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Author |
Laine, D.M.; Jarvis, A.P. |
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Title |
Design aspects of passive in situ remediation schemes for minign & industrial effluents |
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Journal Article |
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2003 |
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Tübinger Geowissenschaftliche Arbeiten |
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C68 |
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95-113 |
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Keywords |
mine water passive treatment |
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0935-4948 |
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Design aspects of passive in situ remediation schemes for minign & industrial effluents; 1; FG 1 Abb., 2 Tab.; AMD ISI | Wolkersdorfer |
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CBU @ c.wolke @ 9759 |
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319 |
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Catalan, L.J.J.; Yin, G. |
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Title |
Comparison of calcite to quicklime for amending partially oxidized sulfidic mine tailings before flooding |
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Journal Article |
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Year |
2003 |
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Environ Sci Technol |
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37 |
Issue |
7 |
Pages |
1408-1413 |
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Keywords |
mine water treatment |
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Abstract |
Flooding partially oxidized mine tailings for the purpose of mitigating further oxidation of sulfide minerals and generation of acid drainage is generally preceded by treatment with alkaline amendments to prevent releasing previously accumulated acidity to the water cover. This work compares the ability of calcite (CaCO3) and quicklime (CaO), two common amendments, to establish and maintain pH conditions and dissolved metal concentrations within environmentally acceptable ranges over long time periods. Although higher initial pH values were obtained with quicklime, the pH of quicklime treated tailings decreased over time. This was attributed to the low buffering capacity of quicklime treated tailings and to the consumption of hydroxide ions by incongruent dissolution of water-insoluble iron oxyhydroxysulfate minerals. In contrast, the pH of tailings treated with calcite increased initially and then remained stable at pH approximate to 6.7. This pH behavior was due to the lower reactivity of iron oxyhydroxysulfates with calcite, the increased buffering capacity provided by bicarbonate ions, and the incomplete dissolution of calcite. Overall, calcite was found preferable to quicklime for maintaining long-term neutral pH conditions in the treated tailings. With the exception of zinc, acceptable dissolved metal concentrations were achieved with calcite treated tailings. |
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0013-936x |
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Apr. 01; Comparison of calcite to quicklime for amending partially oxidized sulfidic mine tailings before flooding; Wos:000181977000050; Times Cited: 2; file:///C:/Dokumente%20und%20Einstellungen/Stefan/Eigene%20Dateien/Artikel/7917.pdf; ISI Web of Science |
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CBU @ c.wolke @ 7917 |
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118 |
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Chua, A.S.M.; Takabatake, H.; Satoh, H.; Mino, T. |
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Title |
Production of polyhydroxyalkanoates (PHA) by activated sludge treating municipal wastewater: effect of pH, sludge retention time (SRT), and acetate concentration in influent |
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Journal Article |
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2003 |
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Water Res |
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37 |
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15 |
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3602-3611 |
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0043-1354 |
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Production of polyhydroxyalkanoates (PHA) by activated sludge treating municipal wastewater: effect of pH, sludge retention time (SRT), and acetate concentration in influent; 1647413788; UB Bayreuth <703> TU Berlin <83> UB Braunschweig <84> SUB Bremen <46> UB Cottbus <Co 1> SLUB Dresden <14> SUB Goettingen <7> SUB+Uni Hamburg <18> TUB Hamburg <830> TIB/UB Hannover <89> UB Ilmenau <Ilm 1> UB Karlsruhe <90> ULB + FH Merseburg <3/55> BSB München <12> UB Stuttgart <93> UB Hohenheim <100> UB Trier <385> Österreichische ZB Physik, Wie; OLC-SSG Technik – Online Contents-Sondersammelgebiete |
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CBU @ c.wolke @ 2160 |
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417 |
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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. |
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Title |
Treatment of mine drainage using permeable reactive materials |
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Journal Article |
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2003 |
Publication |
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 |
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182 |
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Ziemkiewicz, P.F.; Skousen, J.G.; Simmons, J. |
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Title |
Long-term Performance of Passive Acid Mine Drainage Treatment Systems |
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Journal Article |
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Year |
2003 |
Publication |
Mine Water Env. |
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Volume |
22 |
Issue |
3 |
Pages |
118-129 |
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Keywords |
acidity acid load aerobic wetlands anaerobic wetlands anoxic limestone drains limestone leach beds open limestone channels slag leach beds successive alkalinity producing systems vertical flow wetlands |
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Abstract |
State and federal reclamation programs, mining operators, and citizen-based watershed organizations have constructed hundreds of passive systems in the eastern U.S. over the past 20 years to provide reliable, low cost, low maintenance mine water treatment in remote locations. While performance has been reported for individual systems, there has not been a comprehensive evaluation of the performance of each treatment type for a wide variety of conditions. We evaluated 83 systems: five types in eight states. Each system was monitored for influent and effluent flow, pH, net acidity, and metal concentrations. Performance was normalized among types by calculating acid load reductions and removals, and by converting construction cost, projected service life, and metric tonnes of acid load treated into cost per tonne of acid treated. Of the 83 systems, 82 reduced acid load. Average acid load reductions were 9.9 t/yr for open limestone channels (OLC), 10.1 t/yr for vertical flow wetlands (VFW), 11.9 t/yr for anaerobic wetlands (AnW), 16.6 t/yr for limestone leach beds (LSB), and 22.2 t/yr for anoxic limestone drains (ALD). Average costs for acid removal varied from $83/t/yr for ALDs to $527 for AnWs. Average acid removals were 25 g/m2/day for AnWs, 62 g/m2/day for VFWs, 22 g/day/t for OLCs, 28 g/day/t for LSBs, and 56 g/day/t for ALDs. It appears that the majority of passive systems are effective but there was wide variation within each system type, so improved reliability and efficiency are needed. This report is an initial step in determining passive treatment system performance; additional work is needed to refine system designs and monitoring. |
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1025-9112 |
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Long-term Performance of Passive Acid Mine Drainage Treatment Systems; 1; FG 1 Abb., 7 Tab.; AMD ISI | Wolkersdorfer |
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Call Number |
CBU @ c.wolke @ 17454 |
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187 |
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