| Records |
| Author |
Eger, P.; Melchert, G.; Antonson, D.; Wagner, J. |
| Title |
Magnesium hydroxide as a treatment for acid mine drainage in northern Minnesota |
Type |
Book Chapter |
| Year |
1993 |
Publication |
Proceedings of the Annual National Meeting – American Society for Surface Mining and Reclamation, vol.10 |
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Issue |
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Pages |
204-217 |
| 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 |
| 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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CBU @ c.wolke @ 16743 |
Serial |
393 |
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| Author |
Guo, F.; Yu, H. |
| Title |
Hydrogeochemistry and treatment of acid mine drainage in southern China |
Type |
Book Chapter |
| Year |
1993 |
Publication |
Proceedings of the Annual National Meeting – American Society for Surface Mining and Reclamation, vol.10 |
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Issue |
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Pages |
277-283 |
| Keywords |
acid mine drainage Asia bacteria chemical reactions China coal mines ecology Far East geochemistry hydrochemistry Jiangxi China lime mines oxidation pH pollution sulfides surface water trace elements water quality 22 Environmental geology 02B Hydrochemistry |
| Abstract |
Coal mines and various sulfide ore deposits are widely distributed in Southern China. Acid mine drainage associated with coal and metal sulfide deposits affects water quality in some mined areas of Southern China. Mining operations accelerate this natural deterioration of water quality by exposing greater surface areas of reactive minerals to the weathering effects of the atmosphere, hydrosphere, and biosphere. Some approaches to reduce the effects of acid mine drainage on water quality are adopted, and they can be divided into two aspects: (a) Man-made control technology based on long-term monitoring of acid mine drainage; and, (b) Neutralization of acidity through the addition of lime. It is important that metals in the waste water are removed in the process of neutralization. A new method for calculating neutralization dosage is applied. It is demonstrated that the calculated value is approximately equal to the actual required value. |
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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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Hydrogeochemistry and treatment of acid mine drainage in southern China; GeoRef; English; 2002-028935; 10th annual national meeting of the American Society for Surface Mining and Reclamation, Spokane, WA, United States, May 16, 1993 References: 3; illus. incl. 4 tables |
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CBU @ c.wolke @ 16744 |
Serial |
366 |
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| Author |
Marquardt, K. |
| Title |
Muelldeponie-Sickerabwasseraufbereitung unter Anwendung der Membrantechnik. Waste disposal-seepage waters processing by use of the membrane technique Zeitgemaesse Deponietechnik |
Type |
Book Chapter |
| Year |
1987 |
Publication |
Stuttgarter Berichte zur Abfallwirtschaft, vol.24 |
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Pages |
187-234 |
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case studies Central Europe Europe feasibility studies filters Germany methods mine drainage osmosis pollution volatilization water pollution 21, Hydrogeology |
| Abstract |
Seepage waters from waste disposal sites are highly polluted waste waters. Waste water treatment methods such as flocculation, sedimentation, or biological treatment being usual up to now are no longer adequate to purify these waters. That is why this article investigates modern techniques such as ultra-filtration, reverse osmosis, vaporization, stripping. The following combination has proved to be effective: membrane method (two-stage reverse osmosis with tubular and package modul) for pre- and reprocessing, vaporization for solidifying the solvents, stripping in order to extract volatile matter. Methodology, usability and results are introduced and illustrated here in detail. |
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Muelldeponie-Sickerabwasseraufbereitung unter Anwendung der Membrantechnik. Waste disposal-seepage waters processing by use of the membrane technique Zeitgemaesse Deponietechnik; GeoRef In Process; German; 2815-10; Vertieferseminar “Zeitgemaesse Deponietechnik” an der Universitaet Stuttgart, Stuttgart, Federal Republic of Germany, Mar. 25-26, 1987 References: 34; tables, charts, sketch maps |
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CBU @ c.wolke @ 16766 |
Serial |
309 |
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| Author |
Curi, A.C.; Granda, W.J.V.; Lima, H.M.; Sousa, W.T. |
| Title |
Zeolites and their application in the decontamination of mine waste water |
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Journal Article |
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2006 |
Publication |
Informacion Tecnologica |
Abbreviated Journal |
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17 |
Issue |
6 |
Pages |
111-118 |
| Keywords |
adsorption decontamination effluents industrial waste ion exchange metallurgical industries metallurgy mining mining industry porosity wastewater treatment zeolites zeolites decontamination mine waste water genesis porosity adsorption ionic exchange mineral metallurgical effluents mercury pollution artisan mining activities heavy metals removal metal mining effluents mercury vapors ovens fire amalgams Manufacturing and Production |
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This paper describes the genesis, structure and classification of natural zeolites, including their most relevant properties such as porosity, adsorption and ionic exchange. The use of natural zeolites in the treatment of effluents containing heavy metals is reviewed based on current literature. These uses are focused on mineral-metallurgical effluents and mercury pollution related to artisan mining activities. The study shows that natural zeolites are efficient in removal of heavy metals in metal mining effluents, can be produced and improved at a low cost, and can also be used to adsorb mercury vapors from ovens used to fire amalgams. |
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0716-8756 |
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Zeolites and their application in the decontamination of mine waste water; 9532002; Journal Paper; SilverPlatter; Ovid Technologies |
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no |
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CBU @ c.wolke @ 16784 |
Serial |
409 |
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| Author |
LaPointe, F.; Fytas, K.; McConchie, D. |
| Title |
Using permeable reactive barriers for the treatment of acid rock drainage |
Type |
Journal Article |
| Year |
2005 |
Publication |
International journal of surface mining, reclamation and environment |
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19 |
Issue |
1 |
Pages |
57-65 |
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Pollution and waste management non radioactive Groundwater problems and environmental effects geological abstracts: environmental geology (72 14 2) geomechanics abstracts: excavations (77 10 10) waste management remediation mining industry pollution control acid mine drainage reactive barrier aluminium industry effluents industrial waste mineral processing industry oxidation waste handling permeable reactive barriers acid rock drainage treatment acid mine drainage environmental problem Canadian mineral industry oxidation sulphide minerals mine waste mine tailings heavy metals acid remediation technology metallurgical residues aluminium extraction industry acid mine effluents Manufacturing and Production acid mine drainage Bauxsol Canada disposal barriers effluents experimental studies heavy metals instruments oxidation permeable reactive barriers pollutants pollution pyrite pyrrhotite remediation sulfides tailings waste disposal waste management |
| Abstract |
Acid mine drainage (AMD) is the most serious environmental problem facing the Canadian mineral industry today. It results from oxidation of sulphide minerals (e.g. pyrite or pyrrhotite) contained in mine waste or mine tailings and is characterized by acid effluents rich in heavy metals that are released into the environment. A new acid remediation technology is presented, by which metallurgical residues from the aluminium extraction industry are used to construct permeable reactive barriers (PRBs) to treat acid mine effluents. This technology is very promising for treating acid mine effluents in order to decrease their harmful environmental effects |
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1389-5265 |
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Using permeable reactive barriers for the treatment of acid rock drainage; 8467608; Journal Paper; SilverPlatter; Ovid Technologies |
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no |
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CBU @ c.wolke @ 16786 |
Serial |
12 |
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