| Records |
| Author |
Wingenfelder, U.; Hansen, C.; Furrer, G.; Schulin, R. |
| Title |
Removal of heavy metals from mine waters by natural zeolites |
Type |
Journal Article |
| Year |
2005 |
Publication  |
Environ Sci Technol, ES & T |
Abbreviated Journal |
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| Volume |
39 |
Issue |
12 |
Pages |
4606-4613 |
| Keywords |
Groundwater problems and environmental effects Pollution and waste management non radioactive remediation heavy metal mine drainage acid mine drainage; acidification; Central Europe; chemical composition; chemical fractionation; dissolved materials; Europe; framework silicates; geochemistry; grain size; heavy metals; hydrochemistry; ion exchange; lead; metals; mines; mining; mobilization; models; pH; pollutants; pollution; precipitation; remediation; samples; silicates; spectra; Switzerland; toxic materials; X-ray diffraction data; X-ray fluorescence spectra; zeolite group |
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| Address |
G. Furrer, Institute of Terrestrial Ecology, Swiss Federal Institute of Technology, Zurich, Grabenstrasse 3, CH-8952 Schlieren, Switzerland gerhard.furrer@env.ethz.ch |
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| ISSN |
0013-936x |
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| Notes |
Removal of heavy metals from mine waters by natural zeolites; 2006-086777; References: 42; illus. incl. 3 tables United States (USA); GeoRef; English |
Approved |
no |
| Call Number |
CBU @ c.wolke @ 5382 |
Serial |
71 |
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| Author |
Conca, J.L.; Wright, J. |
| Title |
An Apatite II permeable reactive barrier to remediate groundwater containing Zn, Pb and Cd |
Type |
Journal Article |
| Year |
2006 |
Publication |
Appl. Geochem. |
Abbreviated Journal |
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| Volume |
21 |
Issue |
12 |
Pages |
2188-2200 |
| Keywords |
Pollution and waste management non radioactive Groundwater quality apatite groundwater remediation zinc lead cadmium acid mine drainage copper sulfate nitrate permeability water treatment precipitation chemistry |
| Abstract |
Phosphate-induced metal stabilization involving the reactive medium Apatite II(TM) [Ca10-xNax(PO4)6-x(CO3)x(OH)2], where x < 1, was used in a subsurface permeable reactive barrier (PRB) to treat acid mine drainage in a shallow alluvial groundwater containing elevated concentrations of Zn, Pb, Cd, Cu, SO4 and NO3. The groundwater is treated in situ before it enters the East Fork of Ninemile Creek, a tributary to the Coeur d'Alene River, Idaho. Microbially mediated SO4 reduction and the subsequent precipitation of sphalerite [ZnS] is the primary mechanism occurring for immobilization of Zn and Cd. Precipitation of pyromorphite [Pb10(PO4)6(OH,Cl)2] is the most likely mechanism for immobilization of Pb. Precipitation is occurring directly on the original Apatite II. The emplaced PRB has been operating successfully since January of 2001, and has reduced the concentrations of Cd and Pb to below detection (2 μg L-1), has reduced Zn to near background in this region (about 100 μg L-1), and has reduced SO4 by between 100 and 200 mg L-1 and NO3 to below detection (50 μg L-1). The PRB, filled with 90 tonnes of Apatite II, has removed about 4550 kg of Zn, 91 kg of Pb and 45 kg of Cd, but 90% of the immobilization is occurring in the first 20% of the barrier, wherein the reactive media now contain up to 25 wt% Zn. Field observations indicate that about 30% of the Apatite II material is spent (consumed). |
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0883-2927 |
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Dec.; An Apatite II permeable reactive barrier to remediate groundwater containing Zn, Pb and Cd; Science Direct |
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| Call Number |
CBU @ c.wolke @ 17248 |
Serial |
44 |
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| Author |
Stoica, L.; Dima, G. |
| Title |
Pb(II) removal from aqueous systems by biosorption-flotation on mycelial residues of Penicillium chrysogenum |
Type |
Book Chapter |
| Year |
2000 |
Publication |
7th international Mine Water Association congress; Mine water and the environment |
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Issue |
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Pages |
472-481 |
| Keywords |
bioremediation; flotation; ground water; lead; metals; Penicillium; Penicillium chrysogenum; pollution; remediation; sorption; water treatment 22, Environmental geology |
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Uniwersytet Slaski |
Place of Publication |
Sosnowiec |
Editor |
Rozkowski, A. |
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8387431230 |
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Pb(II) removal from aqueous systems by biosorption-flotation on mycelial residues of Penicillium chrysogenum; GeoRef; English; 2002-018169; 7th international Mine Water Association congress; Mine water and the environment, Katowice-Ustron, Poland, Sept. 11-15, 2000 References: 6; illus. incl. 4 tables |
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no |
| Call Number |
CBU @ c.wolke @ 5852 |
Serial |
228 |
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| Author |
Schwartz, M.O.; Ploethner, D. |
| Title |
From mine water to drinking water; heavy-metal removal by carbonate precipitation in the Grootfontein-Omatako Canal, Namibia |
Type |
Book Chapter |
| Year |
1999 |
Publication |
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Issue |
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Pages |
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Africa; aluminum; cadmium; canals; carbonates; copper; drinking water; geochemistry; Grootfontein-Omatako Canal; heavy metals; hydrochemistry; iron; lead; manganese; metallogenic provinces; metals; mine drainage; mineral deposits, genesis; mines; Namibia; policy; precipitation; purification; Southern Africa; transport; water management; water treatment 22, Environmental geology |
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Bundesanst. fuer Geowiss. und Rohstoffe |
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Hanover |
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From mine water to drinking water; heavy-metal removal by carbonate precipitation in the Grootfontein-Omatako Canal, Namibia; GeoRef; English; 2002-033925; International congress on Mine, water and environment, Seville, Spain, Sept. 13, 1999 References: 7; 2 tables, sketch maps |
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| Call Number |
CBU @ c.wolke @ 5929 |
Serial |
250 |
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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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Issue |
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Pages |
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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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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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