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Author |
Kuyucak, N. |
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Title |
Conventional and new methods for treating acid mine drainage |
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Journal Article |
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Year |
1995 |
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Cami'95 – Computer Applications in the Mineral Industry |
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863-872 |
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Keywords |
mine water treatment |
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Conventional and new methods for treating acid mine drainage; Isip:A1995bg01c00099; Times Cited: 0; ISI Web of Science |
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Call Number |
CBU @ c.wolke @ 8880 |
Serial |
144 |
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Author |
Lawrence, R. |
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Title |
Technology reduces sulphur compounds – A new way of treating acid mine drainage |
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Journal Article |
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Year |
2002 |
Publication |
Canadian Mining Journal |
Abbreviated Journal |
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Volume |
123 |
Issue |
7 |
Pages |
27-27 |
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Keywords |
mine water treatment |
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Technology reduces sulphur compounds – A new way of treating acid mine drainage; Wos:000179123100016; Times Cited: 0; ISI Web of Science |
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Call Number |
CBU @ c.wolke @ 8075 |
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120 |
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Author |
Wolkersdorfer, C. |
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Title |
Mine water tracer tests as a basis for remediation strategies |
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Journal Article |
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Year |
2005 |
Publication |
Chemie der Erde |
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Volume |
65 |
Issue |
Suppl. 1 |
Pages |
65-74 |
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Keywords |
Mine water treatment Stratification Convection First flush Tracer tests Microspheres Reactive transport Groundwater problems and environmental effects Pollution and waste management non radioactive acid mine drainage remediation |
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Abstract |
Mining usually causes severe anthropogenic changes by which the ground- or surface water might be significantly polluted. One of the main problems in the mining industry are acid mine drainage, the drainage of heavy metals, and the prediction of mine water rebound after mine closure. Therefore, the knowledge about the hydraulic behaviour of the mine water within the flooded mine might significantly reduce the costs of mine closure and remediation. In the literature, the difficulties in evaluating the hydrodynamics of flooded mines are well described, but only few tracer tests in flooded mines have been published so far. Most tracer tests linked to mine water problems were related to either pollution of the aquifer or radioactive waste disposal and not the mine water itself. Applying the results of the test provides possibilities f or optimizing the outcome of the source-path-target methodology and therefore diminishes the costs of remediation strategies. Consequently, prior to planning of remediation strategies or numerical simulations, relatively cheap and reliable results for decision making can be obtained via a well conducted tracer test. < copyright > 2005 Elsevier GmbH. All rights reserved. |
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C. Wolkersdorfer, TU Bergakademie Freiberg, Lehrstuhl fur Hydrogeologie, 09596 Freiberg, Sachsen, Germany c.wolke@tu-freiberg.de |
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0009-2819 |
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Sep 19; Mine water tracer tests as a basis for remediation strategies; 2767887; Germany 34; Geobase |
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CBU @ c.wolke @ 17499 |
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34 |
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Author |
Kothe, E. |
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Title |
Molecular mechanisms in bio-geo-interaactions: From a case study to general mechanisms |
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Journal Article |
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Year |
2005 |
Publication |
Chemie Der Erde-Geochemistry |
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65 |
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7-27 |
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Keywords |
mine water treatment |
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The understanding of molecular mechanisms in the cycling of elements in general is essential to our alteration of current processes. One field where such geochemical element cycles are of major importance is the prevention and treatment of acid mine drainage waters (AMD) which are prone to occur in every anthropogenic, modified landscape where sulfidic rock material has been brought to the surface during mine operations. Microbiologically controlled production of AMD leads not only to acidification, but at the same time the dissolution of heavy metals makes them bioavailable posing a potential ecotoxicological risk. The water path then can contaminate surface and ground water resources which leads to even bigger problems in large catchment areas. The investigation of mechanisms in natural attenuation has already provided first ideas for applications of naturally occurring bioremediation schemes. Especially an improved soil microflora can enhance the natural attenuation when adapted microbes are applied to contaminated areas. Future schemes for plant extraction, control of water efflux by increasing evapotranspiration, and by subsequent land use with agricultural plants with biostabilization and phytosequestration potential will provide putative control measures. The mechanisms in parts of these processes have been evaluated and the resulting synthesis applied to derive a bioremediation plan using the former uranium mine in Eastern Thuringia as a case study. (c) 2005 Elsevier GrnbH. All rights reserved. |
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Molecular mechanisms in bio-geo-interaactions: From a case study to general mechanisms; Wos:000233975000002; Times Cited: 0; ISI Web of Science |
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no |
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Call Number |
CBU @ c.wolke @ 16965 |
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114 |
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Author |
Olaniran, A.O. |
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Title |
Biostimulation and bioaugmentation enhances aerobic biodegradation of dichloroethenes |
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Journal Article |
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Year |
2006 |
Publication |
Chemosphere |
Abbreviated Journal |
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Volume |
63 |
Issue |
4 |
Pages |
600-608 |
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Keywords |
mine water treatment |
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Abstract |
The accumulation of dichloroethenes (DCEs) as dominant products of microbial reductive dechlorination activity in soil and water represent a significant obstacle to the application of bioremediation as a remedial option for chloroethenes in many contaminated systems. In this study, the effects of biostimulation and/or bioaugmentation on the biodegradation of cis- and trans-DCE in soil and water samples collected from contaminated sites in South Africa were evaluated in order to deter-mine the possible bioremediation option for these compounds in the contaminated sites. Results from this study indicate that cis- and trans-DCE were readily degraded to varying degrees by natural microbial populations in all the soil and water samples tested, with up to 44% of cis-DCE and 41% of trans-DCE degraded in the untreated soil and water samples in two weeks. The degradation rate constants ranged significantly (P < 0.05) between 0.0938 and 0.560 wk(-1) and 0.182 and 0.401 wk(-1), for cis- and trans-DCE, respectively, for the various treatments employed. A combination of biostimulation and bioaugmentation significantly increased the biodegradation of both compounds within two weeks; 14% for cis-DCE and 18% for trans-DCE degradation, above those observed in untreated soil and water samples. These findings support the use of a combination of biostimulation and bioaugmentation for the efficient biodegradation of these compounds in contaminated soil and water. In addition, the results clearly demonstrate that while naturally occurring microorganisms are capable of aerobic biodegradation of cis- and trans-DCE, biotransformation may be affected by several factors, including isomer structure, soil type, and the amount of nutrients available in the water and soil. (c) 2005 Elsevier Ltd. All rights reserved. |
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Biostimulation and bioaugmentation enhances aerobic biodegradation of dichloroethenes; Wos:000237379500007; Times Cited: 0; ISI Web of Science |
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CBU @ c.wolke @ 16936 |
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111 |
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