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Arnekleiv, J.V. |
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Title |
Downstream Effects Of Mine Drainage On Benthos And Fish In A Norwegian River – A Comparison Of The Situation Before And After River Rehabilitation |
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Journal Article |
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Year |
1995 |
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Journal of Geochemical Exploration |
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52 |
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1-2 |
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35-43 |
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mine water treatment |
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Abstract  |
Parts of the Norwegian river Gaula are strongly polluted from former mining activity in the area. In the most polluted parts of the river the concentration levels of Cu and Zn in 1986-1987 were up to 155 mug l-1 and 186 mug l-1, respectively. In 1989 the spoil heaps in the mining area were covered with protective layers of moss-covered plastic. In 1991-1992 the concentration levels of Cu and Zn had decreased by 75% and 65%, respectively. Animal life in the polluted area seemed to be strongly affected by the trace metals in 1986-1987. The 1991-1992 results showed a marked increase in the number of species and in the number of individuals of each species of Ephemeroptera and Plecoptera, compared with the results from 1986-87. Good correlations were found between the concentrations of Cu in the water and both the number of species and the number of individuals of Ephemeroptera and Plecoptera. Analysis of the species Baetis rhodani, Diura nanseni and Rhyacophila nubila showed an average total dry weight content of Cu up to 264 mug g-1, of Zn up to 1930 mug g-1 and of Cd up to 16 mug g-1. The contents of the three trace metals were significantly different from one species to another and in part between the stations for each species. In 1987 trout died after an exposure of one to two days on three test sites in the river, whereas in 1991-1992 40-75% of the trout survived an exposure period of several weeks at two of the sites. Electrofishing in 1991-1992 indicated recolonization of trout in the lower parts of the former affected and uninhabitable area. |
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Downstream Effects Of Mine Drainage On Benthos And Fish In A Norwegian River – A Comparison Of The Situation Before And After River Rehabilitation; Wos:A1995qp96600005; Times Cited: 2; ISI Web of Science |
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CBU @ c.wolke @ 17175 |
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88 |
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Berthelot, D.; Haggis, M.; Payne, R.; McClarty, D.; Courtain, M. |
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Title |
Application of water covers, remote monitoring and data management systems to environmental management at uranium tailings sites in the Serpent River Watershed |
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Journal Article |
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1999 |
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CIM Bull. |
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92 |
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1033 |
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70-77 |
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Keywords |
mine water treatment Bergbau Industrieabfall Abwasserbehandlung Umweltschutz Umwelttechnik Umweltüberwachung Umweltverschmutzung Versatzgut Uranbergbau Managementsystem Aufbereitungsrückstand |
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Abstract |
Over forty years of uranium mining in the Elliot lake region of Ontario (1956-1996) has resulted in the production of over 300 million pounds of uranium. With the completion of mining activity Rio Algom limited and Denison Mines limited are utilizing progressive environmental technologies and management systems to reduce and manage the environmental risks associated with the 150 million tonnes of potentially acid-generating tailings in nine regional waste management areas. Water covers designed to reduce oxygen entry and, thereby, significantly inhibit acid generation, have been applied at six of the sites with the Quirke site serving as a demonstration site for the Mine Environmental Neutral Drainage program, All five of Rio Algom limited's effluent treatment plants are monitored and controlled from a central control station utilizing a Supervisory Control and Data Acquisition (SCADA) system based on “Fix Dmacs” technology Scheduling, auditing and reporting of plant operating and environmental monitoring programs for the entire watershed are controlled utilizing the Regional Environmental Information Management System (REIMS). Proper application of these technologies and management systems facilitates delivery of cost-effective environmental monitoring, care and maintenance programs at these sites and provides tools to demonstrate compliance with all environmental performance criteria. |
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Sept.; Application of water covers, remote monitoring and data management systems to environmental management at uranium tailings sites in the Serpent River Watershed; Wos:000083074000018; Times Cited: 0; ISI Web of Science |
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CBU @ c.wolke @ 8475 |
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131 |
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Campbell, A. |
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Mitigation of acid rock drainage at the Summitville Mine Superfund Site, Colorado, USA |
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Journal Article |
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2000 |
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ICARD 2000, Vols I and II, Proceedings |
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1243-1250 |
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mine water treatment |
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Numerous techniques for treating, controlling, and preventing acid rock drainage have been applied at the Summitville Mine Superfund Site. Challenging aspects of the remote mine site include the wide-spread occurrence of acid-generating soils and rocks, extensive surface and underground mine workings, and a cold and wet climate. Water treatment was an immediate necessity when the Government took control of the abandoned site in December of 1992. Subsequent reclamation activities have emphasized prevention and control of ARD to minimize future water treatment requirements. A combination of conventional, innovative, and experimental methods are being applied to successfully mitigate ARD at Summitville. |
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Mitigation of acid rock drainage at the Summitville Mine Superfund Site, Colorado, USA; Isip:000169875500124; Times Cited: 0; ISI Web of Science |
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CBU @ c.wolke @ 17110 |
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165 |
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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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2005 |
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Chemie der Erde |
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65 |
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Suppl. 1 |
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65-74 |
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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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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 |
Wolkersdorfer, C. |
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Title |
Tracer tests as a mean of remediation procedures in mines |
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2006 |
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Uranium in the Environment: Mining Impact and Consequences |
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817-822 |
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mine water treatment |
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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. Consequently, the knowledge about the hydraulic behaviour of the mine water within a 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, although 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. |
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Tracer tests as a mean of remediation procedures in mines; Isip:000233396400084; Times Cited: 0; ISI Web of Science |
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CBU @ c.wolke @ 7590 |
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153 |
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