Records |
Author |
Foucher, S.; Battaglia-Brunet, F.; Ignatiadis, I.; Morin, D. |
Title |
Treatment by sulfate-reducing bacteria of Chessy acid-mine drainage and metals recovery |
Type |
Journal Article |
Year |
2001 |
Publication |
Chemical Engineering Science |
Abbreviated Journal |
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Volume |
56 |
Issue |
4 |
Pages |
1639-1645 |
Keywords |
Acid mine drainage Sulfate-reducing bacteria Sulfide precipitation Hydrogen transfer Fixed bed column reactor |
Abstract |
Acid-mine drainage can contain high concentrations of heavy metals and release of these contaminants into the environment is generally avoided by lime neutralization. However, this classical treatment is expensive and generates large amounts of residual sludge. The selective precipitation of metals using H2S produced biologically by sulfate-reducing bacteria has been proposed as an alternative process. Here, we report on experiments using real effluent from the disused Chessy-les-Mines mine-site at the laboratory pilot scale. A fixed-bed bioreactor, fed with an H2/CO2 mixture, was used in conjunction with a gas stripping column. The maximum rate of hydrogen transfer in the bioreactor was determined before inoculation. kLa was deduced from measurements of O2 using Higbie and Danckwert's models which predict a dependence on diffusivity. The dynamic method of physical absorption and desorption was used. The maximum rate of H2 transfer suggests that this step should not be a limiting factor. However, an increase in H2 flow rate was observed to induce an increase in sulfate reduction rate. For the precipitation step, the gas mixture from the bioreactor was bubbled into a stirred reactor fed with the real effluent. Cu and Zn could be selectively recovered at pH=2.8 and pH=3.5, respectively. Other impurities such as Ni and Fe could also be removed at pH=6 by sulfide precipitation. Part of the outlet stream from the bioreactor was used to regulate and maintain the pH during sulfide precipitation by feeding the outlet stream back into the bioreactor. The replacement of synthetic medium with real effluent had a positive effect on sulfate reduction rate which increased by 30-40%. This improvement in bacterial efficiency may be related to the large range of oligo-elements provided by the mine-water. The maximum sulfate reduction rate observed with the real effluent was 200 mgl-1 h-1, corresponding to a residence time of 0.9 day. A preliminary cost estimation based on a treatment rate of 5 m3 h-1 of a mine effluent containing 5 gl-1 SO42- is presented. |
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0009-2509 |
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Feb.; Treatment by sulfate-reducing bacteria of Chessy acid-mine drainage and metals recovery; file:///C:/Dokumente%20und%20Einstellungen/Stefan/Eigene%20Dateien/Artikel/10064.pdf; Science Direct |
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CBU @ c.wolke @ 10064 |
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54 |
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Author |
Tabak, H.H.; Govind, R. |
Title |
Advances in biotreatment of acid mine drainage and biorecovery of metals 19th annual international conference on Soils, sediments, and water; abstracts |
Type |
Book Chapter |
Year |
2004 |
Publication |
Soil & Sediment Contamination |
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Pages |
171-172 |
Keywords |
acid mine drainage; acid rock drainage; acidification; bacteria; biodegradation; bioreactors; bioremediation; decontamination; effluents; geomembranes; heavy metals; pollutants; pollution; remediation; sulfate reducing bacteria; sulfates; sulfides; Thiobacillus; waste water 22, Environmental geology |
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Advances in biotreatment of acid mine drainage and biorecovery of metals 19th annual international conference on Soils, sediments, and water; abstracts; GeoRef; English; 2006-064109; 19th annual international conference on Soils, sediments, and water, Amherst, MA, United States, Oct. 20-23, 2003 |
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CBU @ c.wolke @ 5471 |
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13 |
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Author |
Rees, B.; Bowell, R.; Dey, M.; Williams, K. |
Title |
Passive treatment; a walk away solution? |
Type |
Journal Article |
Year |
2001 |
Publication |
Mining Environmental Management |
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Volume |
9 |
Issue |
2 |
Pages |
7-8 |
Keywords |
acid mine drainage; acidification; alkalinity; bacteria; bioremediation; buffers; chemical reactions; cost; effluents; ferric iron; ferrous iron; filtration; ground water; hydrolysis; iron; metals; monitoring; oxidation; permeability; pH; pollution; remediation; substrates; sulfate ion; suspended materials; water management; water pollution; water quality; water treatment; wetlands 22, Environmental geology |
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0969-4218 |
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Passive treatment; a walk away solution?; 2001-050826; References: 3; illus. United Kingdom (GBR); GeoRef; English |
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CBU @ c.wolke @ 5722 |
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265 |
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Blowes, D.W.; Bain, J.G.; Smyth, D.J.; Ptacek, C.J.; Jambor, J.L.; Blowes, D.W.; Ritchie, A.I.M. |
Title |
Treatment of mine drainage using permeable reactive materials |
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Journal Article |
Year |
2003 |
Publication |
Environmental Aspects of Mine Wastes |
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31 |
Issue |
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Pages |
361-376 |
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acid mine drainage; acidification; aquatic environment; aquifer vulnerability; aquifers; bacteria; biodegradation; Canada; case studies; chemical reactions; Cochrane District Ontario; concentration; damage; degradation; disposal barriers; Eastern Canada; effluents; environmental analysis; ferric iron; Fry Canyon; ground water; iron; Kidd Creek Site; metal ores; metals; mines; models; Monticello Canyon; Ontario; pollution; preferential flow; reactive barriers; remediation; sediments; solid waste; sulfate ion; sulfates; sulfides; tailings; Timmins Ontario; United States; uranium ores; Utah; waste disposal; waste management; waste rock mine water treatment |
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0144-7815 |
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Treatment of mine drainage using permeable reactive materials; Ccc:000186842900017; Times Cited: 0; ISI Web of Science |
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CBU @ c.wolke @ 7910 |
Serial |
182 |
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Author |
Kuyucak, N.; St-Germain, P. |
Title |
Possible options for in situ treatment of acid mine drainage seepages |
Type |
Book Chapter |
Year |
1994 |
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Special Publication – United States. Bureau of Mines, Report: BUMINES-SP-06B-94 |
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311-318 |
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acid mine drainage; bacteria; base metals; biodegradation; bioremediation; carbonate rocks; experimental studies; in situ; limestone; metal ores; pollution; reduction; remediation; sedimentary rocks; seepage 22, Environmental geology |
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Proceedings of the International land reclamation and mine drainage conference and Third international conference on The abatement of acidic drainage; Volume 2 of 4; Mine drainage |
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Possible options for in situ treatment of acid mine drainage seepages; GeoRef; English; 2007-045234; International land reclamation and mine drainage conference; International conference on The abatement of acidic drainage, Pittsburgh, PA, United States, April 24-29, 1994 References: 12; illus. incl. 4 tables |
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no |
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CBU @ c.wolke @ 6614 |
Serial |
321 |
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