| Records |
| Author |
Benner, S.G. |
| Title |
Geochemistry of a permeable reactive barrier for metals and acid mine drainage |
Type |
Journal Article |
| Year |
1999 |
Publication |
Environmental Science & Technology |
Abbreviated Journal |
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| Volume |
33 |
Issue |
16 |
Pages |
2793-2799 |
| Keywords |
mine water treatment |
| Abstract |
A permeable reactive barrier, designed to remove metals and generate alkalinity by promoting sulfate reduction and metal sulfide precipitation, was installed in August 1995 into an aquifer containing effluent from mine tailings. Passage of groundwater through the barrier results in striking improvement in water quality. Dramatic changes in concentrations of SO4 (decrease of 2000-3000 mg/L), Fe (decrease of 270-1300 mg/L), trace metals (e.g., Ni decreases 30 mg/L), and alkalinity (increase of (800-2700 mg/L) are observed. Populations of sulfate reducing bacteria are 10 000 times greater, and bacterial activity, as measured by dehydrogenase activity, is 10 rimes higher within the barrier compared to the up-gradient aquifer. Dissolved sulfide concentrations increase by 0.2-120 mg/ L, and the isotope S-34 is enriched relative to S-32 in the dissolved phase SO42- within the barrier. Water chemistry, coupled with geochemical speciation modeling, indicates the pore water in the barrier becomes supersaturated with respect to amorphous Fe sulfide. Solid phase analysis of the reactive mixture indicates the accumulation of Fe monosulfide precipitates. Shifts in the saturation states of carbonate, sulfate, and sulfide minerals and most of the observed changes in water chemistry in the barrier and down-gradient aquifer can be attributed, either directly or indirectly, to bacterially mediated sulfate reduction. |
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Geochemistry of a permeable reactive barrier for metals and acid mine drainage; Wos:000082074500017; Times Cited: 57; ISI Web of Science |
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no |
| Call Number |
CBU @ c.wolke @ 17115 |
Serial |
132 |
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| Author |
Brown, A. |
| Title |
Geohydrology and adit plugging |
Type |
Book Chapter |
| Year |
1995 |
Publication |
Special Publication – Colorado Geological Survey, Report: 38 |
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Pages |
87-98 |
| Keywords |
acid mine drainage; Colorado; construction; discharge; geochemistry; ground water; hydrochemistry; hydrology; lithofacies; metals; methods; mines; monitoring; pH; pollutants; pollution; remediation; Rio Grande County Colorado; stream transport; Summitville Mine; tunnels; underground installations; United States; water table 22 Environmental geology; 21 Hydrogeology |
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Posey, H.H.; Pendleton, J.A.; Van Zyl, D.J.A. |
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Proceedings; Summitville forum '95 |
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188421651x |
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Geohydrology and adit plugging; GeoRef; English; 1995-052685; Summitville forum '95, Fort Collins, CO, United States, Jan. 17-20, 1995 References: 6; illus. incl. 3 tables, geol. sketch map |
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CBU @ c.wolke @ 6467 |
Serial |
434 |
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| Author |
Anonymous |
| Title |
Gewässerschutz im Tagebau – sauberes Wasser in den Bach |
Type |
Journal Article |
| Year |
1994 |
Publication |
Steinbruch und Sandgrube |
Abbreviated Journal |
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| Volume |
87 |
Issue |
4 |
Pages |
32-33 |
| Keywords |
Tagebau Ton=Mineral Grubenentwässerung Abwasserbehandlung Absetzbecken |
| Abstract |
In Tontagebauen sammelt man die durch Tonteilchen verunreinigten Niederschlagsmengen am tiefsten Punkt des Tagebaus und pumpt sie zur Reinigung ab, bevor sie dem normalen Wasserkreislauf wieder zugeführt werden. Die sedimentative Reinigung geschieht durch Tagebausumpf, Beruhigungsbecken und Absetzbecken mit Gegenstromprinzip. Im Tagebau Ludwig Hirsch der Firma Fuchs treten saubere, klare Niederschlagswässer oberflächennah am Tagebaurand aus. Sie werden zwischenzeitlich in Betonschächten gefaßt und über den nahen Vorfluter einem Gewässer dritter Ordnung zugeleitet. Damit werden die Erosion der Tagebauböschung verhindert, der Zentralsumpf entlastet und die Verschleißkosten an Pumpen reduziert. Die Pumpenschächte des Klarwassers werden in die Rückverfüllung eingebunden und so ausgebaut, daß langfristig ein störungsfreies Zufließen gewährleistet ist. Zum Schluß der Rekultivierung werden sie verfüllt. |
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0039-1018 |
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Gewässerschutz im Tagebau – sauberes Wasser in den Bach; 6142, BERG , 01.01.94; Words: 278; M9406 6245 586; 2 Seiten, 5 Bilder 3MZ *Bergbau, Tunnelbau, Erdöl /Erdgasförderung, Bohrtechnik* 3UXX *Belastung von Wasser, Wasserreinhaltung, Abwasser*; BERG, Copyright FIZ Technik e.V.; DE Deutsch |
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no |
| Call Number |
CBU @ c.wolke @ 17611 |
Serial |
483 |
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| Author |
Novák, J. |
| Title |
Groundwater Remediation in the Stráz Leaching Operation |
Type |
Journal Article |
| Year |
2001 |
Publication |
Mine Water Env. |
Abbreviated Journal |
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| Volume |
20 |
Issue |
4 |
Pages |
158-167 |
| Keywords |
Contamination Czech Republic groundwater in situ leaching remediation |
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An area of the Czech Republic in the northeastern part of the Ceská Lípa district has been affected by “in situ” chemical mining of uranium. The risks associated with the contaminants have been assessed and a complex groundwater remediation project has been generated. The remediation alternatives for both the Cenomanian and Turonian aquifers are presented, relative to time requirements, economics, ecological considerations and the elimination of unacceptable risks for the population and environment. Finally, the present progress of remediation and a concept of what is necessary to complete remediation are presented. |
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1025-9112 |
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Groundwater Remediation in the Stráz Leaching Operation; 1; FG 10 Abb., 1 Tab.; AMD ISI | Wolkersdorfer |
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no |
| Call Number |
CBU @ c.wolke @ 17403 |
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281 |
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Skousen, J.G.; Rose, A.; Geidel, G.; Foreman, J.; Evans, R.; Hellier, W. |
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Book Whole |
| Year |
1998 |
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130 pp |
| Keywords |
acid mine drainage mine water remediation |
| Abstract |
An array of techniques have been developed during the last several decades to abate or control pollution by acid mine drainage (AMD) from coal and metal mines. Although most of these techniques are successful in eliminating or decreasing the deleterious effects of AMD in some situations, they are unsuccessful in others. Due to the inherent variability between mines and environmental conditions, no one abatement or treatment technique is effective on all sites, and selection of the best method on each site is difficult given the array of methods available. The techniques also vary in the type and size of problem they are capable of handling. Their individual costs, effectiveness, and maintenance are also important considerations. Therefore, accurate information is needed to understand the limitations of the various methods and their response to various site variables. Continued research is imperative for field testing of existing technologies, as well as continued development of new technologies. At present, there is no authoritative guide or manual to assist in evaluating the best technique for a given situation. In order to continue to mine coal and other minerals without harming the environment, the best science and techniques must be identified and implemented in order to minimize the production of AMD. To accomplish this goal, the Acid Mine Drainage Technology Initiative (ADTI) was organized to promote communication among scientists and engineers dealing with AMD, and to develop a consensus on the identification and optimum usage of each method. The intent is to provide information on selection of appropriate techniques for specific problems that will ultimately lead to a higher level of success in avoidance of AMD and remediation of existing sources, at a savings in cost and staff time, and with greater assurance that a planned technique will accomplish its objective. This effort will result in enhancement of mine drainage quality, improvement in stream cleanup and its cost effectiveness, and development of a mechanism for technology transfer. |
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The National Mine Land Reclamation Center |
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Morgantown |
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Handbook of Technologies for Avoidance and Remediation of Acid Mine Drainage |
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Handbook of Technologies for Avoidance and Remediation of Acid Mine Drainage; 2; VORHANDEN | AMD ISI | Wolkersdorfer; FG als Datei vorhanden 3 Abb. |
Approved |
no |
| Call Number |
CBU @ c.wolke @ 17424 |
Serial |
243 |
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