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Stewart, B.R. |
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Title |
The influence of fly ash additions on acid mine drainage production from coarse coal refuse |
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Year |
1996 |
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acid mine drainage; acidic composition; alkalic composition; alkalinity; ash; coal; controls; copper; diffusion; dissolved materials; experimental studies; geologic hazards; hydraulic conductivity; iron; leachate; leaching; manganese; metals; organic residues; oxidation; oxygen; pH; pollutants; pollution; sedimentary rocks; soil treatment; soils; sorption; sulfate ion; waste disposal; water quality 22, Environmental geology |
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Ph.D. thesis |
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Virginia Polytechnic Institute and State University, |
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Blacksburg |
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The influence of fly ash additions on acid mine drainage production from coarse coal refuse; GeoRef; English |
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CBU @ c.wolke @ 6351 |
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230 |
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Author |
Orava, D.A.; Swider, R.C. |
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Title |
Inhibiting acid mine drainage throughout the mine life cycle |
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Journal Article |
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Year |
1996 |
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CIM Bull. |
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89 |
Issue |
999 |
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52-56 |
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Umweltschutz Bergbau Erzaufbereitung Exploration Säure Industrieabwasser Oxidation Sulfid Kanada Wasserhaltung Aufbereitungsberge Waschberge |
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Abstract |
The technical knowledge and practical experience accumulated by industry and others in abating acid mine drainage (AMD) is being proactively applied at every phase of the mine life cycle. This paper traces the mine life cycle from exploration to post closure monitoring and maintenance, and reviews AMD abatement measures that have become an integral component of exploration and mining activities. Attention is increasingly being given to evaluating AMD potential as part of exploration work, and studies related to project feasibility and design. Mining, mineral processing and waste management options are selected taking into consideration their suitability to inhibit AMD. These inhibition measures are typically committed to in closure plans submitted at the permitting stage. Mines are operated and decommissioned, often progressively, as planned and in accordance with environmental protection policies. Es wird über das Problem der Säurebildung aus sulfidischen Aufbereitungsbergen und taubem Gestein im Verlauf des Existenzzyklus eines Bergwerkes berichtet. In Kanada werden seit etwa 10 Jahren intensive Forschungen für Vorhersage, Kontrolle und Eindämmung von Saürebildungen im Bergbau betrieben. Schwerpunkt ist dabei die sulfidische Oxidation (2FeS2 + 7O2 = 2FeSO4 + 2H2SO4) unter Einwirkung verschiedener physikalischer, geochemischer und biologischer Faktoren. Diese Reaktion führt zu einem Komplex weiterer chemischer Reaktionen unter Bildung von zusätzlicher Säure und Lösung von Metallen. Daraus ergeben sich zwei Hauptmöglichkeiten diesen Prozeß zu steuern: 1. die Sulfidoxidation verhindern, 2. den Oxidationsprozeß verlangsamen. Mit dem heutigen Wissensstand ist es möglich, das Säurebildungspotential von Aufbereitungsbergen zu bestimmen, den Prozeß der Sulfidoxidation von Mineralen unter bestimmten physikalischen, geochemischen und biologischen Bedingungen zu modellieren und die Säurebildung von Aufbereitungsbergen und sulfidischen Gesteinen einzudämmen. Im einzelnen werden Maßnahmen zur Bewertung des Säurebildungspotentials und zur Kontrolle und Reduzierung dieses Prozesses während der Existenzstadien Exploration, Durchführbarkeitsstudie und Genehmigung, Gewinnung und Stillegung eines Bergwerkes erläutert. An Beispielen wird gezeigt, daß bei rechtzeitgem Erkennen des Säurebildungspotentials in der Phase der Exploration Verfahren und Maßnahmen bezüglich Aufbereitung, Umgang mit Aufbereitungsbergen ausgewählt werden können. |
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SENES Consultants, Richmond Hill, CA; Swider Consulting Engineers, Toronto, CA |
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0317-0926 |
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Inhibiting acid mine drainage throughout the mine life cycle; 11083, BERG , 31.07.96; Words: 383; U9608 0110 586; 5 Seiten, 3 Bilder, 3 Tabellen, 16 Quellen 3UXX *Belastung von Wasser, Wasserreinhaltung, Abwasser* 3ATB *Technikfolgenabschätzung* 3MZ *Bergbau, Tunnelbau, Erdöl /Erdgasförderung, Bohrtechnik* 3AXF *Forschungsentwicklung, Forschungspolitik*; BERG, Copyright FIZ Technik e.V.; EN Englisch |
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CBU @ c.wolke @ 17610 |
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278 |
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Author |
Oleary, W. |
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Title |
Wastewater recycling and environmental constraints at a base metal mine and process facilities |
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Journal Article |
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Year |
1996 |
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Water Sci. Technol. |
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33 |
Issue |
10-11 |
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371-379 |
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Keywords |
mine water treatment |
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In temperate areas of abundant freshwater there is seldom an urgency to recycle. The statutory protection of inland waters for beneficial uses such as drinking, food processing and game fishing is requiring industries to choose recycling. A European success in this trend is a base metal mining/milling industry which, since 1977, is implementing hydraulic, hydrological, treatment and ecological studies with wastewaters and mine tailings. A model activity, located 50 km from Dublin is considered. Zinc and lead concentrates produced and exported to smelters ultimately yield approximately 194,000 t and 54,000 t of these respective metals (32 and 21 percent of European production). Water use as originally planned would have been approximately 6m(3)/t of ore milled. While ore milling increased by 25 percent to 8,500t/d in 1993, water use declined by 33 percent to 4m(3)/t. The components making up this reduction range from milling technology efficiency to greater recycling from the 165 ha tailings pond. Environmental standards, based on framework regulations originating in EU Directives, have been instrumental in achieving wastewater savings. A conclusion is the value of integrating water quantity, quality, recycling, storage, production and other factors early in project planning. Copyright (C) 1996 IAWQ. Published by Elsevier Science Ltd. |
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Wastewater recycling and environmental constraints at a base metal mine and process facilities; Wos:A1996vb13300041; Times Cited: 1; ISI Web of Science |
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CBU @ c.wolke @ 17170 |
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84 |
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Author |
Meek, F.A., Jr.; Skousen, J.G.; Ziemkiewicz, P.F. |
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Title |
Evaluation of acid prevention techniques used in surface mining |
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Book Chapter |
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Year |
1996 |
Publication |
Acid mine drainage control and treatment |
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acidic composition; acidification; Allegheny Mountains; Appalachians; central West Virginia; coal mines; controls; environmental analysis; environmental management; ground water; lime; mines; North America; phosphates; pollution; preventive measures; reclamation; remediation; spoils; surface water; United States; Upshur County West Virginia; water quality; water treatment; West Virginia 22, Environmental geology |
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West Virginia University and the National Mine Land Reclamation Center |
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Morgantown |
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Evaluation of acid prevention techniques used in surface mining; GeoRef; English; 2004-051150; Edition: 2 References: 5; illus. incl. 2 tables |
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CBU @ c.wolke @ 6360 |
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301 |
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Author |
Matsuoka, I. |
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Title |
Mine drainage treatment |
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Journal Article |
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Year |
1996 |
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Shigen to Sozai = Journal of the Mining and Materials Processing Institute of Japan |
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112 |
Issue |
5 |
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273-281 |
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acid mine drainage; Asia; Far East; Japan; mine dewatering; mine drainage; mines; pollution; water treatment 22, Environmental geology |
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0916-1740 |
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Mine drainage treatment; 1997-062437; References: 66; illus. incl. 9 tables Japan (JPN); GeoRef; Japanese |
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CBU @ c.wolke @ 6342 |
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305 |
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