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dc.contributor.authorSong, Xingqiang
dc.contributor.authorPettersen, Johan Berg
dc.contributor.authorPedersen, Kristine Bondo
dc.contributor.authorRøberg, Stian
dc.date.accessioned2018-07-02T06:26:54Z
dc.date.available2018-07-02T06:26:54Z
dc.date.created2017-08-18T14:16:05Z
dc.date.issued2017
dc.identifier.citationJournal of Cleaner Production. 2017, 164 892-904.nb_NO
dc.identifier.issn0959-6526
dc.identifier.urihttp://hdl.handle.net/11250/2503852
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.nb_NO
dc.language.isoengnb_NO
dc.publisherElseviernb_NO
dc.titleComparative life cycle assessment of tailings management and energy scenarios for a copper ore mine: A case study in Northern Norwaynb_NO
dc.typeJournal articlenb_NO
dc.typePeer reviewednb_NO
dc.description.versionpublishedVersionnb_NO
dc.source.pagenumber892-904nb_NO
dc.source.volume164nb_NO
dc.source.journalJournal of Cleaner Productionnb_NO
dc.identifier.doi10.1016/j.jclepro.2017.07.021
dc.identifier.cristin1487306
dc.relation.projectNorges forskningsråd: 195160nb_NO
dc.description.localcodeThis article will not be available due to copyright restrictions (c) 2017 by Elseviernb_NO
cristin.unitcode194,64,25,0
cristin.unitnameInstitutt for energi- og prosessteknikk
cristin.ispublishedtrue
cristin.fulltextoriginal
cristin.qualitycode2


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