ORCID Profile
0000-0002-4039-8792
Current Organisations
University of Hannover
,
University of Tasmania
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Publisher: Schweizerbart
Date: 13-09-2013
Publisher: Elsevier BV
Date: 11-2019
Publisher: American Geophysical Union (AGU)
Date: 10-2009
DOI: 10.1029/2009GC002488
Publisher: Wiley
Date: 10-2020
Publisher: American Geophysical Union (AGU)
Date: 02-2005
DOI: 10.1029/2004GC000805
Publisher: Elsevier BV
Date: 2019
Publisher: Wiley
Date: 23-05-2005
Publisher: Elsevier BV
Date: 03-2018
Publisher: Springer Science and Business Media LLC
Date: 12-02-2010
Publisher: Elsevier BV
Date: 11-2017
Publisher: Elsevier BV
Date: 06-2017
Publisher: Elsevier BV
Date: 02-2018
Publisher: Oxford University Press (OUP)
Date: 24-03-2008
Publisher: Springer Science and Business Media LLC
Date: 16-09-2006
Publisher: Springer Science and Business Media LLC
Date: 13-03-2019
DOI: 10.1038/S41598-019-40357-4
Abstract: Most rock extraction sites, including mine sites and building construction sites, require a plan to assess, and mitigate if present, the risk of acid mine drainage (AMD). AMD is typically the major environmental concern where sulfide minerals are present in the excavated material and AMD prediction and remediation is based on internationally-accepted acid-base accounting (ABA) tests of representative field s les. This paper demonstrates that standardized ABA tests may not always be provide the correct AMD classification for commonly occurring waste rocks containing low-pyrite and -carbonate due to mineralogic assumptions inherent in their design. The application of these standard ABA tests at a copper mine site in South Australia resulted in the classification of a portion of its waste material as potentially acid forming in apparent contradiction to long term field measurements. Full definition of the sulfide and silicate minerals enabled re-evaluation of the weathering reactions occurring. The overall rate of neutralisation due to silicate dissolution was found to always exceed the rate of acid generation, in agreement with field observations. Consequently, the waste rock was redefined as non-acid forming. The methods developed represent a significant advance in AMD prediction and more strategic, cost-effective environmental planning, with potential for reclassification of wastes with similar characteristics.
Publisher: Geological Society of America
Date: 10-2013
DOI: 10.1130/G34638.1
Publisher: Springer Science and Business Media LLC
Date: 2004
Publisher: Springer Science and Business Media LLC
Date: 15-08-2006
Publisher: Elsevier BV
Date: 02-2019
Start Date: 2008
End Date: 2012
Funder: Australian Research Council
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