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Author |
Bamforth, S.M. |
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Title |
Manganese removal from mine waters – investigating the occurrence and importance of manganese carbonates |
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Journal Article |
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Year |
2006 |
Publication  |
Appl. Geochem. |
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21 |
Issue |
8 |
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1274-1287 |
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Keywords |
mine water treatment |
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Abstract |
Manganese is a common contaminant of mine water and other waste waters. Due to its high solubility over a wide pH range, it is notoriously difficult to remove from contaminated waters. Previous systems that effectively remove Mn from mine waters have involved oxidising the soluble Mn(II) species at an elevated pH using substrates such as limestone and dolomites. However it is currently unclear what effect the substrate type has upon abiotic Mn removal compared to biotic removal by in situ micro-organisms (biofilms). In order to investigate the relationship between substrate type, Mn precipitation and the biofilm community, net-alkaline Mn-contaminated mine water was treated in reactors containing one of the pure materials: dolomite, limestone, magnesite and quartzite. Mine water chemistry and Mn removal rates were monitored over a 3-month period in continuous-flow reactors. For all substrates except quartzite, Mn was removed from the mine water during this period, and Mn minerals precipitated in all cases. In addition, the plastic from which the reactor was made played a role in Mn removal. Manganese oxyhydroxides were formed in all the reactors; however, Mn carbonates (specifically kutnahorite) were only identified in the reactors containing quartzite and on the reactor plastic. Magnesium-rich calcites were identified in the dolomite and magnesite reactors, suggesting that the Mg from the substrate minerals may have inhibited Mn carbonate formation. Biofilm community development and composition on all the substrates was also monitored over the 3-month period using denaturing gradient gel electrophoresis (DGGE). The DGGE profiles in all reactors showed no change with time and no difference between substrate types, suggesting that any microbiological effects are independent of mineral substrate. The identification of Mn carbonates in these systems has important implications for the design of Mn treatment systems in that the provision of a carbonate-rich substrate may not be necessary for successful Mn precipitation. (c) 2006 Elsevier Ltd. All rights reserved. |
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Manganese removal from mine waters – investigating the occurrence and importance of manganese carbonates; Wos:000240297600004; Times Cited: 0; ISI Web of Science |
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CBU @ c.wolke @ 16916 |
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107 |
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Agency, U.S.E.P.; Development, O. of R. and |
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Title |
Active and semi-passive lime treatment of acid mine drainage at Leviathan Mine, California |
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RPT |
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2006 |
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94 |
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National Risk Management Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency |
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Cincinnati, OH |
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Mar; Active and semi-passive lime treatment of acid mine drainage at Leviathan Mine, California; file:///C:/Dokumente%20und%20Einstellungen/Stefan/Eigene%20Dateien/Artikel/7171.pdf; Opac |
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CBU @ c.wolke @ 7171 |
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62 |
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Author |
Zinck, J. |
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2006 |
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2604-2617 |
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mine water lime treatment high density sludge process co-disposal sludge stability pond disposal backfill leaching mine reclamation |
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Sludge management is an escalating concern as the inventory of sludge continues to grow through perpetual “pump and treat” of acidic waters at mine sites. Current sludge management practices, in general, are ad hoc and frequently do not adress long-term storage, and in some cases, long-term stability. While a variety of sludge disposal practices have been applied, many have not been fully investigated and monitoring data on the performance of these technologies is limited and not readily available. This paper discusses options for treatment sludge management including conventionale disposal technologies and options for reclamation of sludge areas. |
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Proceedings, International Conference of Acid Rock Drainage (ICARD) |
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St. Louis |
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Icard 2006 |
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Disposal, reprocessing and reuse options for acidic drainage treatment sludge; 2; AMD ISI | Wolkersdorfer; 2 Abb. |
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CBU @ c.wolke @ 17455 |
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184 |
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Author |
Wolkersdorfer, C. |
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2006 |
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2490-2501 [Cd-Rom] |
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mine water flooded shaft underground mining mine water pollution |
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Acid mine drainage, the drainage of metals, and the prediction of mine water rebound after mine closure are major problems for the mining industry. In the literature, the difficulties in evaluating the hydrodynamics of flooded mines are well described, although only a few tracer tests in flooded mines have been published. Increased knowledge about the hydraulic behaviour of the mine water within a flooded mine might significantly reduce the costs of mine closure and remediation. Relatively cheap and reliable results for decision making can be obtained when tracer tests are properly conducted in a flooded mine prior to planning of remediation strategies or numerical simulations. Applying the results of successful tracer tests allows one to optimise remediation designs and thereby diminish the costs of remediation. The paper summarises the results of several tracer tests and draws general conclusions from such tests. |
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Proceedings, International Conference of Acid Rock Drainage (ICARD) |
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7 |
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Icard 2006 |
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Acid Mine Drainage Tracer Tests; 2; AMD ISI | Wolkersdorfer; 5 Abb. |
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CBU @ c.wolke @ 17446 |
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203 |
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Wolkersdorfer, C. |
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Book Whole |
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2006 |
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348 pp |
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mine water stratification prediction tracer tests HABIL |
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unpubl. Habilitation Thesis TU Bergakademie Freiberg |
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Freiberg |
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Water Management at Abandoned Flooded Underground Mines – Fundamentals – Tracer Tests – Modelling – Water Treatment |
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Water Management at Abandoned Flooded Underground Mines – Fundamentals – Tracer Tests – Modelling – Water Treatment; 1; AMD ISI | Wolkersdorfer; FG 123 Abb., 34 Tab. |
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CBU @ c.wolke @ 17445 |
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204 |
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