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Agency, U.S.E.P. |
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Book Whole |
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2006 |
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Acid mine drainage California Alpine County Bioreactors California Alpine County Bioremediation California Alpine County Hazardous waste site remediation California Alpine County |
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Research Laboratory, Office of Research and Development, United States Environmental Protection Agency |
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Cincinnati, OH. |
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Compost-free bioreactor treatment of acid rock drainage Leviathan Mine, California : innovative technology evaluation report |
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2 |
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Compost-free bioreactor treatment of acid rock drainage Leviathan Mine, California : innovative technology evaluation report; Cincinnati, OH. : National Risk Management Research Laboratory, Office of Research and Development, United States Environmental Protection Agency; Opac |
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Call Number |
CBU @ c.wolke @ 7248 |
Serial |
490 |
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Title |
'Green' company offers desalination technology |
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Journal Article |
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Year |
1998 |
Publication |
Water Sewage and Effluent |
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18 |
Issue |
4 |
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9-11 |
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Groundwater problems and environmental effects geomechanics abstracts: excavations (77 10 10) acid mine drainage environmental effect mine drainage |
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Water and wastewater treatment activities, projects and capabilities of South African environmental engineering specialist Envig are detailed. The company, as part of the Weir Wesgarth Consortium, has pre-qualified for the major Namibian Water Supply Project, one of the largest of its kind to date in southern Africa. This project involves the desalination of seawater to meet increasing water demand and shortfalls. Envig, if awarded the contract, would be involved in construction of three or four reverse osmosis or mechanical vapour compression sea water desalination plants and associated infrastructure. The company is also involved in a mine water desalination project at the Eskom Tutuka Power Station. A reverse osmosis plant using low fouling maintenance is being installed to deal with acid mine drainage water. Details of the design and operation of this plant are given. |
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0257-8700 |
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'Green' company offers desalination technology; 0432290; South-Africa; Geobase |
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Call Number |
CBU @ c.wolke @ 17548 |
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496 |
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Author |
Benner, S.G.; Blowes, D.W.; Ptacek, C.J. |
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Title |
A full-scale porous reactive wall for prevention of acid mine drainage |
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Journal Article |
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Year |
1997 |
Publication |
Ground Water Monitoring and Remediation |
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17 |
Issue |
4 |
Pages |
99-107 |
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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 |
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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. |
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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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Call Number |
CBU @ c.wolke @ 17555 |
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67 |
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Author |
Skousen, J.; Rose, A.; Geidel, G.; Foreman, J.; Evans, R.; Hellier, W. |
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A handbook of technologies for avoidance and remediation of acid mine drainage |
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RPT |
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1998 |
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acid mine drainage bioremediation coal mines constructed wetlands disposal barriers ion exchange mines pollution pumping recharge remediation reverse osmosis surface water technology waste disposal waste management water treatment wetlands 22, Environmental geology |
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Acid Drainage Technology Initiative, A. and R.W.G.U.S. |
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A handbook of technologies for avoidance and remediation of acid mine drainage; 2001-074240; GeoRef; English; References: 72; illus. incl. 5 tables West Virginia University, National Mine Land Reclamation Center, Morgantown, WV, United States |
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no |
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Call Number |
CBU @ c.wolke @ 16615 |
Serial |
245 |
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Author |
Tredinnick, I.A.; Cornwell, P.J. |
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Title |
A manager's operational perspective of AMD management at the Pajingo Gold Mine. Die Beherrschung des AMD-Problems in der Pajingo Gold Mine aus der Sicht des Managers |
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Conference Article |
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Year |
1995 |
Publication |
Second Australian Acid Mine Drainage Workshop, Charters Towers, AU, 28 31 March 1995 |
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43-51 |
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Keywords |
Erzbergbau Gold Tagebau Untertagebau Lebensdauer Australien Umweltschutz Projektplanung Projektmanagement Unternehmensführung Schwefelsäure Minimierung Geochemie geochemische-Messung Kapselung Rückstand Erzaufbereitung Einlagerung Betriebskosten Acid mine drainage |
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Nach einer Beschreibung der Bergbauaktivitäen (Tief- und Tagebau) in der australischen Goldlagerstätte Pajingo wird detailliert auf die Bemühungen zur Gewährleistung des Umweltschutzes und vor allem auf die Minimierung der Freisetzung saurer Grubenwässer eingegangen. Die bei der Lösung der Aufgabenstellung zu beachtenden Besonderheiten resultieren aus der kurzen Lebensdauer der Grube, in der die 1987 begonnene Abbautätigkeit bereits im Jahr 1996 wieder beendet wurde. Aus diesem Grund wurden bereits im Planungsstadium und während der Abbautätigkeit vorbeugende Strategien zur Minimierung des AMD-Problems verwirklicht, die ausführlich beschrieben werden. Sulfidische Berge und Aufbereitungsrückstände wurden planmäßig so aufgehaldet oder eingelagert, daß sie stets von einer Schutzschicht aus oxidischem Material umgeben waren. Durch diese Einkapselung reaktionsfähiger sulfidischer Bestandteile sowie die Abdeckung der Tailings des Aufbereitungsprozesses gelang es, die Auswirkungen der Säuregenerierung zu minimieren. Es werden die betrieblichen Erfahrungen, die technologischen Besonderheiten und die Monitoringaktivitäten beschrieben. Es werden auch Angaben zum Kostenaufwand gemacht. |
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A manager's operational perspective of AMD management at the Pajingo Gold Mine. Die Beherrschung des AMD-Problems in der Pajingo Gold Mine aus der Sicht des Managers; BERG, Copyright FIZ Technik e.V.; EN Englisch; 0-646-24771-9; U9609 0025 586; 11347, BERG , 07.09.96; Words: 502; 9 Seiten, 1 Bild, 3 Tabellen, 2 Quellen 3UM *Umweltschadstoffe, toxikologie* 3UX *Umweltbelastung, technik* 3PAB *Aufbereitung anorganischer, mineralischer Rohstoffe* 3MZ *Bergbau, Tunnelbau, Erdöl /Erdgasförderung, Bohrtechnik* |
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CBU @ c.wolke @ 17604 |
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223 |
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