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Brunet, J.-F. |
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Drainages miniers acides; contraintes et remedes; etat des connaissances--Acid mine drainage; problems and remediation techniques; state of the art |
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2000 |
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Principaux Resultats Scientifiques – Bureau de Recherches Geologiques et Minieres |
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1999/2000 |
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97-98 |
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acid mine drainage; cost; decontamination; dissolved materials; efficiency; metals; pollutants; pollution; regulations; remediation; sulfides; technology; waste water; water treatment 22, Environmental geology |
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0766-7175 |
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Drainages miniers acides; contraintes et remedes; etat des connaissances--Acid mine drainage; problems and remediation techniques; state of the art; 2002-059955; France (FRA); GeoRef; French; English |
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CBU @ c.wolke @ 5888 |
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429 |
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Author |
Campbell, A. |
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Title |
Mitigation of acid rock drainage at the Summitville Mine Superfund Site, Colorado, USA |
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Journal Article |
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2000 |
Publication |
ICARD 2000, Vols I and II, Proceedings |
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1243-1250 |
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mine water treatment |
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Numerous techniques for treating, controlling, and preventing acid rock drainage have been applied at the Summitville Mine Superfund Site. Challenging aspects of the remote mine site include the wide-spread occurrence of acid-generating soils and rocks, extensive surface and underground mine workings, and a cold and wet climate. Water treatment was an immediate necessity when the Government took control of the abandoned site in December of 1992. Subsequent reclamation activities have emphasized prevention and control of ARD to minimize future water treatment requirements. A combination of conventional, innovative, and experimental methods are being applied to successfully mitigate ARD at Summitville. |
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Mitigation of acid rock drainage at the Summitville Mine Superfund Site, Colorado, USA; Isip:000169875500124; Times Cited: 0; ISI Web of Science |
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CBU @ c.wolke @ 17110 |
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165 |
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Dillard, G. |
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A win-win way to clean up by changing ionic state, new process can precipitate heavy metals |
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2000 |
Publication |
Pay Dirt |
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734 |
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10-11 |
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acid mine drainage; California; chemical composition; companies; environmental analysis; environmental management; heavy metals; ion exchange; ions; metal ores; metals; mining; pollutants; pollution; precipitation; processes; remediation; soils; surface water; United States; water treatment 22, Environmental geology |
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A win-win way to clean up by changing ionic state, new process can precipitate heavy metals; 2004-029026; illus. United States (USA); GeoRef; English |
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CBU @ c.wolke @ 5822 |
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401 |
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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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Journal Article |
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Year |
2000 |
Publication |
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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Author |
Feng, D.; Aldrich, C.; Tan, H. |
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Title |
Treatment of acid mine water by use of heavy metal precipitation and ion exchange |
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Journal Article |
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Year |
2000 |
Publication |
Minerals Engineering |
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13 |
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6 |
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623-642 |
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0892-6875 |
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Treatment of acid mine water by use of heavy metal precipitation and ion exchange; 1573889997; TU Berlin <83> TU Freiberg <105> TIB/UB Hannover <89>; OLC-SSG Technik – Online Contents-Sondersammelgebiete |
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CBU @ c.wolke @ 17618 |
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382 |
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