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Author Demchak, J.; Morrow, T.; Skousen, J.; Donovan, J.J.; Rose, A.W.
Title Treatment of acid mine drainage by four vertical flow wetlands in Pennsylvania Evolution and remediation of acid-sulfate groundwater systems at reclaimed mine-sites Type Journal Article
Year 2001 Publication Geochemistry – Exploration, Environment, Analysis Abbreviated Journal
Volume 1 Issue 1 Pages 71-80
Keywords acid mine drainage alkalinity anaerobic environment Appalachian Plateau Appalachians carbonate rocks Clearfield County Pennsylvania constructed wetlands Eh equilibrium Filson Wetlands ground water Howe Bridge Wetlands hydrology Jefferson County Pennsylvania limestone McKinley Wetlands Mill Creek watershed Moose Creek movement North America passive methods Pennsylvania pH pollution reclamation sedimentary rocks Sommerville Wetlands systems United States water treatment watersheds wetlands 22 Environmental geology 02B Hydrochemistry
Abstract Acid mine drainage (AMD) is a serious problem in many watersheds where coal is mined. Passive treatments, such as wetlands and anoxic limestone drains (ALDs), have been developed, but these technologies show varying treatment efficiencies. A new passive treatment technique is a vertical flow wetland or successive alkalinity producing system (SAPS). Four SAPS in Pennsylvania were studied to determine changes in water chemistry from inflow to outflow. The Howe Bridge SAPS removed about 130 mg l (super -1) (40%) of the inflow acidity concentration and about 100 mg l (super -1) (60%) iron (Fe). The Filson 1 SAPS removed 68 mg l (super -1) (26%) acidity, 20 mg l (super -1) (83%) Fe and 6 mg l (super -1) (35%) aluminium (Al). The Sommerville SAPS removed 112 mg l (super -1) (31%) acidity, exported Fe, and removed 13 mg l (super -1) (30%) Al. The McKinley SAPS removed 54 mg l (super -1) (91%) acidity and 5 mg l (super -1) (90%) Fe. Acid removal rates at our four sites were 17 (HB), 52 (Filson1), 18 (Sommerville) and 11 (McKinley) g of acid per m (super 2) of surface wetland area per day (g/m (super 2) d (super -1) ). Calcium (Ca) concentrations in the SAPS effluents were increased between 8 and 57 mg l (super -1) at these sites. Equilibrators, which were inserted into compost layers to evaluate redox conditions at our sites, showed that reducing conditions were generally found at 60 cm compost depths and oxidized conditions were found at 30 cm compost depths. Deeply oxidized zones substantiated observations that channel flow was occurring through some parts of the compost. The Howe Bridge site has not declined in treatment efficiency over a six year treatment life. The SAPS construction costs were equal to about seven years of NaOH chemical treatment costs and 30 years of lime treatment costs. So, if the SAPS treatment longevity is seven years or greater and comparable effluent water quality was achieved, the SAPS construction was cost effective compared to NaOH chemical treatment. Construction recommendations for SAPS include a minimum of 50 cm of compost thickness, periodic replacement or addition of fresh compost material, and increasing the number of drainage pipes underlying the limestone.
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ISSN 1467-7873 ISBN Medium
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Notes Treatment of acid mine drainage by four vertical flow wetlands in Pennsylvania Evolution and remediation of acid-sulfate groundwater systems at reclaimed mine-sites; 2002-008380; References: 15; illus. incl. 5 tables United Kingdom (GBR); GeoRef; English Approved no
Call Number CBU @ c.wolke @ 16518 Serial 58
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Author Yernberg, W.R.
Title Improvements seen in acid-mine-drainage technology Type Journal Article
Year 2000 Publication Min. Eng. Abbreviated Journal
Volume 52 Issue 9 Pages 67-70
Keywords acid mine drainage; bacteria; chemical weathering; coal mines; Colorado; copper ores; effects; geochemistry; hydrogen; inorganic acids; international cooperation; ions; lead ores; medical geology; metal ores; mines; molybdenum ores; oxidation; pH; pollution; prediction; pyrite; reclamation; remediation; research; risk assessment; silicates; soil treatment; solid waste; sulfides; sulfuric acid; Summitville Mine; tailings; tailings ponds; technology; United States; waste disposal; weathering; zinc ores 22, Environmental geology
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ISSN 0026-5187 ISBN Medium
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Notes Improvements seen in acid-mine-drainage technology; 2000-069686; illus. incl. sect., sketch map United States (USA); GeoRef; English Approved no
Call Number CBU @ c.wolke @ 5808 Serial 73
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Author Wieder, R.K.
Title A survey of constructed wetlands for acid coal mine drainage treatment in the Eastern United States Type Journal Article
Year 1989 Publication Wetlands Abbreviated Journal
Volume 9 Issue 2 Pages 299-315
Keywords acid mine drainage; coal; Eastern U.S.; environmental geology; human activity; organic residues; Pennsylvania; pollution; reclamation; sedimentary rocks; United States; water quality; water treatment; wetlands 22 Environmental geology; 21 Hydrogeology
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ISSN 0277-5212 ISBN Medium
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Notes A survey of constructed wetlands for acid coal mine drainage treatment in the Eastern United States; 1990-040374; Dec References: 19; illus. incl. 4 tables United States (USA); GeoRef; English Approved no
Call Number CBU @ c.wolke @ 6755 Serial 212
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Author Smyth, D.J.A.; Blowes, D.W.; Benner, S.G.; Hulshof, A.M.; Nelson, J.D.
Title In situ treatment of groundwater impacted by acid mine drainage using permeable reactive materials Type Book Chapter
Year 2001 Publication Proceedings of the Eighth international conference on Tailings and mine waste '01 Abbreviated Journal
Volume Issue Pages 313-322
Keywords acid mine drainage; environmental management; ground water; in situ; permeability; pollution; reclamation; sulfate ion; water treatment 22, Environmental geology
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Notes In situ treatment of groundwater impacted by acid mine drainage using permeable reactive materials; GeoRef; English; 2003-003552; Tailings and mine waste '01, Fort Collins, CO, United States, Jan. 16-19, 2001 References: 19; illus. Approved no
Call Number CBU @ c.wolke @ 5770 Serial 236
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Author Sanders, F.; Rahe, J.; Pastor, D.; Anderson, R.
Title Wetlands treat mine runoff Type Journal Article
Year 1999 Publication Civil Engineering Abbreviated Journal
Volume 69 Issue 1 Pages 53-55
Keywords Reclamation and conservation Groundwater problems and environmental effects geological abstracts: environmental geology (72 14 1) geomechanics abstracts: excavations (77 10 10) abandoned mine acid mine drainage constructed wetland heavy metal remediation United States Montana Blackfoot River
Abstract In the late 1890s, silver, lead and zinc deposits were discovered along the headwaters of the Blackfoot River, northeast of Missoula, Mont. Settlers began mining the metals in earnest, and eventually the mines became known as the Upper Blackfoot Mining Complex (UBMC). Many of the mines were operated long enough to supply metals for World War II weaponry, but after the war the mines were abandoned, and by the 1960s, their orange-tainted runoff began to concern both passersby and state officials. In 1991, the state contacted the current owners of several of those mines-including the Mike Horse and the Anaconda-to negotiate a voluntary cleanup. The American Smelting and Refining Co. (ASARCO) and the Atlantic Richfield Co. (ARCO) agreed to remediate the sites' metal-enriched, moderately to severely acidic drainage, which was discharging into the upper Blackfoot River. As part of effort to reclaim the Mike Horse and Anaconda mines, engineers with McCulley, Frick and Gilman Inc. (MFG), Boulder, Colo., developed an integrated, passive wetland treatment system that will take several years to reach full treatment capacity in the high-elevation environment, but will last for decades. (Constructed and restored wetlands have also been part of the remediation of other UBMC mines, such as the Carbonate and Paymaster mines.) The Mike Horse and Anaconda system, designed to meet National Pollutant Discharge Elimination Systems (NPDES) restrictions, concentrates primarily on zinc and iron and, to a lesser extent, on copper, lead and other metals.
Address F. Sanders, McCulley, Frick and Gilman Inc., Boulder, CO, United States
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ISSN 0885-7024 ISBN Medium
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Notes Wetlands treat mine runoff; 0411276; United-States; Geobase Approved no
Call Number CBU @ c.wolke @ 17551 Serial 256
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