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Author |
Ettner, D.C. |
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2007 |
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187-191 |
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Passiv Mine Water Treatment alternative remediation technologies Kongens Mine Roros Folldal Mines Titania's tailings impoundment Storgangen Mine |
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Abstract |
Previous mining history in Norway has resulted in ongoing release of acid mine drainage. Preservation of the historical sites in mining areas does not allow for remediation technologies that result in significant alteration of the historical landscape. Therefore, alternative remediation techniques such as passive mine water treatment have been tested. The climate in Norway varies from mild coastal climates to artic climates, and one of the challenges with passive treatment systems is the cold winter conditions. Anaerobic treatment systems have been built at Kongens Mine near Røros, at Folldal mines, and at Titania's tailings impoundment near Storgangen Mine. These systems utilize sulfate-reducing bacteria that result in the precipitation of metal sulfides. A full- and pilot-scale system at Kongens Mine and Folldal were built in 2006 to remove copper and zinc from typical ARD in an alpine climate. Previous testing with pilot scale systems at Kongens Mine showed that up to 85% copper and 48% zinc could be removed. At Titania A/S the anaerobic system is designed to remove nickel from neutral waters. At this system over 90% nickel is removed when water flow is regulated at a constant flow. Testing shows that the system can function in cold winter conditions, however, optimal metal removal is achieved under warmer temperatures. Temperatures changes by global climatic warming will not adversely affect these anaerobic systems. However, extreme precipitation events and the resulting rapid fluctuations of ARD runoff will provide a challenge for the effectiveness of these systems. |
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Mako Edizioni |
Place of Publication |
Cagliari |
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Cidu, R.; Frau, F. |
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Water in Mining Environments |
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978-88-902955-0-8 |
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Passive Mine Water Treatment in Norway; 1; VORHANDEN | AMD ISI | Wolkersdorfer; als Datei vorhanden 3 Abb., 2 Tab. |
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no |
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Call Number |
CBU @ c.wolke @ 17338 |
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387 |
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Author |
Turek, M. |
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Title |
Recovery of NaCl from saline mine water in the ED-MSF system |
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Journal Article |
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Year |
2000 |
Publication |
8th World Salt Symposium, Vols 1 and 2 |
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471-475 |
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Keywords |
mine water treatment |
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Abstract |
A considerable part of water obtained by drainage of Polish coal-mines is saline which creates substantial ecological problems. The load of salt (mainly sodium chloride) amounts to 5 min t/year. Despite the utilisation of saline coalmine waters is considered to be the most adequate method of solving ecological problems caused by this kind of water in Poland there are only two installations utilising coal-mine waters and producing 100,000 t salt per year. In the case of the most concentrated waters, the so-called coal-mine brines, the method of concentrating by evaporation in twelve-stage expansion installation or vapour compression is applied, after which sodium chloride is manufactured. In the case of low salinity waters they are preconcentrated first by RO method. High energy consumption in above-mentioned methods of evaporation is a considerable restriction in the utilisation of coal-mine brines. An obstacle in the application of low energy evaporation processes, e.g. multi-stage flash, is the high concentration of calcium and sulphate ions in the coal-mine waters. |
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978-0-444-50065-6 |
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May; Recovery of NaCl from saline mine water in the ED-MSF system; Isip:000088786800075; Times Cited: 0; ISI Web of Science |
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Call Number |
CBU @ c.wolke @ 17092 |
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172 |
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Author |
Kleinmann, R.L.P. |
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Title |
Treatment of mine drainage by anoxic limestone drains and constructed wetlands |
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Journal Article |
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1998 |
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Acidic Mining Lakes |
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303-319 |
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mine water treatment |
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Treatment of mine drainage by anoxic limestone drains and constructed wetlands; Isip:000078867600016; Times Cited: 0; ISI Web of Science |
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no |
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Call Number |
CBU @ c.wolke @ 8621 |
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179 |
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Author |
Norris, R.H. |
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Title |
Effectiveness Of Mine Rehabilitation In Relation To Water-Quality |
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Journal Article |
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Year |
1987 |
Publication |
Acta Biologica Hungarica |
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38 |
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1 |
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127-139 |
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mine water treatment |
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When mining is completed the sites may be completely restored to the originalecosystem, rehabilitated for some desirable environmental characteristics, desirable alternative ecosystemscreated or just neglected. The strategy adopted will depend on the intended uses of the parts of theenvironment (including water) affected by the mining. An example of rehabilitation of a metal mine nearthe Australian Federal Capital is used to illustrate the problems that may be encountered. These include:lack of controls while mining is underway; catastrophic events, such as the collapse of a settling dam,lack of site specific understanding of pyrite oxidation processes, particularly those that are biologicallyenhanced; the need for adequate biological information on which to base decisions to meet biologicalinformation on which to base decisions to meet biological objectives. Experience has shown that biologicalcollections such studies should be stored in museums where they will be valuable for comparisons of changesover long periods. |
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Effectiveness Of Mine Rehabilitation In Relation To Water-Quality; Wos:A1987m197000012; Times Cited: 1; ISI Web of Science |
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no |
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Call Number |
CBU @ c.wolke @ 14735 |
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91 |
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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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Volume |
21 |
Issue |
8 |
Pages |
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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no |
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Call Number |
CBU @ c.wolke @ 16916 |
Serial |
107 |
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