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Author |
Huyssteen, E. van |
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Title |
Evaluation of alternative dry covers for the inhibition of acid mine drainage from tailings |
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Journal Article |
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1994 |
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Bergbau Abfallbeseitigung Entsäuerung |
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Evaluation of alternative dry covers for the inhibition of acid mine drainage from tailings; Ottawa, Ontario; CANMET; Opac |
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CBU @ c.wolke @ 7062 |
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345 |
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Author |
Bhole, A.G. |
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Title |
Acid-Mine Drainage And Its Treatment |
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Journal Article |
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1994 |
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Impact of Mining on the Environment |
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131-141 |
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mine water treatment |
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Acid-Mine Drainage And Its Treatment; Isip:A1994ba02k00015; Times Cited: 0; ISI Web of Science |
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CBU @ c.wolke @ 8945 |
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146 |
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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 |
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Proceedings, International Land Reclamation and Mine Drainage Conference |
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1 |
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195-204 |
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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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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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Author |
Limited, S.C. |
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Book Whole |
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Year |
1994 |
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179 pp |
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AMD acid mine drainage mine water treatment active treatment |
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The Mine Environment Neutral Drainage [MEND] Program |
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3.32.1 |
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MEND Report |
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Acid Mine Drainage – Status of Chemical Treatment and Sludge Management Practices; 2; VORHANDEN | AMD ISI | Wolkersdorfer; als Datei vorhanden |
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CBU @ c.wolke @ 9890 |
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315 |
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