| Records |
Author  |
Hedin, R.S.; Nairn, R.W.; Kleinmann, R.L.P. |
| Title |
Passive Treatment of Coal Mine Drainage |
Type |
Journal Article |
| Year |
1994 |
Publication |
Bureau of Mines Information Circular |
Abbreviated Journal |
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| Volume |
Ic-9389 |
Issue |
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Pages |
1-35 |
| Keywords |
wetland Grubenwasser treatment Wasserreinigung Wasserbehandlung mine water |
| Abstract |
Passive methods of treating mine water utilize chemical and biological processes that decrease metal concentrations and neutralize acidity. Compared to conventional chemical treatment, passive methods generally require more land area, but utilize less costly reagents and require less operational attention and maintenance. Currently, three types of passive technologies exist: aerobic wetlands, wetlands that contain an organic substrate, and anoxic limestone drains. Aerobic wetlands promote mixed oxidation and hydrolysis reactions, and are most effective when the raw mine water is net alkaline. Organic substrate wetlands promote anaerobic bacterial activity that results in the precipitation of metal sulfides and the generation of bicarbonate alkalinity. Anoxic limestone drains generate bicarbonate alkalinity and can be useful for the pretreatment of mine water before it flows into a wetland. Rates of metal and acidity removal for passive systems have been developed empirically. Aerobic wetlands remove Fe and Mn from alkaline water at rates of 10-20 g×m-2×d-1 and 0.5-1.0 g×m-2×d-1, respectively. |
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| ISSN |
0096-1914 |
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| Notes |
Passive Treatment of Coal Mine Drainage; 1; abgegeben an TUFG 100700 / € 0 13 Abb., 19 Tab.; AMD ISI | Wolkersdorfer |
Approved |
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| Call Number |
CBU @ c.wolke @ 17474 |
Serial |
355 |
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| Author |
Hedin, R.S.; Watzlaf, G.R.; Nairn, R.W. |
| Title |
Passive treatment of acid-mine drainage with limestone |
Type |
Journal Article |
| Year |
1994 |
Publication |
J. Environ. Qual. |
Abbreviated Journal |
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| Volume |
23 |
Issue |
6 |
Pages |
1338-1345 |
| Keywords |
Carbonate ALD |
| Abstract |
The water treatment performances of two anoxic limestone drains (ALDs) were evaluated. Anoxic limestone drains are buried beds of Limestone that are intended to add bicarbonate alkalinity to flow-through acid mine drainage. Both ALDs received mine water contaminated with Fe2+ (216-279 mg L(-1)) and Mn (41-51 mg L(- 1)). Flow through the Howe Bridge ALD increased alkalinity by an average 128 mg L(-1) (CaCO3 equivalent) and Ca by 52 mg L(- 1), while concentrations of Fe, K, Mg, Mn, Na, and SO42- were unchanged. The Morrison ALD increased alkalinity by an average 248 mg L(-1) and Ca by 111 mg L(-1). Concentrations of K, Mg, Mn, and SO42- all decreased by an average 17%, an effect attributed to dilution with uncontaminated water. Iron, which decreased by 30%, was partially retained within the Morrison ALD. Calcite dissolution was enhanced at both sites by high P- CO2. Untreated mine waters at the Howe Bridge and Morrison sites had average calculated P-CO2 values of 6.39 kPa (10(- 1.20) atm) and 9.24 kPa (10(-1.04) atm), respectively. At both sites, concentrations of bicarbonate alkalinity stabilized at undersaturated values (SICalcite = 10(-1.2) at Howe Bridge and 10(-0.8) at Morrison) after flowing through approximately half of the limestone beds. Flow through the second half of each ALD had little additional effect on mine water chemistry. At the current rates of calcite solubilization, 17.9 kg d(-1) CaCO3 at Howe Bridge and 2.7 kg d(-1) CaCO3 at Morrison, the ALDs have theoretical effective lifetimes in excess of 20 yr. By significantly increasing alkalinity concentrations in the mine waters; both ALDs increased metal removal in downstream constructed wetlands. |
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0047-2425 |
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| Notes |
Passive treatment of acid-mine drainage with limestone; 2; ISI:A1994PR00300029 als Datei vorhanden 3 Abb., 6 Tab.; VORHANDEN | AMD ISI | Wolkersdorfer |
Approved |
no |
| Call Number |
CBU @ c.wolke @ 17352 |
Serial |
354 |
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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 |
1992 |
Publication |
Wetlands; proceedings of the 13th annual conference; Society of Wetland Scientists |
Abbreviated Journal |
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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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Editor |
Landin, M.C. |
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| Notes |
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 |
Approved |
no |
| Call Number |
CBU @ c.wolke @ 6720 |
Serial |
289 |
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| Author |
Younger, P.L.; Banwart, S.A.; Hedin, R.S. |
| Title |
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Type |
Book Whole |
| Year |
2002 |
Publication |
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Abbreviated Journal |
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Issue |
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Pages |
464 pp |
| Keywords |
mine water hydrology |
| Abstract |
Nowhere is the conflict between economic progress and environmental quality more apparent than in the mineral extraction industries. The latter half of the 20th century saw major advances in the reclamation technologies. However, mine water pollution problems have not been addressed. In many cases, polluted mine water long outlives the life of the mining operation. As the true cost of long-term water treatment responsibilities has become apparent, interest has grown in the technologies that would decrease the production of contaminated water and make its treatment less costly. This is the first book to address the mine water issue head-on. The authors explain the complexities of mine water pollution by reviewing the hydrogeological context of its formation, and provide an up-to-date presentation of prevention and treatment technologies. The book will be a valuable reference for all professionals who encounter polluted mine water on a regular or occasional basis. Foreword; R. Fernández Rubio. Preface. 1. Mining and the Water Environment. 2. Mine Water Chemistry. 3. Mine Water Hydrology. 4. Active Treatment of Polluted Mine Waters. 5. Passive Treatment of Polluted Mine Waters |
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Kluwer |
Place of Publication |
Dordrecht |
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Mine Water – Hydrology, Pollution, Remediation |
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1-4020-0137-1 |
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Mine Water – Hydrology, Pollution, Remediation; 1; AMD ISI | Wolkersdorfer |
Approved |
no |
| Call Number |
CBU @ c.wolke @ 17449 |
Serial |
195 |
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| Author |
Younger, P.L.; Banwart, S.A.; Hedin, R.S. |
| Title |
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Type |
Book Whole |
| Year |
2002 |
Publication |
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Abbreviated Journal |
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Pages |
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| Keywords |
acid mine drainage acidification active treatment aquifer vulnerability aquifers bioremediation chemical composition critical load decision-making discharge engineering properties geomembranes ground water impact statements karst hydrology microorganisms mine dewatering mines natural attenuation pollution regulations remediation risk assessment sedimentation sludge solute transport surface water tailings tailings ponds waste management water management water pollution water quality weathering wetlands 22, Environmental geology |
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Kluwer Academic Publishers |
Place of Publication |
Dordrecht |
Editor |
Alloway, B.J.; Trevors, J.T. |
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Series Title |
Mine water; hydrology, pollution, remediation |
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ISBN |
140200138x; 1202001371 |
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| Notes |
Mine water; hydrology, pollution, remediation; 2003-030514; GeoRef; English; Includes appendix References: 516; illus. |
Approved |
no |
| Call Number |
CBU @ c.wolke @ 16504 |
Serial |
196 |
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