| Records |
| 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 |
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| 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. |
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Abstracts with Programs - Geological Society of America |
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Geological Society of America, 2001 annual meeting |
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| 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 |
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| Author |
Curi, A.C.; Granda, W.J.V.; Lima, H.M.; Sousa, W.T. |
| Title |
Zeolites and their application in the decontamination of mine waste water |
Type |
Journal Article |
| Year |
2006 |
Publication |
Informacion Tecnologica |
Abbreviated Journal |
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| Volume |
17 |
Issue |
6 |
Pages |
111-118 |
| Keywords |
adsorption decontamination effluents industrial waste ion exchange metallurgical industries metallurgy mining mining industry porosity wastewater treatment zeolites zeolites decontamination mine waste water genesis porosity adsorption ionic exchange mineral metallurgical effluents mercury pollution artisan mining activities heavy metals removal metal mining effluents mercury vapors ovens fire amalgams Manufacturing and Production |
| Abstract |
This paper describes the genesis, structure and classification of natural zeolites, including their most relevant properties such as porosity, adsorption and ionic exchange. The use of natural zeolites in the treatment of effluents containing heavy metals is reviewed based on current literature. These uses are focused on mineral-metallurgical effluents and mercury pollution related to artisan mining activities. The study shows that natural zeolites are efficient in removal of heavy metals in metal mining effluents, can be produced and improved at a low cost, and can also be used to adsorb mercury vapors from ovens used to fire amalgams. |
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0716-8756 |
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| Notes |
Zeolites and their application in the decontamination of mine waste water; 9532002; Journal Paper; SilverPlatter; Ovid Technologies |
Approved |
no |
| Call Number |
CBU @ c.wolke @ 16784 |
Serial |
409 |
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| Author |
Burnett, M.; Skousen, J.G.; Skousen, J.G.; Ziemkiewicz, P.F. |
| Title |
Injection of limestone into underground mines for AMD control |
Type |
Book Chapter |
| Year |
1996 |
Publication |
Acid mine drainage control and treatment |
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acid mine drainage; acidification; alkalinity; carbonate rocks; chemical composition; coal fields; concentration; environmental analysis; environmental management; experimental studies; geologic hazards; ground water; hazardous waste; heavy metals; hydrology; land subsidence; limestone; mines; mining; mining geology; pH; pollution; Preston County West Virginia; reclamation; runoff; sedimentary rocks; Sovern Run Mine; surface water; underground mining; United States; waste management; water quality; West Virginia 22, Environmental geology |
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West Virginia University and the National Mine Land Reclamation Center |
Place of Publication |
Morgantown |
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Injection of limestone into underground mines for AMD control; GeoRef; English; 2004-051160; Edition: 2 References: 2; illus. incl. 1 table |
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no |
| Call Number |
CBU @ c.wolke @ 6370 |
Serial |
427 |
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| Author |
Brown, M.; Barley, B.; Wood, H. |
| Title |
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Type |
Book Whole |
| Year |
2002 |
Publication |
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Issue |
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Pages |
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acid mine drainage acidic composition bioremediation case studies chemical composition chemical reactions coal mines concentration constructed wetlands discharge England Europe Great Britain ground water international cooperation ion exchange kinetics legislation mines mining open-pit mining physicochemical properties policy pollution regulations remediation Scotland sulfate ion surface mining surface water tailings techniques technology underground mining United Kingdom Wales waste disposal waste management waste rock water pollution water resources water treatment weathering Western Europe wetlands 22, Environmental geology |
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IWA Publishing |
Place of Publication |
London |
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Series Title |
Minewater treatment; technology, application and policy |
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ISBN |
1843390043 |
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| Notes |
Minewater treatment; technology, application and policy; 2006-084782; GeoRef; English; Includes appendices References: 416; illus. |
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no |
| Call Number |
CBU @ c.wolke @ 16503 |
Serial |
433 |
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| Author |
Bolzicco, J.; Carrera, J.; Ayora, C. |
| Title |
Eficiencia de la barrera permeable reactiva de Aznalcollar (Sevilla, Espana) como remedio de aguas acidas de mina. Reactive permeable disposal barrier at Aznalcollar Mine, Seville, Spain; as remediation for acid mine drainage |
Type |
Journal Article |
| Year |
2004 |
Publication |
Revista Latino-Americana de Hidrogeologia |
Abbreviated Journal |
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4 |
Issue |
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Pages |
27-34 |
| Keywords |
abandoned mines acid mine drainage Agrio River Andalusia Spain aquifers Aznalcollar Mine Cenozoic chemical composition chemical ratios copper ores dams disposal barriers drainage basins Europe geochemistry ground water Guadiamar River hydrochemistry Iberian Peninsula Iberian pyrite belt igneous rocks metal ores mineral composition mines mining Miocene Neogene permeability pH pollution reactive barriers remediation sedimentary rocks sediments Seville Spain Southern Europe Spain surface water tailings Tertiary volcanic rocks waste disposal water treatment zinc ores 22, Environmental geology |
| Abstract |
As a result of the collapse of a mine tailing dam in april 1998 about 40 km of the Agrio and Guadiamar valleys were covered with a layer of pyrite sludge. Although most of the sludge was removed, a small amount remains in the soil of the Agrio valley and the aquifer remains polluted with acid water (ph<4) and metals (10 mg/L Zn, 5 mg/L Cu and Al). A permeable reactive barrier was build across the aquifer to increase the alcalinity and retain the metals. The barrier is made up of three sections of 30 m longX1.4 m thickX5 m deep (average) containing different proportions of limestone gravel, organic compost and zero-valent iron. The residence time of the water in the barrier is about two days. Within the barrier, the pH values increase to near neutral mainly due to calcite dissolution. Metals co-precipitate as oxyhydroxides, and they are also adsorbed on the organic matter surface. Down-stream the barrier, the total pollution removal is around 60-90% for Zn and Cu, and from 50 to 90% for Al and acidity. |
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Eficiencia de la barrera permeable reactiva de Aznalcollar (Sevilla, Espana) como remedio de aguas acidas de mina. Reactive permeable disposal barrier at Aznalcollar Mine, Seville, Spain; as remediation for acid mine drainage; 2004-072864; References: 7; illus. incl. geol. sketch map Brazil (BRA); GeoRef; Spanish |
Approved |
no |
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CBU @ c.wolke @ 16471 |
Serial |
443 |
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