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Author Barton, C.D.; Karathanasis, A.D.
Title Aerobic and anaerobic metal attenuation processes in a constructed wetland treating acid mine drainage Type Book Chapter
Year 1997 Publication AAPG Eastern Section and the Society for Organic Petrology joint meeting; abstracts Abbreviated Journal
Volume Issue Pages 1545
Keywords acid mine drainage aerobic environment air-water interface anaerobic environment attenuation buffers constructed wetlands controls diffusion iron manganese metals mineral composition pollution precipitation processes SEM data solubility solution sulfate ion sulfur wetlands X-ray diffraction data 22, Environmental geology
Abstract The use of constructed wetlands for acid mine drainage amelioration has become a popular alternative to conventional treatment methods, however, the metal attenuation processes of these systems are poorly understood. Precipitates from biotic and abiotic zones of a staged constructed wetland treating high metal load (approx. equal to 1000 mg L (super -1) ) and low pH (approx. 3.0) acid mine drainage were characterized by chemical dissolution, x-ray diffraction, thermal analysis and scanning electron microscopy. Characterization of abiotic/aerobic zones within the treatment system suggest the presence of crystalline iron oxides and hydroxides such as hematite, lepidocrocite, goethite, and jarosite. At the air/water interface of initial abiotic treatment zones, SO (sub 4) /Fe ratios were low enough (<2.0) for the formation of jarosite and goethite, but as the ratio increased due to treatment and subsequent reductions in iron concentration, jarosite was transformed to other Fe-oxyhydroxysulfates and goethite formation was inhibited. In addition, elevated pH conditions occurring in the later stages of treatment promoted the formation of amorphous iron oxyhydroxides. Biotic wetland cell substrate characterizations suggest the presence of amorphous iron minerals such as ferrihydrite and Fe(OH) (sub 3) . Apparently, high Fe (super 3+) activity, low Eh and low oxygen diffusion rates in the anaerobic subsurface environment inhibit the kinetics of crystalline iron precipitation. Some goethite, lepidocrocite and hematite, however, were observed near the surface in biotic areas and are most likely attributable to increased oxygen levels from surface aeration and/or oxygen transport by plant roots. Alkalinity generation from limestone dissolution within the substrate and bacterially mediated sulfate reduction also has a significant role on the mineral retention process. The formation of gypsum, rhodochrocite and siderite are by-products of alkalinity generating reactions in this system and may have an impact on S, Mn, and Fe solubility controls. Moreover, the buffering of acidity through excess alkalinity appears to facilitate the precipitation and retention of metals within the system.
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Publisher AAPG Bulletin Place of Publication 81 Editor
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Notes (up) Aerobic and anaerobic metal attenuation processes in a constructed wetland treating acid mine drainage; GeoRef; English; 1997-067790; AAPG Eastern Section and the Society for Organic Petrology joint meeting, Lexington, KY, United States, Sep. 27-30, 1997 Approved no
Call Number CBU @ c.wolke @ 16630 Serial 70
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Author Boonstra, J.; van Lier, R.; Janssen, G.; Dijkman, H.; Buisman, C.J.N.
Title Biological treatment of acid mine drainage Type Book Chapter
Year 1999 Publication Process Metallurgy, vol.9, Part B Abbreviated Journal
Volume Issue Pages 559-567
Keywords acid mine drainage adsorption alkaline earth metals arsenic Bingham Canyon Mine bioremediation Budelco Zinc Refinery cadmium copper Cornwall England England Europe Great Britain heavy metals iron magnesium manganese metals Netherlands pH phase equilibria pollution remediation sulfate ion United Kingdom United States Utah Western Europe Wheal Jane Mine zinc 22, Environmental geology
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Publisher Place of Publication Editor Amils, R.; Ballester, A.
Language Summary Language Original Title
Series Editor Series Title Biohydrometallurgy and the environment toward the mining of the 21st century; proceedings of the International biohydrometallurgy symposium IBS'99, Part B, Molecular biology, biosorption, bioremediation Abbreviated Series Title
Series Volume Series Issue Edition
ISSN ISBN 0444501932 Medium
Area Expedition Conference
Notes (up) Biological treatment of acid mine drainage; GeoRef; English; 2000-049809; International biohydrometallurgy symposium IBS'99, Madrid, Spain, June 20-23, 1999 References: 11; illus. incl. 5 tables Approved no
Call Number CBU @ c.wolke @ 16595 Serial 442
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Author Cravotta, C.A., III; Watzlaf, G.R.; Naftz, D.L.; Morrison, S.J.; Fuller, C.C.; Davis, J.A.
Title Design and performance of limestone drains to increase pH and remove metals from acidic mine drainage Handbook of groundwater remediation using permeable reactive barriers; applications to radionuclides, trace metals, and nutrients Type Book Chapter
Year 2002 Publication Abbreviated Journal
Volume Issue Pages
Keywords acid mine drainage; alkaline earth metals; aquatic environment; aquifers; calcium; carbonate rocks; chemical properties; construction; construction materials; crushed stone; dissolved materials; drainage; effluents; ground water; limestone; magnesium; metals; pH; pollution; porous materials; precipitation; retention; saturation; sedimentary rocks; sulfate ion; suspended materials 22, Environmental geology
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Publisher Academic Press Place of Publication Amsterdam Editor
Language Summary Language Original Title
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ISSN ISBN 0125135637 Medium
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Notes (up) Design and performance of limestone drains to increase pH and remove metals from acidic mine drainage Handbook of groundwater remediation using permeable reactive barriers; applications to radionuclides, trace metals, and nutrients; GeoRef; English; 2004-040518; References: 66; illus. incl. 4 tables Approved no
Call Number CBU @ c.wolke @ 5686 Serial 81
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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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ISSN ISBN 9058091821 Medium
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Notes (up) 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 Ziemkiewicz, P.F.; Meek, F.A., Jr.; Skousen, J.G.; Ziemkiewicz, P.F.
Title Long term behavior of acid forming rock; results of 11-year field studies Type Book Chapter
Year 1996 Publication Acid mine drainage control and treatment Abbreviated Journal
Volume Issue Pages
Keywords acid mine drainage; acid rock drainage; alkaline earth metals; alkalinity; calcium; chemical composition; clastic rocks; coal mines; leachate; metals; mines; pH; pollution; prediction; reclamation; remediation; sandstone; sedimentary rocks; shale; spoils; sulfate ion; sulfur; United States; Upshur County West Virginia; waste disposal; waste rock; weathered materials; weathering; 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 (up) Long term behavior of acid forming rock; results of 11-year field studies; GeoRef; English; 2004-051147; Edition: 2 References: 9; illus. incl. 1 table Approved no
Call Number CBU @ c.wolke @ 6357 Serial 190
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