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Author |
Diz, H.R. |
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Title |
Chemical and biological treatment of acid mine drainage for the removal of heavy metals and acidity |
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Book Whole |
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Year |
1997 |
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Keywords |
acid mine drainage; copper; effluents; ferrous iron; heavy metals; iron; manganese; metals; nickel; oxidation; pH; pollution; precipitation; rates; tailings; temperature; waste water; zinc 22, Environmental geology |
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Ph.D. thesis |
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Publisher |
Virginia Polytechnic Institute and State University, |
Place of Publication |
Blacksburg |
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Chemical and biological treatment of acid mine drainage for the removal of heavy metals and acidity; GeoRef; English |
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CBU @ c.wolke @ 6316 |
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400 |
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Author |
Herbert, R.B., Jr.; Benner, S.G.; Blowes, D.W. |
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Title |
Reactive barrier treatment of groundwater contaminated by acid mine drainage; sulphur accumulation and sulphide formation |
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Book Chapter |
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Year |
1998 |
Publication |
Groundwater Quality: Remediation and Protection |
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451-457 |
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Keywords |
acid mine drainage Canada chemical analysis contaminant plumes Eastern Canada ground water hydraulic conductivity hydrolysis Nickel Rim Mine Ontario pH pollution porosity pyrrhotite remediation sample preparation Sudbury Basin sulfides sulfur tailings water pollution 22, Environmental geology |
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Abstract |
A permeable reactive barrier was installed in August 1995 at the Nickel Rim Mine near Sudbury, Ontario, Canada, for the passive remediation of groundwater contaminated with acid mine drainage. The reactive component of the barrier consists of a mixture of municipal and leaf compost and wood chips: the organic material promotes bacterially-mediated sulphate reduction. Hydrogen sulphide, a product of sulphate reduction, may then complex with aqueous ferrous iron and precipitate as iron sulphide. This study presents the solid phase sulphur chemistry of the reactive wall after two years of operation, and discusses the formation and accumulation of iron sulphide minerals in the reactive material. The results from the solid-phase chemical analysis of core samples indicate that there is an accumulation of reduced inorganic sulphur in the reactive wall, with levels reaching 190 mu mol g (super -1) (dry weight) by July 1997. |
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IAHS-AISH Publication, vol.250 |
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Herbert, M.; Kovar, K. |
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1901502554 |
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Reactive barrier treatment of groundwater contaminated by acid mine drainage; sulphur accumulation and sulphide formation; GeoRef; English; 1999-065115; GQ 98 conference, Tubingen, Federal Republic of Germany, Sept. 21-24, 1998 References: 15; illus. |
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Call Number |
CBU @ c.wolke @ 16621 |
Serial |
65 |
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Author |
Eger, P.; Melchert, G.; Antonson, D.; Wagner, J. |
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Title |
Magnesium hydroxide as a treatment for acid mine drainage in northern Minnesota |
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Book Chapter |
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Year |
1993 |
Publication |
Proceedings of the Annual National Meeting – American Society for Surface Mining and Reclamation, vol.10 |
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204-217 |
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Keywords |
acid mine drainage acidification alkaline earth metals chemical properties cobalt copper drainage experimental studies hydroxides laboratory studies lime magnesium magnesium hydroxide metals Minnesota nickel northern Minnesota oxides pH pollution porous materials reagents remediation residence time trace metals United States waste disposal zinc 22, Environmental geology |
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Abstract |
Three alkaline materials were investigated for their suitability to treat acid mine drainage generated by a research facility located at a remote site in northern Minnesota. The materials investigated were hydrated lime, sodium hydroxide, and magnesium hydroxide. All three reagents were successful at raising pH and removing trace metals from the drainage, but the magnesium hydroxide had the added benefit of producing a maximum pH of approximately 9.5, while the other two reagents resulted in pH values of 12 and greater. In addition, the magnesium hydroxide was available as a high solid content slurry (58%) which simplified application and handling, and which produced the lowest volume of sludge of the materials tested. |
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Zamora, B.A.; Connolly, R.E. |
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The challenge of integrating diverse perspectives in reclamation |
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Magnesium hydroxide as a treatment for acid mine drainage in northern Minnesota; GeoRef; English; 2002-028930; 10th annual national meeting of the American Society for Surface Mining and Reclamation, Spokane, WA, United States, May 16, 1993 References: 7; illus. incl. 4 tables |
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Call Number |
CBU @ c.wolke @ 16743 |
Serial |
393 |
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