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Author Kepler, D.A.; Mc Cleary, E.C. url  openurl
  Title Successive Alkalinity-Producing Systems (SAPS) for the Treatment of Acid Mine Drainage Type Journal Article
  Year 1994 Publication Proceedings, International Land Reclamation and Mine Drainage Conference Abbreviated Journal  
  Volume 1 Issue Pages 195-204  
  Keywords acid mine drainage; alkalinity; anaerobic environment; calcium carbonate; chemical reactions; experimental studies; pH; pollutants; pollution; remediation; water quality SAPS mine water RAPS  
  Abstract Constructed wetland treatment system effectiveness has been limited by the alkalinity-producing, or acidity-neutralizing, capabilities of systems. Anoxic limestone drains (ALD's) have allowed for the treatment of approximately 300 mg/L net acidic mine drainage, but current design guidance precludes using successive ALD's to generate alkalinity in excess of 300 mg/L because of concerns with dissolved oxygen. “Compost” wetlands designed to promote bacterially mediated sulfate reduction are suggested as a means of generating alkalinity required in excess of that produced by ALD's. Compost wetlands create two basic needs of sulfate reducing bacteria; anoxic conditions resulting from the inherent oxygen demand of the organic substrate, and quasi-circumneutral pH values resulting from the dissolution of the carbonate fraction of the compost. However, sulfate reduction treatment area needs are generally in excess of area availability and/or cost effectiveness. Second generation alkalinity-producing systems demonstrate that a combination of existing treatment mechanisms has the potential to overcome current design concerns and effectively treat acidic waters ad infinitum. Successive alkalinity-producing systems (SAPS) combine ALD technology with sulfate reduction mechanisms. SAPS promote vertical flow through rich organic wetland substrates into limestone beds beneath the organic compost, discharging the pore waters. SAPS allow for conservative wetland treatment sizing calculations to be made as a rate function based on pH and alkalinity values and associated contaminant loadings. SAPS potentially decrease treatment area requirements and have the further potential to generate alkalinity in excess of acidity regardless od acidity concentrations.  
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  Notes Successive Alkalinity-Producing Systems (SAPS) for the Treatment of Acid Mine Drainage; Cn, Kj, Aj; file:///C:/Dokumente%20und%20Einstellungen/Stefan/Eigene%20Dateien/Artikel/9722.pdf; AMD ISI | Wolkersdorfer Approved no  
  Call Number CBU @ c.wolke @ 9722 Serial 55  
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Author Karathanasis, A.D.; Barton, C.D. url  isbn
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  Title The revival of a failed constructed wetland treating a high Fe load AMD Type Book Chapter
  Year 1999 Publication Proceedings; biogeochemistry of trace elements in coal and coal combustion byproducts Abbreviated Journal  
  Volume Issue Pages  
  Keywords abandoned mines acid mine drainage anaerobic environment carbonate rocks characterization composting constructed wetlands design environmental analysis ferrihydrite geologic hazards hydrology hydroxides iron iron hydroxides Kentucky limestone metals minerals mines organic compounds oxides pollution remediation runoff sedimentary rocks sediments solubility sulfate ion United States water quality water treatment wetlands 22, Environmental geology  
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  Publisher Kluwer Academic/Plenum Publishers Place of Publication New York Editor Sajwan, K.S.; Alva, A.K.; Keefer, R.F.  
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  ISSN ISBN 0306462885 Medium  
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  Notes The revival of a failed constructed wetland treating a high Fe load AMD; GeoRef; English; 2002-039561; Fourth international conference on the Biogeochemistry of trace elements, Berkeley, CA, United States, June 23, 1997 References: 45; illus. incl. 2 tables, sketch maps Approved no  
  Call Number CBU @ c.wolke @ 16571 Serial 82  
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Author Blowes, D.W.; Ptacek, C.J.; Benner, S.G.; McRae, C.W.T.; Puls, R.W. url  openurl
  Title Treatment of dissolved metals using permeable reactive barriers Type Journal Article
  Year 1998 Publication Groundwater Quality: Remediation and Protection Abbreviated Journal  
  Volume Issue 250 Pages 483-490  
  Keywords adsorption; aquifers; attenuation; dissolved materials; metals; nutrients; oxidation; pollutants; pollution; precipitation; reduction; water treatment Groundwater quality Pollution and waste management non radioactive Groundwater acid mine drainage aquifer pollution conference proceedings containment barrier metal tailings Canada Ontario Nickel Rim Mine United States North Carolina Elizabeth City mine water treatment  
  Abstract Permeable reactive barriers are a promising new approach to the treatment of dissolved contaminants in aquifers. This technology has progressed rapidly from laboratory studies to full-scale implementation over the past decade. Laboratory treatability studies indicate the potential for treatment of a large number of inorganic contaminants, including As, Cd, Cr, Cu, Hg, Fe, Mn, Mo, Ni, Pb, Se, Tc, U, V, NO3, PO4, and SO4. Small scale field studies have indicated the potential for treatment of Cd, Cr, Cu, Fe, Ni, Pb, NO3, PO4, and SO4. Permeable reactive barriers have been used in full-scale installations for the treatment of hexavalent chromium, dissolved constituents associated with acid-mine drainage, including SO4, Fe, Ni, Co and Zn, and dissolved nutrients, including nitrate and phosphate. A full-scale barrier designed to prevent the release of contaminants associated with inactive mine tailings impoundment was installed at the Nickel Rim mine site in Canada in August 1995. This reactive barrier removes Fe, SO,, Ni and other metals. The effluent from the barrier is neutral in pH and contains no acid-generating potential, and dissolved metal concentrations are below regulatory guidelines. A full-scale reactive barrier was installed to treat Cr(VI) and halogenated hydrocarbons at the US Coast Guard site in Elizabeth City, North Carolina, USA in June 1996. This barrier removes Cr(VI) from >8 mg l(-1) to <0.01 mg l(-1).  
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  ISSN 0144-7815 ISBN Medium  
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  Notes Treatment of dissolved metals using permeable reactive barriers; Isip:000079718200072; Times Cited: 0; ISI Web of Science Approved no  
  Call Number CBU @ c.wolke @ 8601 Serial 178  
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Author Ziemkiewicz, P.F.; Skousen, J.G.; Skousen, J.G.; Ziemkiewicz, P.F. openurl 
  Title Prevention of acid mine drainage by alkaline addition Type Book Chapter
  Year 1996 Publication Acid mine drainage control and treatment Abbreviated Journal  
  Volume Issue Pages  
  Keywords acid mine drainage; acidification; alkalinity; Appalachians; coal; land use; leachate; leaching; mines; mitigation; North America; oxidation; pollution; preventive measures; pyrite; reclamation; sampling; sedimentary rocks; soils; spoils; sulfides; surface water; techniques; United States; water pollution; water quality; water treatment; weathered materials; 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 Prevention of acid mine drainage by alkaline addition; GeoRef; English; 2004-051146; Edition: 2 References: 18; illus. incl. 2 tables Approved no  
  Call Number CBU @ c.wolke @ 6356 Serial 185  
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Author Ziemkiewicz, P.F.; Skousen, J.G.; Skousen, J.G.; Ziemkiewicz, P.F. openurl 
  Title Overview of acid mine drainage at-source control strategies Type Book Chapter
  Year 1996 Publication Acid mine drainage control and treatment Abbreviated Journal  
  Volume Issue Pages  
  Keywords acid mine drainage; acidification; alkalinity; backfill; coal mines; disposal barriers; geochemistry; ground water; hydrochemistry; hydrology; leaching; legislation; mines; mitigation; Pennsylvania; pollution; prediction; reclamation; remediation; simulation; SMCRA; soils; Surface Mine Control and Reclamation Act; surface water; topsoil; toxicity; United States; waste disposal; waste rock; water quality; weathering 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 Overview of acid mine drainage at-source control strategies; GeoRef; English; 2004-051145; Edition: 2 References: 44 Approved no  
  Call Number CBU @ c.wolke @ 6355 Serial 186  
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