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REWAS 2019 pp 115-122 | Cite as

Control of Leachate Contamination from Mine Wastes Through an Appropriate Operating Practice

  • Kenneth SichoneEmail author
Conference paper
Part of the The Minerals, Metals & Materials Series book series (MMMS)

Abstract

Mine wastes pose a significant environmental risk. Natural waters in areas that have a long history of mining tend to be polluted by release of metals resulting in environmental issues such as acid mine drainage. Interventions to mitigate such risks can be part of the operating practice and need not be assigned to the post-mining era. In this study, the leachability potential of slag at a smelter slag dump of a former mine site was assessed using the modified Ontario leachate extraction procedure (MOLEP) and other regulatory leachate quality criteria. Results showed that the release of contaminants (Cu, Co, Pb, Zn, As, Fe and Cd) can be maintained within industry-regulated standard limits mainly by adopting a smelter operating practice that produces a slag composition with adequate self-neutralising capacity.

Keywords

Leachate Discard slag MOLEP Acid mine drainage (AMD) Self-neutralising 

References

  1. 1.
    Balintova M, Petrilakova A (2011) Study of pH influence on selective precipitation of heavy metals from acid mine drainageGoogle Scholar
  2. 2.
    Boardman DI, Glendinning S et al (2004) The influences of iron (III) and lead (II) contaminants on lime-stabilised clay. Géotechnique 54(7):467–486CrossRefGoogle Scholar
  3. 3.
    Koren DW, Wilson LJ et al (1997) Investigations of leach test protocols for slags. In: Finch JA, Rao SR, Huang L (eds) Processing of complex ores. Montreal, Canadian Institute of Mining, Metallurgy and, Petroleum, pp 339–354Google Scholar
  4. 4.
    Masters GM (2000) Introduction to environmental engineering and science. Prentice-Hall Inc, Englewood Cliffs, NJGoogle Scholar
  5. 5.
    Shanmuganathan P, Lakshmipathiraj P, Srikanth S, Nachiappan AL, Sumathy A (2008) Toxicity characterization and long-term stability studies on copper slag from the ISASMELT process. Resour Conserv Recycl 52(4):601–611CrossRefGoogle Scholar
  6. 6.
    Sohn HY (2014) Non-ferrous process principles and production technologies. Treatise Process Metallurgy Seetharaman S, vol 3. Amsterdam, Elsevier, p 1097CrossRefGoogle Scholar

Copyright information

© The Minerals, Metals & Materials Society 2019

Authors and Affiliations

  1. 1.Formerly UR-CST, School of Mining and GeologyKigaliRwanda

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