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Johnson, D.B.; Hallberg, K.B. |
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Title |
Pitfalls of passive mine water treatment |
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Journal Article |
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2002 |
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Reviews in Environmental Science & Biotechnology |
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1 |
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5 |
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335-343 |
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Keywords |
acid mine drainage acidophilic microorganisms heavy metals iron oxidation iron reduction remediation sulfate reduction wetlands Wheal Jane |
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Abstract |
Passive (wetland) treatment of waters draining abandoned and derelict mine sites has a number of detrac-tions. Detailed knowledge of many of the fundamental processes that dictate the performance and longevity of constructed systems is currently very limited and therefore more research effort is needed before passive treatment becomes an “off-the-shelf” technology. |
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1569-1705 |
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Dec.; Pitfalls of passive mine water treatment; 2; FG als Datei vorhanden 4 Abb., 1 Tab.; VORHANDEN | AMD ISI | Wolkersdorfer |
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CBU @ c.wolke @ 10138 |
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336 |
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Author |
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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Year |
1990 |
Publication |
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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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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Author |
Kuyucak, N. |
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Book Whole |
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1999 |
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599-606 |
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hydrogeology mining water acid mine drainage environment treatment control economy oxidation sulphide hydrochemistry |
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International Mine Water Association |
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Fernández Rubio, R. |
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Mine, Water & Environment |
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Acid Mine Drainage Prevention and Control Options; 1; AMD ISI | Wolkersdorfer; FG 'de' 6 Abb., 1 Tab. |
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CBU @ c.wolke @ 17373 |
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325 |
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Kuyucak, N. |
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Title |
Acid mine drainage; treatment options for mining effluents |
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2001 |
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Mining Environmental Management |
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9 |
Issue |
2 |
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12-15 |
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Keywords |
acid mine drainage; alkalinity; cadmium; chemical reactions; copper; cyanides; decontamination; degradation; effluents; flotation; heavy metals; lead; lime; metals; mines; nickel; oxidation; pH; physicochemical properties; pollution; reagents; reduction; remediation; seepage; sludge; solid waste; solvents; stability; tailings; toxic materials; toxicity; waste disposal; water quality; zinc |
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0969-4218 |
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Acid mine drainage; treatment options for mining effluents; 2001-050827; References: 23; illus. United Kingdom (GBR); GeoRef; English |
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CBU @ c.wolke @ 5723 |
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324 |
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