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Holtzhausen, L. |
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Title |
Minewater treatment technology revved up |
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Journal Article |
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Year |
2005 |
Publication |
Water Sewage and Effluent |
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25 |
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2 |
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24-26 |
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Geobase: Related Topics geobase: related topics (901) water treatment |
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0257-8700 |
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Trade- Note; Minewater treatment technology revved up; 2710582; South-Africa; Geobase |
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CBU @ c.wolke @ 10344 |
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348 |
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Houston, K.S.; Milionis, P.N.; Eppley, R.L.; Harrington, J.M.; Harrington, J.G. |
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Title |
Field Demonstration of In-Situ Treatment and Prevention of Acid Mine Drainage in the Abandoned Tide Mine, Indiana County, Pennsylvania |
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Journal Article |
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2005 |
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in situ ferrous sulfide precipitation sulfate reduction coal bromide tracer Tide Mine Center Township PA tracer study |
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A field demonstration of the Green World Science® patented process technology was performed to address acid mine drainage (AMD) at an abandoned bituminous coal mine, the Tide Mine in Center Township, Indiana County, PA. ARCADIS owns an exclusive patent license of the Green World Science® process, which can be used in situ to transform an aerobic, AMD-producing mine pool to a biologically mediated, sulfate-reducing state. The Green World Science® process treats the entire mine pool to address the source of AMD in place. The project was conducted through a grant agreement between the Blacklick Creek Watershed Association, the Pennsylvania Department of Environmental Protection's Bureau of Abandoned Mine Reclamation, and ARCADIS. In conjunction with the characterization of mine pool hydraulics through injection of a bromide tracer, the in situ treatments implemented at Tide Mine include the initial addition of alkalinity to create an environment suitable for biological activity, injection of organic carbon into the mine pool to facilitate microbially mediated metals reduction and precipitation, and injection of carbon dioxide gas into the atmosphere above the mine pool to control the dominant source of oxygen that perpetuates the AMD process. Collectively, these treatments raised the pH from a baseline of approximately 2.5 to over 6 during the demonstration period. The mine pool subsequently maintains a pH above 5 through microbially produced (i.e., bicarbonate) alkalinity. Ferric iron has been reduced to non-detect concentrations within the anaerobic mine pool, and aluminum concentrations have decreased by approximately 30%, with additional metals removal expected as the system becomes controlled by ferrous sulfide precipitation. The injection of carbon dioxide gas into the mine workings decreased oxygen concentrations above the mine pool from over 20% (ambient air conditions) to less than 5% over approximately three months, thus mitigating the source of AMD within the mine. |
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Proceedings, 26th West Virginia Surface Mine Drainage Task Force Symposium |
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2; als Datei vorhanden 6 Abb.; VORHANDEN | AMD ISI | Wolkersdorfer |
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CBU @ c.wolke @ 17355 |
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347 |
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Jenk, U.; Zimmermann, U.; Ziegenbalg, G. |
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Book Whole |
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2005 |
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721-727 |
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Königstein Wismut GmbH uranium treatment mine water |
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The former uranium ISL-mine at Königstein (Germany) is presently being flooded. To support the flooding process, a new technology to reduce contaminant potential in the source was developed and applied. The application based on the injection of supersaturated BaSO4-solutions to precipitate solved contaminants and to cover reactive mineral surfaces. Since 2002 the technology is applied in the southern part of the mine in order to immobilize contaminants in highly polluted areas before flooding. The article describes the fundamentals of the technology and the full-scale application. |
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Springer |
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Heidelberg |
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Merkel Broder, J.; Hasche-Berger, A. |
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Uranium in the Environment |
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3-540-28363-3 |
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The use of BaSO4 supersaturated solutions for in-situ immobilization of heavy metals in the abandoned Wismut GmbH uranium mine at Königstein; 1; AMD ISI | Wolkersdorfer; 5 Abb. |
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CBU @ c.wolke @ 17361 |
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337 |
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Johnson, D.B.; Hallberg, K.B. |
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Title |
Acid mine drainage remediation options: a review |
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Journal Article |
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2005 |
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Science of the Total Environment |
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338 |
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1-2 |
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3-14 |
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Wetlands and estuaries Pollution and waste management non radioactive geographical abstracts: physical geography hydrology (71 6 8) geological abstracts: environmental geology (72 14 2) biological method pollutant removal water treatment wastewater bioremediation constructed wetland acid mine drainage Cornwall England England United Kingdom Western Europe Europe Eurasia Eastern Hemisphere World Acid mine drainage Bioreactors Bioremediation Sulfidogenesis Wetlands Wheal Jane |
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Acid mine drainage (AMD) causes environmental pollution that affects many countries having historic or current mining industries. Preventing the formation or the migration of AMD from its source is generally considered to be the preferable option, although this is not feasible in many locations, and in such cases, it is necessary to collect, treat, and discharge mine water. There are various options available for remediating AMD, which may be divided into those that use either chemical or biological mechanisms to neutralise AMD and remove metals from solution. Both abiotic and biological systems include those that are classed as “active” (i.e., require continuous inputs of resources to sustain the process) or “passive” (i.e., require relatively little resource input once in operation). This review describes the current abiotic and bioremediative strategies that are currently used to mitigate AMD and compares the strengths and weaknesses of each. New and emerging technologies are also described. In addition, the factors that currently influence the selection of a remediation system, and how these criteria may change in the future, are discussed. |
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0048-9697 |
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Feb. 01; Acid mine drainage remediation options: a review; file:///C:/Dokumente%20und%20Einstellungen/Stefan/Eigene%20Dateien/Artikel/10052.pdf; Science Direct |
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Call Number |
CBU @ c.wolke @ 17464 |
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47 |
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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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2005 |
Publication |
Chemie Der Erde-Geochemistry |
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65 |
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7-27 |
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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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CBU @ c.wolke @ 16965 |
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114 |
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