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Guo, F.; Yu, H. |
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Title |
Hydrogeochemistry and treatment of acid mine drainage in southern China |
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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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277-283 |
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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 |
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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 |
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366 |
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Kleinmann, R.L.P. |
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Title |
Acid Mine Water Treatment using Engineered Wetlands |
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Journal Article |
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1990 |
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Int. J. Mine Water |
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9 |
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1-4 |
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269-276 |
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wetlands AMD passive treatment pollution control water treatment abandoned mines biological treatment pH bacterial oxidation wetland sizing sphagnum |
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400 systems installed within 4 years During the last two decades, the United States mining industry has greatly increased the amount it spends on pollution control. The application of biotechnology to mine water can reduce the industry's water treatment costs (estimated at over a million dollars a day) and improve water quality in streams and rivers adversely affected by acidic mine water draining from abandoned mines. Biological treatment of mine waste water is typically conducted in a series of small excavated ponds that resemble, in a superficial way, a small marsh area. The ponds are engineered to first facilitate bacterial oxidation of iron; ideally, the water then flows through a composted organic substrate that supports a population of sulfate-reducing bacteria. The latter process raises the pH. During the past four years, over 400 wetland water treatment systems have been built on mined lands as a result of research by the U.S. Bureau of Mines. In general, mine operators find that the wetlands reduce chemical treatment costs enough to repay the cost of wetland construction in less than a year. Actual rates of iron removal at field sites have been used to develop empirical sizing criteria based on iron loading and pH. If the pH is 6 or above, the wetland area (in2) required is equivalent to the iron. load (grams/day) divided by 10. Theis requirement doubles at a pH of 4 to 5. At a pH below 4, the iron load (grams/day) should be divided by 2 to estimate the area required (in2). |
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0255-6960 |
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Acid Mine Water Treatment using Engineered Wetlands; 1; Fg; AMD ISI | Wolkersdorfer |
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CBU @ c.wolke @ 17368 |
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328 |
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Murdock, D.J.; Fox, J.R.W.; Bensley, J.G. |
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Title |
Treatment of acid mine drainage by the high density sludge process |
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1994 |
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Special Publication – United States. Bureau of Mines, Report: BUMINES-SP-06A-94 |
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241-249 |
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acid mine drainage; concentration; oxidation; pollutants; pollution; remediation; solute transport; sulfides; waste water; water quality 22, Environmental geology |
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Proceedings of the International land reclamation and mine drainage conference and Third international conference on The abatement of acidic drainage; Volume 1 of 4; Mine drainage |
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Treatment of acid mine drainage by the high density sludge process; GeoRef; English; 2007-045177; International land reclamation and mine drainage conference and Third international conference on The abatement of acidic drainage, Pittsburgh, PA, United States, April 24-29, 1994 References: 10; illus. incl. 2 tables |
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CBU @ c.wolke @ 6584 |
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292 |
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Author |
Kringel, R. |
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Title |
Untersuchungen zur Verminderung von Auswirkungen der Pyritoxidation in Abraumsedimenten des Rheinischen Braunkohlenreviers auf die Chemie des Grundwassers |
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1998 |
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178 |
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Braunkohlentagebau Pyrit Oxidation Grubenwasser Gewässerversauerung Neutralisation <Chemie> |
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3-931713-52-0 |
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Bochum, Univ., Diss.; Untersuchungen zur Verminderung von Auswirkungen der Pyritoxidation in Abraumsedimenten des Rheinischen Braunkohlenreviers auf die Chemie des Grundwassers; Darmstadt : DDD, Dr. und Verl.; Bochum, Univ., Diss.; Opac |
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CBU @ c.wolke @ 6941 |
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326 |
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Wisotzky, F. |
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Saure Bergbauwässer (Acid Mine Drainage) und deren Qualitätsverbesserung durch Zugabe von alkalisch wirkenden Zuschlagstoffen zum Abraum : Untersuchungen im Rheinischen Braunkohlenrevier |
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2003 |
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Deutsches gewässerkundliches Jahrbuch |
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167 |
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Rheinisches Braunkohlenrevier Grubenwasser Versauerung Pyrit Oxidation Braunkohlentagebau Bergbaurestsee Gewässerversauerung Hydrogeochemie Neutralisation Zuschlagstoff |
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Saure Bergbauwässer (Acid Mine Drainage) und deren Qualitätsverbesserung durch Zugabe von alkalisch wirkenden Zuschlagstoffen zum Abraum : Untersuchungen im Rheinischen Braunkohlenrevier; Nordrhein-Westfalen / Landesumweltamt; Zugl.: Bochum, Univ., Habil.-Schr., 2003; Opac |
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CBU @ c.wolke @ 6918 |
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205 |
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