| Records |
| Author |
Greben, H.A.; Matshusa, M.P.; Maree, J.P. |
| Title |
|
Type |
Book Whole |
| Year |
2005 |
Publication |
|
Abbreviated Journal |
|
Volume  |
|
Issue |
|
Pages |
339-345 |
| Keywords |
water pollution biological Sulphate removal technology sulphate acidity metals treatment technique |
| Abstract |
Mining is implicated as a significant contributor to water pollution, the prime reason being, that pyrites oxidize to sulphuric acid when exposed to air and water. Mine effluents, often containing sulphate, acidity and metals, should be treated to render it suitable for re-use in the mining industry, for irrigation of crops or for discharge in water bodies. This study describes the removal of all three mentioned pollutants in mine effluents, from different origins, containing different concentrations of various metals. The objectives were achieved, applying the biological sulphate removal technology, using ethanol as the carbon and energy source. It was shown that diluting the mine effluent with the effluent from the biological treatment, the pH increased due to the alkalinity in the treated water while the metals precipitated with the produced sulphide. When this treatment regime was changed and the mine water was fed undiluted, it was found that the metals stimulated the methanogenic bacteria (MB) as trace elements. This resulted in a high COD utilization of the MB, such that too little COD was available for the SRB. Metal removal in all three studies was observed and in most instances the metals were eliminated to the required disposal concentration. |
| Address |
|
| Corporate Author |
|
Thesis |
|
| Publisher |
University of Oviedo |
Place of Publication |
Oviedo |
Editor |
Loredo, J.; Pendás, F. |
| Language |
|
Summary Language |
|
Original Title |
|
| Series Editor |
|
Series Title |
Mine Water 2005 – Mine Closure |
Abbreviated Series Title |
|
| Series Volume |
|
Series Issue |
|
Edition |
|
| ISSN |
|
ISBN |
84-689-3415-1 |
Medium |
|
| Area |
|
Expedition |
|
Conference |
|
| Notes |
The biological Sulphate removal technology; 1; AMD ISI | Wolkersdorfer; FG 'aha' 3 Abb., 9 Tab. |
Approved |
no |
| Call Number |
CBU @ c.wolke @ 17347 |
Serial |
367 |
| Permanent link to this record |
| |
|
| |
| Author |
Fawcett, M.N.R. |
| Title |
Management of AMD at Pine Creek Mine. Die Beherrschung des AMD-Problems in der Pine-Creek-Mine |
Type |
Conference Article |
| Year |
1995 |
Publication |
Second Australian Acid Mine Drainage Workshop, Charters Towers, AU, 28 31 March 1995 |
Abbreviated Journal |
|
| Volume |
|
Issue |
|
Pages |
83-90 |
| Keywords |
Bergbau Sanierung Erzbergbau Gold Australien Havarie Schwefelsäure Tagebau Flutung Sauerstoffzufuhr Minimierung Projektmanagement Unternehmensführung Unternehmensplanung Gewässerschutz Projektplanung Prophylaxe Acid mine drainage Haldenverkippung Tagebaurestloch |
| Abstract |
In der Regenzeit 1991/1992 wurden überraschend im Bereich des australischen Goldbergwerks Pine Creek saure Grubenwässer festgestellt, die eine ernsthafte Umweltgefährdung und einen deutlichen Anstieg bei den Betriebskosten verursachten. Diese sauren Grubenwässer traten als Folge von Laugungserscheinungen in den Halden auf. Zur Verminderung der Reaktionsfähigkeit der sulfidischen Berge wurde beschlossen, die Halden mit mehreren Schichten inerten Materials geringer Permeabilität abzudecken. Diese Abdeckung wurde anschließend verdichtet und begrünt. Bei den späteren Abbauarbeiten wurde eine prophylaktische Minimierung der begünstigenden Reaktionsbedingungen vorgenommen. Es wurde eine Integration von Abbau und Sanierungsmaßnahmen realisiert, bei der offene Tagebauflächen mit Haldenbergen verfüllt wurden. Die haldengefüllten Tagebaurestlöcher wurden außerdem teilgeflutet, um den Sauerstoffzutritt zu minimieren. Aus den gewonnenen Erfahrungen wird die Schlußfolgerung gezogen, das AMD-Problem bereits in der Planungsphase zu berücksichtigen und umfassende Untersuchungen einzuleiten. Es sind nicht erst im Stadium der Sanierung, sondern bereits bei den Abbauaktivitäten geeignete Maßnahmen einzuleiten, um unangenehme Überraschungen durch saure Grubenwässer, die übrigens sehr teuer werden können, zu vermeiden. |
| Address |
|
| Corporate Author |
|
Thesis |
|
| Publisher |
|
Place of Publication |
|
Editor |
|
| Language |
|
Summary Language |
|
Original Title |
|
| Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
| Series Volume |
|
Series Issue |
|
Edition |
|
| ISSN |
|
ISBN |
|
Medium |
|
| Area |
|
Expedition |
|
Conference |
|
| Notes |
Management of AMD at Pine Creek Mine. Die Beherrschung des AMD-Problems in der Pine-Creek-Mine; BERG, Copyright FIZ Technik e.V.; EN Englisch; 0-646-24771-9; U9609 0029 586; 11343, BERG , 07.09.96; Words: 436; 8 Seiten, 1 Bild, 4 Tabellen 3UXX *Belastung von Wasser, Wasserreinhaltung, Abwasser* 3PAB *Aufbereitung anorganischer, mineralischer Rohstoffe* 3MZ *Bergbau, Tunnelbau, Erdöl /Erdgasförderung, Bohrtechnik* |
Approved |
no |
| Call Number |
CBU @ c.wolke @ 17607 |
Serial |
383 |
| Permanent link to this record |
| |
|
| |
| Author |
Eger, P.; Melchert, G.; Antonson, D.; Wagner, J. |
| Title |
Magnesium hydroxide as a treatment for acid mine drainage in northern Minnesota |
Type |
Book Chapter |
| Year |
1993 |
Publication |
Proceedings of the Annual National Meeting – American Society for Surface Mining and Reclamation, vol.10 |
Abbreviated Journal |
|
| Volume |
|
Issue |
|
Pages |
204-217 |
| Keywords |
acid mine drainage acidification alkaline earth metals chemical properties cobalt copper drainage experimental studies hydroxides laboratory studies lime magnesium magnesium hydroxide metals Minnesota nickel northern Minnesota oxides pH pollution porous materials reagents remediation residence time trace metals United States waste disposal zinc 22, Environmental geology |
| Abstract |
Three alkaline materials were investigated for their suitability to treat acid mine drainage generated by a research facility located at a remote site in northern Minnesota. The materials investigated were hydrated lime, sodium hydroxide, and magnesium hydroxide. All three reagents were successful at raising pH and removing trace metals from the drainage, but the magnesium hydroxide had the added benefit of producing a maximum pH of approximately 9.5, while the other two reagents resulted in pH values of 12 and greater. In addition, the magnesium hydroxide was available as a high solid content slurry (58%) which simplified application and handling, and which produced the lowest volume of sludge of the materials tested. |
| Address |
|
| Corporate Author |
|
Thesis |
|
| Publisher |
|
Place of Publication |
|
Editor |
Zamora, B.A.; Connolly, R.E. |
| Language |
|
Summary Language |
|
Original Title |
|
| Series Editor |
|
Series Title |
The challenge of integrating diverse perspectives in reclamation |
Abbreviated Series Title |
|
| Series Volume |
|
Series Issue |
|
Edition |
|
| ISSN |
|
ISBN |
|
Medium |
|
| Area |
|
Expedition |
|
Conference |
|
| Notes |
Magnesium hydroxide as a treatment for acid mine drainage in northern Minnesota; GeoRef; English; 2002-028930; 10th annual national meeting of the American Society for Surface Mining and Reclamation, Spokane, WA, United States, May 16, 1993 References: 7; illus. incl. 4 tables |
Approved |
no |
| Call Number |
CBU @ c.wolke @ 16743 |
Serial |
393 |
| Permanent link to this record |
| |
|
| |
| Author |
Diz, H.R. |
| Title |
Chemical and biological treatment of acid mine drainage for the removal of heavy metals and acidity |
Type |
Book Whole |
| Year |
1997 |
Publication |
|
Abbreviated Journal |
|
| Volume |
|
Issue |
|
Pages |
|
| Keywords |
acid mine drainage; copper; effluents; ferrous iron; heavy metals; iron; manganese; metals; nickel; oxidation; pH; pollution; precipitation; rates; tailings; temperature; waste water; zinc 22, Environmental geology |
| Abstract |
|
| Address |
|
| Corporate Author |
|
Thesis |
Ph.D. thesis |
| Publisher |
Virginia Polytechnic Institute and State University, |
Place of Publication |
Blacksburg |
Editor |
|
| Language |
|
Summary Language |
|
Original Title |
|
| Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
| Series Volume |
|
Series Issue |
|
Edition |
|
| ISSN |
|
ISBN |
|
Medium |
|
| Area |
|
Expedition |
|
Conference |
|
| Notes |
Chemical and biological treatment of acid mine drainage for the removal of heavy metals and acidity; GeoRef; English |
Approved |
no |
| Call Number |
CBU @ c.wolke @ 6316 |
Serial |
400 |
| Permanent link to this record |
| |
|
| |
| Author |
Davies, G.J.; Holmes, M.; Wireman, M.; King, K.; Gertson, J.N.; Stefanic, J.M. |
| Title |
Water tracing at scales of hours to decades as an aid to estimating hydraulic characteristics of the Leadville Mine drainage tunnel |
Type |
Journal Article |
| Year |
2001 |
Publication |
|
Abbreviated Journal |
|
| Volume |
|
Issue |
|
Pages |
|
| Keywords |
acid mine drainage Arkansas River Colorado drainage dye tracers field studies fluorescence ground water Lake County Colorado Leadville Mine Leadville mining district pH quantitative analysis recharge surveys tunnels United States water treatment 30 Engineering geology 21 Hydrogeology |
| Abstract |
The Leadville Mine Drainage Tunnel (LMDT) is a 3.3 kilometer structure that was constructed in the complicated geology of the Leadville mine district in the 1940's. Discharge from the LMDT is impacted by heavy metals and is treated at a plant built in 1992 operated by the United States Bureau of Reclamation. On the surface waste rock and other remnants of the mining operations litter the landscape and this material is exposed to precipitation. As a result of contact with this material, surface water often has pH of less than 3 and its containment and disposal is necessary before it impacts surface drainage and the nearby Arkansas River. Using a borehole drilled into the mine workings the U.S. EPA has devised a plan in which the impacted water is contained on the surface which then can be discharged into the mine workings to discharge from the LMDT and be treated. The percentage of water discharging from the mining district along the drainage tunnel is unknown, and since there is no access, information about the condition of the tunnel with regards to blockages is also relatively obscure. Application of quantitative water tracing using fluorescent dyes was used to model the flow parameters at the scale of hours in the tunnel and evaluate the likelihood of blockages. Because the tunnel has intersected several lithologies and faults, other locations such as discharging shafts, adits and surface streams that could be hydraulically connected to the LMDT were also monitored. An initial tracer experiment was done using an instantaneous injection, which was followed by additional injections of water. Another tracer injection was done when there was a continuous flow of impacted water into the workings. Analysis of the tracer concentration responses at water-filled shafts and at the portal were used to model the flow along the tunnel and estimate several hydraulic parameters. Waters in these settings are mixtures of components with different residence times, so, qualitative tritium data were used to evaluate residence times of decades. The combined injected tracer and tritium data as well as other geochemical data were used to infer the nature of flow and recharge into the tunnel. |
| Address |
|
| Corporate Author |
|
Thesis |
|
| Publisher |
Abstracts with Programs - Geological Society of America |
Place of Publication |
|
Editor |
|
| Language |
|
Summary Language |
|
Original Title |
|
| Series Editor |
|
Series Title |
Geological Society of America, 2001 annual meeting |
Abbreviated Series Title |
|
| Series Volume |
|
Series Issue |
|
Edition |
|
| ISSN |
|
ISBN |
|
Medium |
|
| Area |
|
Expedition |
|
Conference |
|
| Notes |
2004-013418; Geological Society of America, 2001 annual meeting, Boston, MA, United States, Nov. 1-10, 2001; GeoRef; English |
Approved |
no |
| Call Number |
CBU @ c.wolke @ 16511 |
Serial |
408 |
| Permanent link to this record |
