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St-Arnaud, L.C. |
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Title |
Water covers for the decommissioning of sulfidic mine tailings impoundments |
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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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279-287 |
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acid mine drainage; experimental studies; laboratory studies; leaching; metals; monitoring; pollution; remediation; seepage; sulfides; tailings; waste disposal; water quality 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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Water covers for the decommissioning of sulfidic mine tailings impoundments; GeoRef; English; 2007-045181; 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: 13; illus. |
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CBU @ c.wolke @ 6586 |
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232 |
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Author |
Oleary, W. |
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Wastewater recycling and environmental constraints at a base metal mine and process facilities |
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1996 |
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Water Sci. Technol. |
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33 |
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10-11 |
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371-379 |
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mine water treatment |
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In temperate areas of abundant freshwater there is seldom an urgency to recycle. The statutory protection of inland waters for beneficial uses such as drinking, food processing and game fishing is requiring industries to choose recycling. A European success in this trend is a base metal mining/milling industry which, since 1977, is implementing hydraulic, hydrological, treatment and ecological studies with wastewaters and mine tailings. A model activity, located 50 km from Dublin is considered. Zinc and lead concentrates produced and exported to smelters ultimately yield approximately 194,000 t and 54,000 t of these respective metals (32 and 21 percent of European production). Water use as originally planned would have been approximately 6m(3)/t of ore milled. While ore milling increased by 25 percent to 8,500t/d in 1993, water use declined by 33 percent to 4m(3)/t. The components making up this reduction range from milling technology efficiency to greater recycling from the 165 ha tailings pond. Environmental standards, based on framework regulations originating in EU Directives, have been instrumental in achieving wastewater savings. A conclusion is the value of integrating water quantity, quality, recycling, storage, production and other factors early in project planning. Copyright (C) 1996 IAWQ. Published by Elsevier Science Ltd. |
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Wastewater recycling and environmental constraints at a base metal mine and process facilities; Wos:A1996vb13300041; Times Cited: 1; ISI Web of Science |
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CBU @ c.wolke @ 17170 |
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84 |
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Bloom, N.S.; Preus, E.; Kilner, P.I.; von der Geest, E.; Hensman, C.E. |
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Very efficient removal of toxic metals from acid mine drainage water (Berkeley Pit, Montana) with a recycled alkaline industrial waste product Hardrock mining 2002; issues shaping the industry |
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2002 |
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acid mine drainage; Berkeley Pit; Butte Montana; decontamination; geochemistry; hydrochemistry; industrial waste; metals; mineral composition; Montana; pollution; Silver Bow County Montana; soils; sulfates; surface water; toxic materials; trace metals; United States; waste disposal; water treatment 22 Environmental geology; 02A General geochemistry |
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Very efficient removal of toxic metals from acid mine drainage water (Berkeley Pit, Montana) with a recycled alkaline industrial waste product Hardrock mining 2002; issues shaping the industry; GeoRef; English; 2007-046176; Hardrock mining 2002; issues shaping the industry, Westminster, CO, United States, May 7-9, 2002 U. S. Environmental Protection Agency, Office of Research and Development, Washington, DC, United States |
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CBU @ c.wolke @ 5625 |
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445 |
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LaPointe, F.; Fytas, K.; McConchie, D. |
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Using permeable reactive barriers for the treatment of acid rock drainage |
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2005 |
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International journal of surface mining, reclamation and environment |
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19 |
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1 |
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57-65 |
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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) waste management remediation mining industry pollution control acid mine drainage reactive barrier aluminium industry effluents industrial waste mineral processing industry oxidation waste handling permeable reactive barriers acid rock drainage treatment acid mine drainage environmental problem Canadian mineral industry oxidation sulphide minerals mine waste mine tailings heavy metals acid remediation technology metallurgical residues aluminium extraction industry acid mine effluents Manufacturing and Production acid mine drainage Bauxsol Canada disposal barriers effluents experimental studies heavy metals instruments oxidation permeable reactive barriers pollutants pollution pyrite pyrrhotite remediation sulfides tailings waste disposal waste management |
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Acid mine drainage (AMD) is the most serious environmental problem facing the Canadian mineral industry today. It results from oxidation of sulphide minerals (e.g. pyrite or pyrrhotite) contained in mine waste or mine tailings and is characterized by acid effluents rich in heavy metals that are released into the environment. A new acid remediation technology is presented, by which metallurgical residues from the aluminium extraction industry are used to construct permeable reactive barriers (PRBs) to treat acid mine effluents. This technology is very promising for treating acid mine effluents in order to decrease their harmful environmental effects |
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1389-5265 |
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Using permeable reactive barriers for the treatment of acid rock drainage; 8467608; Journal Paper; SilverPlatter; Ovid Technologies |
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CBU @ c.wolke @ 16786 |
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12 |
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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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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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