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Author |
Wolkersdorfer, C. |
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Title |
Mine water tracing |
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Journal Article |
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Year |
2002 |
Publication |
Geological Society Special Publication |
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Volume |
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198 |
Pages |
47-60 |
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Groundwater problems and environmental effects Pollution and waste management non radioactive geomechanics abstracts: excavations (77 10 10) geological abstracts: environmental geology (72 14 2) flooding seepage abandoned mine tracer groundwater flow |
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Abstract |
This paper describes how tracer tests can be used in flooded underground mines to evaluate the hydrodynamic conditions or reliability of dams. Mine water tracer tests are conducted in order to evaluate the flow paths of seepage water, connections from the surface to the mine, and to support remediation plans for abandoned and flooded underground mines. There are only a few descriptions of successful tracer tests in the literature, and experience with mine water tracing is limited. Potential tracers are restricted due to the complicated chemical composition or low pH mine waters. A new injection and sampling method ('LydiA'-technique) overcomes some of the problems in mine water tracing. A successful tracer test from the Harz Mountains in Germany with Lycopodium clavatum, microspheres and sodium chloride is described, and the results of 29 mine water tracer tests indicate mean flow velocities of between 0.3 and 1.7 m min-1. |
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Address |
C. Wolkersdorfer, TU Bergakademie Freiberg, Lehrstuhl fur Hydrogeologie, Gustav-Zeuner-Strasse 12, Freiberg, Sachsen D-09599, Germany c.wolke@tu-freiberg.de |
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0305-8719 |
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Mine water tracing; 2463597; United-Kingdom 71; Geobase |
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Call Number |
CBU @ c.wolke @ 17528 |
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83 |
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Author |
Wolkersdorfer, C.; Younger, P.L. |
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Title |
Passive mine water treatment as an alternative to active systems |
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Journal Article |
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Year |
2002 |
Publication |
Grundwasser |
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Volume |
7 |
Issue |
2 |
Pages |
67-77 |
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Keywords |
Groundwater quality geographical abstracts: physical geography hydrology (71 6 11) water treatment groundwater pollution water quality mine |
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Abstract |
For the treatment of contaminated mine waters reliable treatment methods with low investment and operational costs are essential. Therefore, passive treatment systems recently have been installed in Great Britain and in Germany (e.g. anoxic limestone drains, constructed wetlands, reactive barriers, roughing filters) and during the last eight years such systems successfully treated mine waters, using up to 6 ha of space. In some cases with highly contaminated mine water, a combination of active and passive systems should be applied, as in any case the water quality has to reach the limits. Because not all the processes of passive treatment systems are understood in detail, current research projects (e.g. EU-project PIRAMID) were established to clarify open questions. |
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Dr. Ch. Wolkersdorfer, TU Bergakademie Freiberg, Lehrstuhl fur Hydrogeologie, Gustav-Zeuner-Str. 12, Freiberg/Saichen 09596, Germany c.wolke@tu-freiberg.de |
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1430-483x |
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Passive mine water treatment as an alternative to active systems; 2428851; Passive Grubenwasserreinigung als Alternative zu aktiven Systemen. Germany 51; Geobase |
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CBU @ c.wolke @ 17530 |
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202 |
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Author |
Chalaturnyk, R.J.; Scott, J.D.; Ozum, B. |
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Title |
Management of Oil Sands Tailings |
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Journal Article |
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Year |
2002 |
Publication |
Pet. Sci. Technol. |
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20 |
Issue |
9-10 |
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1025-1046 |
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Keywords |
mine water |
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Abstract |
In Alberta, oil sands bitumen is utilized for synthetic crude oil (SCO) production by surface mining, bitumen extraction followed by primary (coking) and secondary (catalytic hydro-treating) upgrading processes. SCO is further refined in specially designed or slightly modified conventional refineries into transportation fuels. Oil sands tailings, composed of water, sands, silt, clay and residual bitumen, is produced as a byproduct of the bitumen extraction process. The tailings have poor consolidation and Water release characteristics. For twenty years, significant research has been performed to improve the consolidation and water release characteristics of the tailings. Several processes were developed for the management of oil sands tailings, resulting in different recovered water characteristics, consolidation rates and consolidated solid characteristics. These processes may affect the performance of the overall plant operations. Apex Engineering Inc. (AEI) has been developing a process for, thesame purpose. In this process oil sands tailings are treated with Ca(OH)(2) lime and CO2 and thickened using a suitable thickener. The combination of chemical treatment and the use of a thickener results in the release of process water in short retention times without accumulation of any ions in the recovered water. This makes it possible to recycle the recovered water, probably after a chemical treatment, as warm as possible, which improves the thermal efficiency of the extraction process. The AEI Process can be applied in many different fashions for the management of different fractions of the tailings effluent, depending on the overall plant operating priorities. |
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1091-6466 |
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Management of Oil Sands Tailings; Isi:000179750000010; AMD ISI | Wolkersdorfer |
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no |
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Call Number |
CBU @ c.wolke @ 17320 |
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420 |
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Author |
Younger, P.L.; Banwart, S.A.; Hedin, R.S. |
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Book Whole |
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2002 |
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464 pp |
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mine water hydrology |
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Nowhere is the conflict between economic progress and environmental quality more apparent than in the mineral extraction industries. The latter half of the 20th century saw major advances in the reclamation technologies. However, mine water pollution problems have not been addressed. In many cases, polluted mine water long outlives the life of the mining operation. As the true cost of long-term water treatment responsibilities has become apparent, interest has grown in the technologies that would decrease the production of contaminated water and make its treatment less costly. This is the first book to address the mine water issue head-on. The authors explain the complexities of mine water pollution by reviewing the hydrogeological context of its formation, and provide an up-to-date presentation of prevention and treatment technologies. The book will be a valuable reference for all professionals who encounter polluted mine water on a regular or occasional basis. Foreword; R. Fernández Rubio. Preface. 1. Mining and the Water Environment. 2. Mine Water Chemistry. 3. Mine Water Hydrology. 4. Active Treatment of Polluted Mine Waters. 5. Passive Treatment of Polluted Mine Waters |
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Kluwer |
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Dordrecht |
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Series Title |
Mine Water – Hydrology, Pollution, Remediation |
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1-4020-0137-1 |
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Mine Water – Hydrology, Pollution, Remediation; 1; AMD ISI | Wolkersdorfer |
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Call Number |
CBU @ c.wolke @ 17449 |
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195 |
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Author |
Scholz, M. |
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Title |
Mature experimental constructed wetlands treating urban water receiving high metal loads |
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Journal Article |
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Year |
2002 |
Publication |
Biotechnology Progress |
Abbreviated Journal |
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Volume |
18 |
Issue |
6 |
Pages |
1257-1264 |
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Keywords |
mine water treatment |
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Abstract |
The aim was to assess over 2 years the treatment efficiencies of vertical-flow wetland filters containing macrophytes and granular media of different. adsorption capacities. Different concentrations of lead and copper sulfate (constant for 1 year each) were added to urban beck inflow water in order to simulate pretreated (pH adjustment assumed) mine wastewater. After 1 year of operation, the inflow concentrations for lead and copper were increased from 1.30 to 2.98 and from 0.98 to 1.93 mg/L, respectively. However, the metal mass load rates (mg/m(2)/d) were increased by a factor of approximately 4.9 for lead and 4.3 for copper. No breakthrough of metals was recorded. Lead and copper accumulated in the biomass of the litter zone and rhizomes of the macrophytes. Furthermore, microbiological activity decreased during the second year of operation. Bioindicators such as ciliated protozoa and zooplankton decreased sharply in numbers but diatoms increased. In conclusion, the use of macrophytes and, adsorption media did not significantly enhance the filtration of lead and copper. Particulate lead is removed by filtration processes including straining. Furthermore, some expensive and time-consuming water quality variables can be predicted with less expensive ones such as temperature in order to reduce sampling costs. |
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Mature experimental constructed wetlands treating urban water receiving high metal loads; Wos:000179760000018; Times Cited: 11; ISI Web of Science |
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Call Number |
CBU @ c.wolke @ 17032 |
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119 |
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