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Author |
Evangelou, V.P. |
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Title |
Potential microencapsulation of pyrite by artificial inducement of FePO (sub 4) coatings |
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Book Chapter |
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1994 |
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Special Publication – United States. Bureau of Mines, Report: BUMINES-SP-06B-94 |
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96-103 |
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acid mine drainage chemical reactions leaching oxidation pollutants pollution pyrite remediation sulfides tailings theoretical studies waste disposal weathering rinds 22, Environmental geology |
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Proceedings of the International land reclamation and mine drainage conference and Third international conference on The abatement of acidic drainage; Volume 2 of 4; Mine drainage |
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Potential microencapsulation of pyrite by artificial inducement of FePO (sub 4) coatings; GeoRef; English; 2007-045209; International land reclamation and mine drainage conference; International conference on The abatement of acidic drainage, Pittsburgh, PA, United States, April 24-29, 1994 References: 11; illus. |
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CBU @ c.wolke @ 16711 |
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386 |
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Author |
Entrena, A.L.; Serrano, J.R.; Villoria, A. |
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Descontaminacion de aguas de mina con recuperacion de los metales contenidos en ellas. Decontamination of mine waters by recovering the metals contained within them VIII congreso internacional de Mineria y metalurgia; tomo 8. VIII international conference on Mining and metallurgy; Volume 8 |
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Book Chapter |
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1988 |
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Congreso Internacional de Mineria y Metalurgia, vol.8 |
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156-173 |
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actinides; Castilla y Leon Spain; decontamination; Europe; Iberian Peninsula; iron minerals; Leon region; metals; mines; pollution; recovery; remediation; Salamanca Spain; Southern Europe; Spain; uranium; water pollution 22, Environmental geology |
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Asociacion Nacional de Ingenieros de Minas de Espana, O. |
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Descontaminacion de aguas de mina con recuperacion de los metales contenidos en ellas. Decontamination of mine waters by recovering the metals contained within them VIII congreso internacional de Mineria y metalurgia; tomo 8. VIII international conference on Mining and metallurgy; Volume 8; GeoRef; Spanish; 1997-066026; 8. Congreso internacional de Mineria y metalurgia, Oviedo, Spain, 1988 4 tables |
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CBU @ c.wolke @ 6774 |
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389 |
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Emerick, J.C.; Wildeman, T.R.; Cohen, R.R.; Klusman, R.W. |
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Constructed wetland treatment of acid mine discharge at Idaho Springs, Colorado Guidebook on the geology, history, and surface-water contamination and remediation in the area from Denver to Idaho Springs, Colorado |
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RPT |
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1994 |
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C 1097 |
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acid mine drainage; Big Five Tunnel; Clear Creek County Colorado; Colorado; ecology; hydrology; Idaho Springs Colorado; metals; north-central Colorado; pilot plants; pollutants; pollution; reclamation; rivers and streams; surface water; tunnels; United States; USGS; water treatment; wetlands 22 Environmental geology; 21 Hydrogeology |
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Severson, R.C. |
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Stewart, K.C. |
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Constructed wetland treatment of acid mine discharge at Idaho Springs, Colorado Guidebook on the geology, history, and surface-water contamination and remediation in the area from Denver to Idaho Springs, Colorado; 1994-037816; GeoRef; English; 0364-6017 References: 6; illus. incl. 2 tables, block diags. |
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CBU @ c.wolke @ 6664 |
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390 |
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Author |
Eger, P.; Wagner, J.R.; Kassa, J.R.; Melchert, G.D. |
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Title |
Metal removal in wetland treatment systems |
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Book Chapter |
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1994 |
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Special Publication – United States. Bureau of Mines, Report: BUMINES-SP-06A-94 |
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80-88 |
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acid mine drainage; cobalt; constructed wetlands; copper; flows; geochemistry; hydrology; metals; mines; Minnesota; nickel; peat; pollution; remediation; sediments; sulfides; surface water; United States; waste disposal; water quality; wetlands; zinc 22, Environmental geology |
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Proceedings of the International land reclamation and mine drainage conference and Third international conference on The abatement of acidic drainage; Volume 1 of 4; Mine Drainage |
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Metal removal in wetland treatment systems; GeoRef; English; 2007-045160; International land reclamation and mine drainage conference and Third international conference on The abatement of acidic drainage, Pittsburgh, PA, United States, April 24-29, 1994 References: 21; illus. incl. 2 tables |
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Call Number |
CBU @ c.wolke @ 6570 |
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391 |
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Author |
Eger, P.; Melchert, G.; Wagner, J. |
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Title |
Using passive treatment systems for mine closure – A good approach or a risky alternative? |
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2000 |
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Min. Eng. |
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52 |
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9 |
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78-83 |
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Pollution and waste management non radioactive Groundwater problems and environmental effects geological abstracts: environmental geology (72 14 2) geomechanics abstracts: excavations (77 10 10) acid mine drainage decommissioning mine waste open pit mine pH remediation |
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In 1991, LTV Steel Mining decided to close an open-pit taconite mine in northeastern Minnesota using a passive-treatment approach consisting of limiting infiltration into the stockpiles and wetland treatment to remove metals. More than 50 Mt (55 million st) of sulfide-containing waste had been stockpiled adjacent to the mine during its 30 years of operation. Drainage from the stockpiles contained elevated levels of copper, nickel, cobalt and zinc. Nickel is the major trace metal in the drainages. Before the closure, the annual median concentrations ranged from 1.5 to 50 mg/L. Copper, cobalt and zinc are also present but they are generally less than 5% of the nickel values. Median pH levels range from 5 to 7.5, but most of the stockpile drainages have pH levels greater than 6.5. Based on the chemical composition of each stockpile, a cover material was selected. The higher the potential that a stockpile had to produce acid drainage, the lower the permeability of the capping material required. Covers ranged from overburden soil removed at the mine to a flexible plastic liner. Predictions of the reduction in infiltration ranged from 40% for the native soil to more than 90% for the plastic liner. Five constructed wetlands have been installed since 1992. They have removed 60% to 90% of the nickel in the drainages. Total capital costs for all the infiltration reduction and wetlands exceeded $6.5 million, but maintenance costs are less than 1% of those for an active treatment plant. Because mine-drainage problems can continue for more than 100 years, the lower annual operating costs should pay for the construction of the wetland-treatment systems within seven years. |
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P. Eger, Minnesota Dept. of Natural Rsrces., St. Paul, MN, United States |
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0026-5187 |
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Using passive treatment systems for mine closure – A good approach or a risky alternative?; 2285715; United-States 19; Geobase |
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CBU @ c.wolke @ 17539 |
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392 |
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