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dc.contributor.authorSong, Xingqiang
dc.contributor.authorPettersen, Johan Berg
dc.contributor.authorPedersen, Kristine Bondo
dc.contributor.authorRøberg, Stian
dc.date.accessioned2018-06-27T11:45:13Z
dc.date.available2018-06-27T11:45:13Z
dc.date.issued2017-07-05
dc.description.abstractIn support of continuous environmental improvement in the mining industry, it is important to systematically assess the environmental impacts of mining and mineral processing operations from a life cycle perspective. Although life cycle assessment (LCA) is widely used as an environmental systems analysis tool, the application of LCA in the mining industry is still in progress. This paper carried out a cradle-to-gate LCA of an underground copper ore mine planned in Northern Norway. Based on the ReCiPe midpoint (hierarchist) life cycle impact assessment method, results of the study showed that onsite electricity use, diesel for mining trucks and blasting dominated contributions across six, four and four, respectively, of the eighteen categories assessed, and metals leaching from tailings were the primary contributors to the human toxicity and marine ecotoxicity impacts. Compared to the baseline, results of the energy-oriented scenario analysis indicated that electrification of diesel-driven mining trucks would be more environmentally beneficial as long as the electrical supply is “relatively clean” across impact categories. While electrodialytic tailings remediation could extract up to 64% of copper in tailings prior to disposal and significantly reduce the human toxicity impact of tailings, the marine ecotoxicity impact of tailings after electrodialysis changed inconsistently across the ReCiPe hierarchist and egalitarian perspectives. It is recommended to further assess the trade-off between the benefits of electrodialytic tailings remediation (extracting more copper) and the potential impacts of deposited tailings after electrodialysis from a multi-criteria decision-analysis perspective. In a generic context, this study provides an insight in further promoting LCA as an environmental decision-support tool, especially for comparing available cleaner production options, improving the overall environmental performance of a mine, and facilitating better communication with stakeholders.en_US
dc.descriptionAccepted manuscript version. Published version available in <a href= https://doi.org/10.1016/j.jclepro.2017.07.021> Comparative life cycle assessment of tailings management and energy scenarios for a copper ore mine: A case study in Northern Norway (2017), 164, s.892-904. </a>en_US
dc.identifier.citationSong, X., Pettersen, J.B., Pedersen, K.B.& Røberg, S. (2017). Comparative life cycle assessment of tailings management and energy scenarios for a copper ore mine: A case study in Northern Norway. Journal of Cleaner Production,164, 892-904. https://doi.org/10.1016/j.jclepro.2017.07.021en_US
dc.identifier.cristinIDFRIDAID 1487306
dc.identifier.doi10.1016/j.jclepro.2017.07.021
dc.identifier.issn0959-6526
dc.identifier.issn1879-1786
dc.identifier.urihttps://hdl.handle.net/10037/13023
dc.language.isoengen_US
dc.publisherElsevieren_US
dc.relation.journalJournal of Cleaner Production
dc.relation.projectIDinfo:eu-repo/grantAgreement/RCN/NORDSATS/195160/Norway/Northern Environmental Waste Management//.en_US
dc.rights.accessRightsopenAccessen_US
dc.subjectVDP::Mathematics and natural science: 400::Geosciences: 450::Mineralogy, petrology, geochemistry: 462en_US
dc.subjectVDP::Mathematics and natural science: 400::Geosciences: 450::Mineralogy, petrology, geochemistry: 462en_US
dc.subjectLife cycle assessmenten_US
dc.subjectCopper miningen_US
dc.subjectEnergyen_US
dc.subjectTailings managementen_US
dc.subjectElectrokinetic remediationen_US
dc.titleComparative life cycle assessment of tailings management and energy scenarios for a copper ore mine: A case study in Northern Norwayen_US
dc.typeJournal articleen_US
dc.typeTidsskriftartikkelen_US
dc.typePeer revieweden_US


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