Records |
Author |
Kleinmann, R.L.P. |
Title |
Acid Mine Water Treatment using Engineered Wetlands |
Type |
Journal Article |
Year ![sorted by Year field, ascending order (up)](img/sort_asc.gif) |
1990 |
Publication |
Int. J. Mine Water |
Abbreviated Journal |
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Volume |
9 |
Issue |
1-4 |
Pages |
269-276 |
Keywords |
wetlands AMD passive treatment pollution control water treatment abandoned mines biological treatment pH bacterial oxidation wetland sizing sphagnum |
Abstract |
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 |
Serial |
328 |
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Author |
Norton, P.J. |
Title |
The Control of Acid Mine Drainage with Wetlands |
Type |
Journal Article |
Year ![sorted by Year field, ascending order (up)](img/sort_asc.gif) |
1992 |
Publication |
Mine Water Env. |
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Volume |
11 |
Issue |
3 |
Pages |
27-34 |
Keywords |
acid mine drainage construction chemistry artificial wetlands pollution control performance evaluation coal mines pollution control and prevention |
Abstract |
The recent increases in environmental legislation, especially in the USA'have meant that there is a need on behalf of the mining companies for more judicious operational planning and more thorough restoration techniques in order to reduce costs and prevent violation of the smctly enforced regulations. Water pollution is probably the greatest problem and many less enlightened operators, especially for example, in surface coal milling in Pennsylvania, have been forced into liquidation after having been unable to meet the severe restrictions on Acid Mine Drainage (AMD). The problems of AMD are also inherent in most forms of metalliferous and coal mining and also in some types of aggregate quarrying. As excavations go deeper in search of ever diminishing reserves then they are more likely to encounter groundwater which can become polluted if insufficient care is not taken. It is to be expected that the laws will also become more severe than they are at present in Europe and methods of treatment of AMD will need to be developed that are more efficient than the costly chemical methods currently used. Research by the author and others into the source of AMD pollution and its treatment with engineered wetlands and other operational methods are discussed in the paper. The methods have- the distinct benefit that they are cheap to install, are cost effective over a long period with the minimum of supervision and are environmentally acceptable to the planning and regulatory authorities. |
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The Control of Acid Mine Drainage with Wetlands; 1; 1 Abb.; AMD ISI | Wolkersdorfer |
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no |
Call Number |
CBU @ c.wolke @ 17401 |
Serial |
284 |
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Author |
Nairn, R.W.; Hedin, R.S. |
Title |
Designing wetlands for the treatment of polluted coal mine drainage |
Type |
Book Chapter |
Year ![sorted by Year field, ascending order (up)](img/sort_asc.gif) |
1992 |
Publication |
Wetlands; proceedings of the 13th annual conference; Society of Wetland Scientists |
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Pages |
224-229 |
Keywords |
acidic composition; alkalinity; Appalachian Plateau; Appalachians; biodegradation; carbonate rocks; chemical properties; coal mines; constructed wetlands; construction; limestone; mine drainage; mines; North America; Pennsylvania; pollutants; pollution; reclamation; remediation; sedimentary rocks; United States; western Pennsylvania; wetlands 22, Environmental geology |
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Landin, M.C. |
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Designing wetlands for the treatment of polluted coal mine drainage; GeoRef; English; 1996-062750; 13th annual conference of the Society of Wetland Scientists, New Orleans, LA, United States, May 31-June 6, 1992 References: 7 |
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Call Number |
CBU @ c.wolke @ 6720 |
Serial |
289 |
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Author |
Rabenhorst, M.C.; James, B.R. |
Title |
Acid mine drainage remediation via sulfidization in wetlands Fiscal year 1992 annual report |
Type |
RPT |
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1993 |
Publication |
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Pages |
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Keywords |
acid mine drainage; anaerobic environment; Appalachians; concentration; decontamination; ferric iron; iron; manganese; marshes; Maryland; metals; mires; North America; oxidation; pollutants; pollution; pore water; remediation; sulfidization; transport; United States; water quality; water treatment; wetlands 22, Environmental geology |
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University of Maryland, W.R.R.C.C.P.M.D.U.S. |
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Acid mine drainage remediation via sulfidization in wetlands Fiscal year 1992 annual report; 1998-034327; GeoRef; English; illus. incl. 1 table University of Maryland, Water Resources Research Center, College Park, MD, United States |
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CBU @ c.wolke @ 6684 |
Serial |
267 |
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Author |
Guo, F.; Yu, H. |
Title |
Hydrogeochemistry and treatment of acid mine drainage in southern China |
Type |
Book Chapter |
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1993 |
Publication |
Proceedings of the Annual National Meeting – American Society for Surface Mining and Reclamation, vol.10 |
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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 |
Approved |
no |
Call Number |
CBU @ c.wolke @ 16744 |
Serial |
366 |
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