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Tredinnick, I. A., & Cornwell, P. J. (1995). A manager's operational perspective of AMD management at the Pajingo Gold Mine. Die Beherrschung des AMD-Problems in der Pajingo Gold Mine aus der Sicht des Managers. In Second Australian Acid Mine Drainage Workshop, Charters Towers, AU, 28 31 March 1995 (pp. 43–51).
Abstract: Nach einer Beschreibung der Bergbauaktivitäen (Tief- und Tagebau) in der australischen Goldlagerstätte Pajingo wird detailliert auf die Bemühungen zur Gewährleistung des Umweltschutzes und vor allem auf die Minimierung der Freisetzung saurer Grubenwässer eingegangen. Die bei der Lösung der Aufgabenstellung zu beachtenden Besonderheiten resultieren aus der kurzen Lebensdauer der Grube, in der die 1987 begonnene Abbautätigkeit bereits im Jahr 1996 wieder beendet wurde. Aus diesem Grund wurden bereits im Planungsstadium und während der Abbautätigkeit vorbeugende Strategien zur Minimierung des AMD-Problems verwirklicht, die ausführlich beschrieben werden. Sulfidische Berge und Aufbereitungsrückstände wurden planmäßig so aufgehaldet oder eingelagert, daß sie stets von einer Schutzschicht aus oxidischem Material umgeben waren. Durch diese Einkapselung reaktionsfähiger sulfidischer Bestandteile sowie die Abdeckung der Tailings des Aufbereitungsprozesses gelang es, die Auswirkungen der Säuregenerierung zu minimieren. Es werden die betrieblichen Erfahrungen, die technologischen Besonderheiten und die Monitoringaktivitäten beschrieben. Es werden auch Angaben zum Kostenaufwand gemacht.
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Tempel, R. N. (2000). A quantitative approach to optimize chemical treatment of acid drainage using geochemical reaction path modeling methods: Climax Mine, Colorado. ICARD 2000, Vols I and II, Proceedings, , 1053–1058.
Abstract: The Climax Mine, near Leadville, Colorado treats acid drainage in a lime neutralization chemical treatment system. Chemical treatment has been successful in reducing the concentration of metals to below surface water discharge effluent limits, but lime usage has not been optimized. A geochemical modeling approach has been developed to increase the efficiency of lime neutralization. The modeling approach incorporates two steps: (1)calibration, and (2) calculation of amount of lime needed to increase pH and remove metals. Results of our work quantify the lime treatment process and improve our ability to predict overall water quality.
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Gobla, M. J. (2002). A rapid response to cleanup – Gilt Edge Superfund Site, South Dakota. Tailings and Mine Waste '02, , 421–425.
Abstract: The Gilt Edge gold mine is an acid drainage site that has been put on an accelerated closure schedule. The mine ceased activities in 1999 when Dakota Mining Corporation declared bankruptcy forcing the State of South Dakota to immediatly assume water treatment operations. Evaluation of conceptual closure plan options and cost estimates led the State of South Dakota to a decision to seek Federal assistance. The site has quickly moved into reclamation mode for the principal contamination source, the Ruby waste-rock dump. Designs and specifications for capping the Ruby waste-rock dump were prepared while Superfund listing was pursued. In October of 2000, mobilization of the first reclamation contractor began and by December the site was added to the National Priorities List. Capping the waste-rock dump will address a major acid drainage source. Water treatment requirements are expected to decline as conventional methods such as diverting clean water, backfilling, grading, capping, limestone neutralization, and revegetation are implemented. Acid seepage from underground workings, steep highwalls, and some pit backfills will remain. Major field trials of emerging technologies are nearing completion and some are showing promising results. Carbon reduction in a pit lake, and pyrite microencapsulation on simulated waste dumps, are showing initial success. Their application may minimize or eliminate the need for long-term active water treatment which has been a long sought goal for major acid rock drainage sites.
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Gazea, B., Adam, K., & Kontopoulos, A. (1996). A review of passive systems for the treatment of acid mine drainage. Minerals Engineering, 9(1), 23–42.
Abstract: This review presents the current state of development of the passive mine water treatment technologies. The background of passive treatment is reviewed and the chemical and biological processes involved in metals removal and acidity neutralisation are detailed. The types of currently existing passive treatment technologies and their applicability range as defined by the mine water chemistry are presented. Finally, the performance of passive systems constructed for the treatment of acid mine drainage from both coal and sulphide metal mines is summarised.
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Bowell, R. J., Connelly, R. J., Ellis, J., Cowan, J., Wood, A., Barta, J., et al. (1997). A review of sulfate removal options from mine waters.
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