Records |
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Benner, S.G.; Blowes, D.W.; Ptacek, C.J. |
Title |
A full-scale porous reactive wall for prevention of acid mine drainage |
Type |
Journal Article |
Year |
1997 |
Publication |
Ground Water Monitoring and Remediation |
Abbreviated Journal |
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Volume |
17 |
Issue |
4 |
Pages |
99-107 |
Keywords |
acid mine drainage alkalinity bacteria Canada case studies concentration dissolved materials drainage Eastern Canada ground water mines observation wells Ontario permeability pH pollution porous materials recharge reduction remediation site exploration Sudbury District Ontario sulfate ion surface water waste disposal water pollution Groundwater quality Groundwater problems and environmental effects Pollution and waste management non radioactive geographical abstracts: physical geography hydrology (71 6 11) geomechanics abstracts: excavations (77 10 10) geological abstracts: environmental geology (72 14 2) groundwater protection permeable barrier acid mine drainage aquifer groundwater acid min drainage contamination permeable barrier groundwater protection permeable barrier acid mine drainage aquifer Canada, Ontario, Sudbury, Nickel Rim |
Abstract |
The generation and release of acidic drainage containing high concentrations of dissolved metals from decommissioned mine wastes is an environmental problem of international scale. A potential solution to many acid drainage problem is the installation of permeable reactive walls into aquifers affected by drainage water derived from mine waste materials. A permeable reactive wall installed into an aquifer impacted by low-quality mine drainage waters was installed in August 1995 at the Nickel Rim mine site near Sudbury, Ontario. The reactive mixture, containing organic matter, was designed to promote bacterially mediated sulfate reduction and subsequent metal sulfide precipitation. The reactive wall is installed to an average depth of 12 feet (3.6 m) and is 49 feet (15 m) long perpendicular to ground water flow. The wall thickness (flow path length) is 13 feet (4 m). Initial results, collected nine months after installation, indicate that sulfate reduction and metal sulfide precipitation is occurring. Comparing water entering the wall to treated water existing the wall, sulfate concentrations decrease from 2400 to 4600 mg/L to 200 to 3600 mg/L; Fe concentration decrease from 250 to 1300 mg/L to 1.0 to 40 mg/L, pH increases from 5.8 to 7.0; and alkalinity (as CaCO<inf>3</inf>) increases from 0 to 50 mg/L to 600 to 2000 mg/L. The reactive wall has effectively removed the capacity of the ground water to generate acidity on discharge to the surface. Calculations based on comparison to previously run laboratory column experiments indicate that the reactive wall has potential to remain effective for at least 15 years. |
Address |
Dr. S.G. Benner, Earth Sciences Department, University of Waterloo, Waterloo, Ont. N2L 3G1, Canada |
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1069-3629 |
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Review; A full-scale porous reactive wall for prevention of acid mine drainage; 0337197; United-States 46; file:///C:/Dokumente%20und%20Einstellungen/Stefan/Eigene%20Dateien/Artikel/10621.pdf; Geobase |
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CBU @ c.wolke @ 17555 |
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67 |
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Bertrand, S. |
Title |
Performance of a nanofiltration plant on hard and highly sulphated water during two years of operation |
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Journal Article |
Year |
1997 |
Publication |
Desalination |
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Volume |
113 |
Issue |
2-3 |
Pages |
277-281 |
Keywords |
mine water treatment |
Abstract |
A highly sulphated, hard water from a flooded iron mine was treated by nanofiltration for the production of drinking water (125 m(3)/h). This paper introduces the context and summarizes the configuration and operating conditions of the plant. The process performance in terms of product water quality and permeability during the first 2 years is presented and discussed. |
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Performance of a nanofiltration plant on hard and highly sulphated water during two years of operation; Wos:000071218200023; Times Cited: 5; ISI Web of Science |
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CBU @ c.wolke @ 17153 |
Serial |
134 |
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Author ![sorted by Author field, ascending order (up)](img/sort_asc.gif) |
Bliss, L.N.; Sellstone, C.M.; Nicholson, A.D.; Kempton, J.H. |
Title |
Buffering of acid rock drainage by silicate minerals |
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Journal Article |
Year |
1997 |
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acid mine drainage; buffers; chemical reactions; decontamination; environmental analysis; geochemistry; pH; pollution; remediation; silicates; sulfate ion; USGS 22 Environmental geology; 02A General geochemistry |
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Open-File Report - U. S. Geological Survey, Report: OF 97-0496 |
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4th International symposium on Environmental geochemistry; proceedings |
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1998-068723; 4th International symposium on Environmental geochemistry, Vail, CO, United States, Oct. 5-10, 1997 U. S. Geol. Surv., Denver, CO, United States; GeoRef; English |
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CBU @ c.wolke @ 6286 |
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446 |
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Author ![sorted by Author field, ascending order (up)](img/sort_asc.gif) |
Bowell, R.J.; Connelly, R.J.; Ellis, J.; Cowan, J.; Wood, A.; Barta, J.; Edwards, P. |
Title |
A review of sulfate removal options from mine waters |
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Journal Article |
Year |
1997 |
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acid mine drainage; bacteria; bioremediation; decontamination; effluents; ground water; legislation; osmosis; oxidation; pollutants; pollution; remediation; reverse osmosis; selenites; sulfate ion; toxic materials; USGS; water treatment 22 Environmental geology; 02A General geochemistry |
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Open-File Report - U. S. Geological Survey, Report: OF 97-0496 |
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4th International symposium on Environmental geochemistry; proceedings |
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1998-068727; 4th International symposium on Environmental geochemistry, Vail, CO, United States, Oct. 5-10, 1997 U. S. Geol. Surv., Denver, CO, United States; GeoRef; English |
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CBU @ c.wolke @ 6287 |
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438 |
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Author ![sorted by Author field, ascending order (up)](img/sort_asc.gif) |
Camus, M. |
Title |
Le traitement des eaux de mine desaffectees. Die Aufbereitung von Wässern aus stillgelegten Bergwerken. Treating water from closed mines |
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Journal Article |
Year |
1997 |
Publication |
Mines et Carrieres |
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Feb |
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38-39 |
Keywords |
Erzbergbau Frankreich Blei Silber Zink Eisen pH-Wert Quellwasser Flusswasserverschmutzung Wasseraufbereitungsanlage chemische- Abwasserreinigung chemische-Reaktion Kennziffer Wirkungsgrad chemische-Analyse Fließbild Belüftung Ausflocken Neutralisation=chemische-Reaktion Grubenwasserreinigung |
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In einem alten französischen Bergwerk, in dem früher Blei und Silber abgebaut wurden, kam es nach dem Wiederanstieg des Grundwassers zu einer erhöhten Schwermetallbelastung von Quellgebieten, die einen Fluß mit Forellenbesatz schädigten. Zur Beseitigung dieser Grundwasserverunreinigung wurde das saure Grubenwasser mit erhöhten Eisen- und Zinkgehalten übertage gefaßt und einer Wasseraufbereitung unterzogen. In der für einen Durchsatz von 100 m(exp 3)/h konzipierten Wasseraufbereitung wurden die Schadstoffbestandteile durch Oxidation und anschließende Neutralisation mit Kalk (Anhebung des pH-Wertes auf 8,2 bis 8,3) gefällt, durch Zugabe eines Flockungsmittels gebunden und die Schlammbestandteile anschließend einem Eindicker und Filterpressen zugeführt. Der Kalkverbrauch wird mit 240 kg/d angegeben. Die tabellarisch zusammengestellten Analysenergebnisse zeigen, daß die Wasseraufbereitung einen sehr guten Wirkungsgrad hatte. Neben einer Anhebung des pH-Wertes von 6,5 auf 8,2 konnten die Schwermetallgehalte bei Fe von 22 mg/l auf 0,09 mg/l und bei Zn von 38 mg/l auf 0,4 mg/l abgesenkt werden. |
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Le traitement des eaux de mine desaffectees. Die Aufbereitung von Wässern aus stillgelegten Bergwerken. Treating water from closed mines; 13313, BERG , 30.04.97; Words: 501; U9705 0024 586; 2 Seiten, 1 Bild, 1 Tabelle 3UM *Umweltschadstoffe, toxikologie* 3UX *Umweltbelastung, technik* 3MZ *Bergbau, Tunnelbau, Erdöl /Erdgasförderung, Bohrtechnik* 3PL *chemische Verfahrenstechnik, chemische Reaktionstechnik*; BERG, Copyright FIZ Technik e.V.; FR Französisch |
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CBU @ c.wolke @ 17601 |
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424 |
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