Results 211 to 220 of about 6,605 (261)
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Acid mine-drainage toxicity testing
Environmental Geochemistry and Health, 1997The BOD inhibition test, the activated sludge respiration inhibition test, and the Microtox® Bioassay procedure were examined for their potential as rapid toxicity screening methods for acid mine drainage (AMD) and for setting toxicity threshold levels in receiving waters.
N.F. Gray, C. O'Neill
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Remediation of acid mine drainage
Environmental Chemistry Letters, 2019Acid mine drainage induced by the mining industry causes environmental and economic issues. Acid mine drainage contains mainly metals such as Fe, Al, Cu, Ca, Mg, Mn and Zn. Preventing the formation of acid mine drainage has not been found feasible. As a consequence, remediation treatments have been developed during the last years to remove metals and ...
Mónica Rodríguez-Galán +5 more
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Pre-Mine Prediction of Acid Mine Drainage
1988The uncontrolled release of acid mine drainage (AMD) is perhaps the most serious impact mining can have on the environment. The cumulative length of streams worldwide affected by acid mine drainage is not known, but over 7000 km of streams in the eastern United States are seriously affected by acid drainage from coal mines (Kim et al. 1982).
K. D. Ferguson, P. M. Erickson
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Acid Mine (or Acid Rock) Drainage
2008After performing this experiment, the student shall be able to: Understand key interactions between metal sulfides and their natural surroundings. Mimic mine tailings and observe their oxidation by different species. Test the role of Fe(III) as a natural oxidizer.
Jorge G. Ibanez +4 more
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Acid mine drainage—Community perceptions
Mine Water and the Environment, 1994A case history describing a recent occurrence at the site of the abandoned Brukunga pyrite mine in which tenants of the South Australian Government's Housing Trust (which currently owns and operates the mine township as rental accommodation) expressed concerns about risks to their health arising from the operations of a plant designed to treat mine ...
Don Armstrong, Michael Fanning
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Acidic Mine Drainage: The Rate-Determining Step
Science, 1970The rate-determining step in the oxidation of iron pyrite and the formation of acidity in streams associated with coal and copper mines is the oxidation of ferrous iron. Effective pollution abatement necessitates controlling this reaction.
P C, Singer, W, Stumm
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Acid mine drainage remediation options: a review
Science of The Total Environment, 2005Acid 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
D Barrie, Johnson, Kevin B, Hallberg
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Flotation in Acid Mine Drainage Control: Beneficiation of Concentrate
Canadian Metallurgical Quarterly, 1997This paper is focused on recovering residual sulfide minerals by flotation from the tailing of the Pyhäsalmi Cu-Zn mine in Finland. The tailing contains 4–8% sulfide sulfur and according to the static test it is strongly acid producing, having a low ratio of neutralization potential to acid production potential (NP/AP < 1).
Leppinen, Jaakko +2 more
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Current Approaches for Mitigating Acid Mine Drainage
2013AMD is one of the critical environmental problems that causes acidification and metal contamination of surface and ground water bodies when mine materials and/or over burden-containing metal sulfides are exposed to oxidizing conditions. The best option to limit AMD is early avoidance of sulfide oxidation.
Prafulla Kumar, Sahoo +3 more
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