Roasting kinetics of crude pyrite as acid mine drainage remediation option: A case study of Merelani

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dc.contributor.authorHiji, M. F.
dc.contributor.authorVuai, S. A.
dc.contributor.authorNtalikwa, J. W.
dc.date.accessioned2020-03-09T10:06:15Z
dc.date.available2020-03-09T10:06:15Z
dc.date.issued2018
dc.descriptionFull text Article Available at: https://revues.imist.ma/index.php?journal=AJEES&page=article&op=view&path%5B%5D=12485en_US
dc.description.abstractLarge-scale production of mine wastes and their secure disposal has been a problem of global concern. In this work, the chemical kinetics of roasting of crude pyrite, a mine waste from Merelani to form sulphur dioxide, a key precursor in the production of sulphuric acid was studied. Conversion of pyrite into sulphur dioxide revealed pseudo first order kinetic with respect of solid reactant in gas-solid system. The activation energy (Ea) value of 15kJ/mol was deduced from Arrhenius equation suggesting that the roasting reaction was controlled by diffusion of oxygen through the ash layer to the reacting surface. The utilisation of crude pyrite overburden will provide not only social economic development but also proper environmental mitigation of acid mine drainage.en_US
dc.identifier.citationHiji, M. F., Vuai, S. A. and Ntalikwa, J. W. (2018). Roasting kinetics of crude pyrite as acid mine drainage remediation option: A case study of Merelani. Applied Journal of Environmental Engineering Science, 4(4), 520-530en_US
dc.identifier.urihttp://hdl.handle.net/20.500.12661/2130
dc.language.isoenen_US
dc.subjectRoastingen_US
dc.subjectMerelanien_US
dc.subjectMine wastesen_US
dc.subjectChemical kineticsen_US
dc.subjectCrude pyriteen_US
dc.subjectAcid mine drainageen_US
dc.subjectEnvironmental mitigationen_US
dc.titleRoasting kinetics of crude pyrite as acid mine drainage remediation option: A case study of Merelanien_US
dc.typeArticleen_US
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