| Records |
| Author |
Kleinmann, R.L.P. |
| Title |
Acid Mine Water Treatment using Engineered Wetlands |
Type |
Journal Article |
Year  |
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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| ISSN |
0255-6960 |
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| Notes |
Acid Mine Water Treatment using Engineered Wetlands; 1; Fg; AMD ISI | Wolkersdorfer |
Approved |
no |
| Call Number |
CBU @ c.wolke @ 17368 |
Serial |
328 |
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| Author |
Okuda, T.; Ema, S.; Ishizaki, C.; Fujimoto, J. |
| Title |
Mine drainage treatment and ferrite sludge application |
Type |
Journal Article |
| Year |
1991 |
Publication |
NEC Technical Journal |
Abbreviated Journal |
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| Volume |
44 |
Issue |
5 |
Pages |
4-16 |
| Keywords |
ferrite applications mining water treatment mine drainage treatment waste water treatment ions metal recovery catalysts environmental problems solution ferrite sludge application iron oxidation bacteria ferrite formation process mine drainage Matsuo Mine magnetic marking materials magnetic fluid metal separation semiactive magnetic damper batteries fish gathering cement tracer Electrical and Electronic Engineering Manufacturing and Production |
| Abstract |
The `ferrite process' is an excellent method for treating waste water containing iron and arsenic, but cannot be directly applied to mine drainage where silicon and aluminum ions are present, because they strongly inhibit ferrite formation. As a result of the development of related technologies such as the elimination of silicon, the concentration of iron, and the oxidation of ferrous ions using iron-oxidation bacteria, a new ferrite formation process has been developed and applied to the mine drainage of the Matsuo Mine. The paper discusses the application of the ferrite sludge to magnetic marking materials, magnetic fluid for metal separation and recovery, and the semiactive magnetic damper is described. The related technologies which will be expected to play an important role in solving the environmental problems are also described. These technologies will change the ferrite sludge to beneficial materials, which can be used for carbon dioxide decomposing catalysts, reuse of dry batteries, fish gathering blocks, and cement tracer for ground improvement |
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0285-4139 |
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| Notes |
Mine drainage treatment and ferrite sludge application; 3991072; Journal Paper; SilverPlatter; Ovid Technologies |
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no |
| Call Number |
CBU @ c.wolke @ 16787 |
Serial |
279 |
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| Author |
Hart, W.M. |
| Title |
Prediction and amelioration of acid mine drainage |
Type |
Book Whole |
| Year |
1992 |
Publication |
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acid mine drainage; leaching; North Carolina; oxidation; pH; phosphate ion; porosimetry; prediction; remediation; SEM data; United States; West Virginia 22, Environmental geology |
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Ph.D. thesis |
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West Virginia University, |
Place of Publication |
Morgantown |
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Prediction and amelioration of acid mine drainage; GeoRef; English |
Approved |
no |
| Call Number |
CBU @ c.wolke @ 6723 |
Serial |
360 |
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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 |
| Year |
1993 |
Publication |
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Pages |
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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 |
Approved |
no |
| Call Number |
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 |
| Year |
1993 |
Publication |
Proceedings of the Annual National Meeting – American Society for Surface Mining and Reclamation, vol.10 |
Abbreviated Journal |
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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 |
Approved |
no |
| Call Number |
CBU @ c.wolke @ 16744 |
Serial |
366 |
| Permanent link to this record |
