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Eger, P.; Melchert, G.; Antonson, D.; Wagner, J. |
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Magnesium hydroxide as a treatment for acid mine drainage in northern Minnesota |
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1993 |
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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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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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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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CBU @ c.wolke @ 16743 |
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393 |
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Bridwell, R.J.; Travis, B.J.; Stone, W. |
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Remediation of acid mine drainage Ground water technology and tasks in the 90's |
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1993 |
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acid mine drainage; ground water; iron sulfides; kinetics; mathematical models; movement; pollutants; remediation; sulfides; water quality 22, Environmental geology |
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Remediation of acid mine drainage Ground water technology and tasks in the 90's; GeoRef; English; 1996-020061; Rocky Mountain ground water conference and 6th annual conference American Water Resource Association, New Mexico Section , on Ground water technology and tasks in the 90's, Albuquerque, NM, United States, Oct. 27-29, 1993 |
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CBU @ c.wolke @ 6703 |
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436 |
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Amacher, M.C.; Brown, R.W.; Kotuby-Amacher, J.; Willis, A. |
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Adding sodium hydroxide to study metal removal in a stream affected by acid mine drainage |
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1993 |
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Research Paper, US Department of Agriculture, Forest Service |
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465 |
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17 |
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pH stream mine drainage remediation zinc copper sodium hydroxide USa Montana Beartooth Mountains Fisher Creek 3 Geology |
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Fisher Creek, a stream affected by acid mine drainage in the Beartooth Mountains of Montana, was studied to determine the extent to which copper (Cu) and zinc (Zn) would be removed from stream water when pH was increased by a pulse of sodium hydroxide (NaOH). Although the pH adjustment study indicated that precipitated Fe(OH) “SUB 3” (am) could rapidly remove Cu and Zn from a stream affected by acid mine drainage, the pH should be maintained in an optimal range (7 to 8.5) to maximize removal by adsorption. -from Authors |
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Adding sodium hydroxide to study metal removal in a stream affected by acid mine drainage; (1022908); 94k-02459; Using Smart Source Parsing INT- pp; Geobase |
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CBU @ c.wolke @ 17566 |
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484 |
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Aljoe, W.W.; Hawkins, J.W. |
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Neutralization of acidic discharges from abandoned underground coal mines by alkaline injection |
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1993 |
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Report of investigations |
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37 |
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Neutralization of acidic discharges from abandoned underground coal mines by alkaline injection; Washington, D.C. : U.S. Dept. of the Interior, Bureau of Mines; Opac |
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CBU @ c.wolke @ 6974 |
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486 |
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