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Author Robbins, E.I.; Cravotta, C.A.; Savela, C.E.; Nord, G.L. openurl 
  Title (up) Hydrobiogeochemical Interactions in 'anoxic' Limestone Drains for Neutralization of Acidic Mine Drainage Type Journal Article
  Year 1999 Publication Fuel Abbreviated Journal  
  Volume 78 Issue 2 Pages 259-270  
  Keywords aluminite biofilms epilithic bacteria gibbsite limestone armoring anoxic limestone drains acid mine drainage surface waters iron aluminum bacteria sulfate  
  Abstract Processes affecting neutralization of acidic coal mine drainage were evaluated within 'anoxic' limestone drains (ALDs). Influents had pH less than or equal to 3.5 and dissolved oxygen < 2 mg/l. Even though effluents were near neutral (pH > 6 and alkalinity > acidity), two of the four ALDs were failing due to clogging. Mineral-saturation indices indicated the potential for dissolution of calcite and gypsum, and precipitation of Al3+ and Fe3+ compounds. Cleavage mounts of calcite and gypsum that were suspended within the ALDs and later examined microscopically showed dissolution features despite coatings by numerous bacteria, biofilms, and Fe-Al-Si precipitates. In the drain exhibiting the greatest flow reduction, Al-hydroxysulfates had accumulated onlimestone surfaces and calcite etch points, thus causing the decline in transmissivity and dissolution. Therefore, where Al loadings are high and flow rates are low, a pre-treatment step is indicated to promote Al removal before diverting acidic mine water into alkalinity-producing materials. Published by Elsevier Science Ltd.  
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  ISSN 0016-2361 ISBN Medium  
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  Notes Hydrobiogeochemical Interactions in 'anoxic' Limestone Drains for Neutralization of Acidic Mine Drainage; Isi:000078042100020; AMD ISI | Wolkersdorfer Approved no  
  Call Number CBU @ c.wolke @ 17411 Serial 261  
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Author Burnett, M.; Skousen, J.G.; Skousen, J.G.; Ziemkiewicz, P.F. openurl 
  Title (up) Injection of limestone into underground mines for AMD control Type Book Chapter
  Year 1996 Publication Acid mine drainage control and treatment Abbreviated Journal  
  Volume Issue Pages  
  Keywords acid mine drainage; acidification; alkalinity; carbonate rocks; chemical composition; coal fields; concentration; environmental analysis; environmental management; experimental studies; geologic hazards; ground water; hazardous waste; heavy metals; hydrology; land subsidence; limestone; mines; mining; mining geology; pH; pollution; Preston County West Virginia; reclamation; runoff; sedimentary rocks; Sovern Run Mine; surface water; underground mining; United States; waste management; water quality; West Virginia 22, Environmental geology  
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  Publisher West Virginia University and the National Mine Land Reclamation Center Place of Publication Morgantown Editor  
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  Notes Injection of limestone into underground mines for AMD control; GeoRef; English; 2004-051160; Edition: 2 References: 2; illus. incl. 1 table Approved no  
  Call Number CBU @ c.wolke @ 6370 Serial 427  
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Author Schueck, J.H. url  openurl
  Title (up) Limestone diversion wells; a low-maintenance, cost-effective method for treating acid-mine drainage with limestone Type Book Chapter
  Year 1995 Publication Guidebook for the Annual Field Conference of Pennsylvania Geologists, vol.60 Applied geology in the Lock Haven and Williamsport region, Clinton and Lycoming counties, northcentral Pennsylvania Abbreviated Journal  
  Volume Issue Pages 9-12  
  Keywords acid mine drainage; Babb Creek watershed; Blossburg coal basin; carbonate rocks; ground water; hydrology; limestone; Pennsylvania; pollution; remediation; sedimentary rocks; Tioga County Pennsylvania; United States; water wells; watersheds; wells 22, Environmental geology  
  Abstract  
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  Publisher Place of Publication Editor Carnein, C.R.; Way, J.H.  
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  Notes Limestone diversion wells; a low-maintenance, cost-effective method for treating acid-mine drainage with limestone; GeoRef; English; 1996-018760; 60th annual field conference of Pennsylvania geologists, Williamsport, PA, United States, Oct. 5-7, 1995 References: 3; 1 table, sketch map Approved no  
  Call Number CBU @ c.wolke @ 6420 Serial 77  
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Author Ziemkiewicz, P.F.; Skousen, J.G.; Simmons, J. openurl 
  Title (up) Long-term Performance of Passive Acid Mine Drainage Treatment Systems Type Journal Article
  Year 2003 Publication Mine Water Env. Abbreviated Journal  
  Volume 22 Issue 3 Pages 118-129  
  Keywords acidity acid load aerobic wetlands anaerobic wetlands anoxic limestone drains limestone leach beds open limestone channels slag leach beds successive alkalinity producing systems vertical flow wetlands  
  Abstract State and federal reclamation programs, mining operators, and citizen-based watershed organizations have constructed hundreds of passive systems in the eastern U.S. over the past 20 years to provide reliable, low cost, low maintenance mine water treatment in remote locations. While performance has been reported for individual systems, there has not been a comprehensive evaluation of the performance of each treatment type for a wide variety of conditions. We evaluated 83 systems: five types in eight states. Each system was monitored for influent and effluent flow, pH, net acidity, and metal concentrations. Performance was normalized among types by calculating acid load reductions and removals, and by converting construction cost, projected service life, and metric tonnes of acid load treated into cost per tonne of acid treated. Of the 83 systems, 82 reduced acid load. Average acid load reductions were 9.9 t/yr for open limestone channels (OLC), 10.1 t/yr for vertical flow wetlands (VFW), 11.9 t/yr for anaerobic wetlands (AnW), 16.6 t/yr for limestone leach beds (LSB), and 22.2 t/yr for anoxic limestone drains (ALD). Average costs for acid removal varied from $83/t/yr for ALDs to $527 for AnWs. Average acid removals were 25 g/m2/day for AnWs, 62 g/m2/day for VFWs, 22 g/day/t for OLCs, 28 g/day/t for LSBs, and 56 g/day/t for ALDs. It appears that the majority of passive systems are effective but there was wide variation within each system type, so improved reliability and efficiency are needed. This report is an initial step in determining passive treatment system performance; additional work is needed to refine system designs and monitoring.  
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  ISSN 1025-9112 ISBN Medium  
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  Notes Long-term Performance of Passive Acid Mine Drainage Treatment Systems; 1; FG 1 Abb., 7 Tab.; AMD ISI | Wolkersdorfer Approved no  
  Call Number CBU @ c.wolke @ 17454 Serial 187  
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Author Ziemkiewicz, P.F.; Skousen, J.G.; Lovett, R.; Skousen, J.G.; Ziemkiewicz, P.F. openurl 
  Title (up) Open limestone channels for treating acid mine drainage; a new look at an old idea Type Book Chapter
  Year 1996 Publication Acid mine drainage control and treatment Abbreviated Journal  
  Volume Issue Pages  
  Keywords acid mine drainage; acidic composition; acidification; Appalachians; carbonate rocks; chemical reactions; concentration; constructed wetlands; ground water; limestone; North America; Pennsylvania; pollution; sedimentary rocks; surface water; United States; water quality; water treatment; West Virginia; western Pennsylvania; wetlands 22, Environmental geology  
  Abstract  
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  Publisher West Virginia University and the National Mine Land Reclamation Center Place of Publication Morgantown Editor  
  Language Summary Language Original Title  
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  Notes Open limestone channels for treating acid mine drainage; a new look at an old idea; GeoRef; English; 2004-051154; Edition: 2 References: 5; illus. incl. 5 tables Approved no  
  Call Number CBU @ c.wolke @ 6364 Serial 188  
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