| Records |
| Author |
Benner, S.G. |
| Title |
Geochemistry of a permeable reactive barrier for metals and acid mine drainage |
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Journal Article |
| Year |
1999 |
Publication |
Environmental Science & Technology |
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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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CBU @ c.wolke @ 17115 |
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132 |
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Sottnik, P.; Sucha, V. |
| Title |
Moznosti upravy kysleho banskeho vytoku loziska Banska Stiavnica-Sobov. Remediation of acid mine drainage from Sobov Mine, Banska Stiavnica |
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Journal Article |
| Year |
2001 |
Publication |
Mineralia Slovaca |
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33 |
Issue |
1 |
Pages |
53-60 |
| Keywords |
acid mine drainage aluminum Banska Stiavnica Slovakia Central Europe copper Eh Europe gangue heavy metals iron manganese metals metamorphic rocks oxidation pH pollution precipitation pyrite quartzites reduction remediation Slovakia Sobov Mine sulfides vegetation waste disposal wetlands 22, Environmental geology |
| Abstract |
A waste dump formed during the exploitation of quartzite deposit in Sobov mine (Slovakia) produces large quantity of acid mine drainage (AMD) which is mainly a product of pyrite oxidation. Sulphuric acid--the most aggressive oxidation product--attacks gangue minerals, mainly clays, as well. This process lead to a sharp decrease of the pH values (2-2.5) and increase of Fe, Al and SO (super 2-) (sub 4) contents (TDS = 20-30 mg/1). Passive treatment system was designed to remediate AMD. Chemical redox reactions along with microbial activity cause a precipitation of mobile contamination into a more stable forms. The sulphides are formed in the anaerobic cell, under reducing conditions. Fe-, Al- oxyhydroxides are precipitated in the aerobic part of the system. Precipitation decreases the Fe and Al contents along with immobilization of some heavy metal closely related to oxyhydroxides. Besides oxidation, the wetland vegetation is an active part of on aerobic cell. The system has been working effectively since September 1999. The pH values of outflowing water are apparently higher (6.2-6.8) and contents of dissolved elements (Fe from 2.260 to 4.1; Al from 900 to 0.18; Mn from 51 to 23; Cu from 4.95 to 0.03 mg/l) is significantly lowers. |
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0369-2086 |
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Moznosti upravy kysleho banskeho vytoku loziska Banska Stiavnica-Sobov. Remediation of acid mine drainage from Sobov Mine, Banska Stiavnica; 2004-084366; References: 21; illus. incl. sects. Slovak Republic (SVK); GeoRef; Slovakian |
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CBU @ c.wolke @ 16534 |
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235 |
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Banks, D.; Younger, P.L.; Arnesen, R.-T.; Iversen, E.R.; Banks, S.B. |
| Title |
Mine-water chemistry: The good, the bad and the ugly |
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Journal Article |
| Year |
1997 |
Publication |
Environ. Geol. |
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32 |
Issue |
3 |
Pages |
157-174 |
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mine water treatment mine-water chemistry acid mine drainage mine-water pollution mine-water treatment county-durham drainage movements Pollution and waste management non radioactive Groundwater problems and environmental effects mine drainage contamination hydrogeochemistry mine water drainage acid mine drainage |
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Contaminative mine drainage waters have become one of the major hydrogeological and geochemical problems arising from mankind's intrusion into the geosphere. Mine drainage waters in Scandinavia and the United Kingdom are of three main types: (1) saline formation waters; (2) acidic, heavy-metal-containing, sulphate waters derived from pyrite oxidation, and (3) alkaline, hydrogen-sulphide-containing, heavy-metal-poor waters resulting from buffering reactions and/or sulphate reduction. Mine waters are not merely to be perceived as problems, they can be regarded as industrial or drinking water sources and have been used for sewage treatment, tanning and industrial metals extraction. Mine-water problems may be addressed by isolating the contaminant source, by suppressing the reactions releasing contaminants, or by active or passive water treatment. Innovative treatment techniques such as galvanic suppression, application of bactericides, neutralising or reducing agents (pulverised fly ash-based grouts, cattle manure, whey, brewers' yeast) require further research. |
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D. Banks, Norges Geologiske Undersokelse, Postboks 3006 – Lade, N-7002 Trondheim, Norway |
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0943-0105 |
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Oct.; Mine-water chemistry: The good, the bad and the ugly; 0337169; Germany 78; file:///C:/Dokumente%20und%20Einstellungen/Stefan/Eigene%20Dateien/Artikel/10620.pdf; Geobase |
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CBU @ c.wolke @ 10620 |
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18 |
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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 |
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2003 |
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Environmental Aspects of Mine Wastes |
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31 |
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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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Smit, J.P.; Pretorius, L.E. |
| Title |
The treatment of polluted mine water |
Type |
Journal Article |
| Year |
2000 |
Publication |
J. Afr. Earth Sci. |
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31 |
Issue |
1 |
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72 |
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1464-343x |
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The treatment of polluted mine water; 1574235052; UB Bayreuth <703> TU Berlin <83> UB Bochum <294> UB Frankfurt/Main <30> TU Freiberg <105> SUB Goettingen <7> TIB/UB Hannover <89> UB Karlsruhe <90> BSB München <12>; OLC-SSG Geowissenschaften – Online Contents-Sondersammelgebiete |
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CBU @ c.wolke @ 16424 |
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238 |
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