Fe, Cu, Pb, Ni, Zn, Hg, Sn, Cr, Mn, Pt, Au, Ag
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Non-metal mineral resources
Gravel Clay Glass Salts
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Fuel
Uranium Petroleum Coal
Mountaintop Removal www.ilovemountains.org
Natural gas Coal-bed methane
Powder River, Wyoming Arkoma Basin, Oklahoma
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Environmental effects of mining
Acid drainage Processing
Smelting Heap-leach extraction
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Reducing consumption Metals Plastics Fuels Electricity etc
Eliminating unnecessary consumption reduces waste.
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Solid and hazardous waste
What is waste?
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Solid “waste”
“Waste” production American waste stream Fate of American solid materials
Landfills closing Reduce, reuse, recycle Hazardous waste
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American waste stream
Paper & paperboard Yard trimmings Plastic Food Metals
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Fate of American solid materials
Landfills Open dumps Sanitary landfills Ocean dumping Exporting waste & environmental justice
Recycling Incineration Composting
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Recycling
Sorting, cleaning, reformulating Demanufacturing Biodegradable plastics
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Incineration
Pollution Cogeneration
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Hazardous waste
Chemical & petroleum pollution Federal legislation & regulation
Cradle-to-grave Superfund
Electrical transformers & PCBs
Brownfields Bioremediation Retrievable storage & secure landfills