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Author |
Wiseman, I. |
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Title |
Constructed wetlands for minewater treatment |
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RPT |
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Year |
2002 |
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Abbreviated Journal |
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125 |
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Keywords |
Sewage Ecology Constructed wetlands — Wales Mineral industries — Waste disposal Mine water Water quality management — Wales Pelenna minewaters Water pollution & oil pollution Hydrology & limnology |
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Environment Agency |
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Bristol, England |
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Constructed wetlands for minewater treatment; Opac |
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CBU @ c.wolke @ 7122 |
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207 |
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Author |
Hazen, J.M. |
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Title |
Acid mine drainage characterization and remediation using a combination of hydrometric measurements, isotopes and dissolved solutes |
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Book Whole |
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Year |
2000 |
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Keywords |
Acid mine drainage Metals Environmental aspects Water quality Colorado Measurement |
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Ph.D. thesis |
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University of Colorado, |
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Acid mine drainage characterization and remediation using a combination of hydrometric measurements, isotopes and dissolved solutes; Opac |
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no |
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Call Number |
CBU @ c.wolke @ 7243 |
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357 |
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Author |
Blowes, D.W.; Ptacek, C.J.; Benner, S.G.; McRae, C.W.T.; Puls, R.W. |
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Title |
Treatment of dissolved metals using permeable reactive barriers |
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Journal Article |
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Year |
1998 |
Publication |
Groundwater Quality: Remediation and Protection |
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250 |
Pages |
483-490 |
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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 |
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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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0144-7815 |
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Treatment of dissolved metals using permeable reactive barriers; Isip:000079718200072; Times Cited: 0; ISI Web of Science |
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Call Number |
CBU @ c.wolke @ 8601 |
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178 |
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Author |
Fricke, J.; Blickwedel, R.; Hagerty, P. |
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Title |
Biotreatment of metal mine waste waters; case histories |
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Journal Article |
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Year |
1997 |
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Open-File Report – US Geological Survey |
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Of 97-0496 |
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25 |
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Keywords |
abandoned mines acid mine drainage bacteria bioremediation chemical composition concentration efficiency geochemistry metals mines pollution remediation USGS waste water water quality water treatment |
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0196-1497 |
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Biotreatment of metal mine waste waters; case histories; 1; GeoRef: 98-68755 160101 / € 0; AMD ISI | Wolkersdorfer |
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no |
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Call Number |
CBU @ c.wolke @ 9627 |
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375 |
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Author |
Kepler, D.A.; Mc Cleary, E.C. |
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Title |
Successive Alkalinity-Producing Systems (SAPS) for the Treatment of Acid Mine Drainage |
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Journal Article |
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Year |
1994 |
Publication |
Proceedings, International Land Reclamation and Mine Drainage Conference |
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1 |
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195-204 |
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Keywords |
acid mine drainage; alkalinity; anaerobic environment; calcium carbonate; chemical reactions; experimental studies; pH; pollutants; pollution; remediation; water quality SAPS mine water RAPS |
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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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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 |
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CBU @ c.wolke @ 9722 |
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55 |
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