Environmental remediation of sulfidic tailings with froth flotation

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dc.contributor Aalto-yliopisto fi
dc.contributor Aalto University en
dc.contributor.author Nuorivaara, Ted
dc.contributor.author Björkqvist, Anna
dc.contributor.author Bacher, John
dc.contributor.author Serna-Guerrero, Rodrigo
dc.date.accessioned 2019-03-05T10:15:55Z
dc.date.available 2019-03-05T10:15:55Z
dc.date.issued 2019-04-15
dc.identifier.citation Nuorivaara , T , Björkqvist , A , Bacher , J & Serna-Guerrero , R 2019 , ' Environmental remediation of sulfidic tailings with froth flotation : Reducing the consumption of additional resources by optimization of conditioning parameters and water recycling ' Journal of Environmental Management , vol. 236 , pp. 125-133 . https://doi.org/10.1016/j.jenvman.2019.01.107 en
dc.identifier.issn 0301-4797
dc.identifier.issn 1095-8630
dc.identifier.other PURE UUID: e6e1a528-9d8b-4500-962c-73dc5d13e58d
dc.identifier.other PURE ITEMURL: https://research.aalto.fi/en/publications/environmental-remediation-of-sulfidic-tailings-with-froth-flotation(e6e1a528-9d8b-4500-962c-73dc5d13e58d).html
dc.identifier.other PURE LINK: http://www.scopus.com/inward/record.url?scp=85061326985&partnerID=8YFLogxK
dc.identifier.uri https://aaltodoc.aalto.fi/handle/123456789/37037
dc.description.abstract The removal of sulfidic species in tailings using froth flotation is a promising approach to prevent phenomena such as acid mine drainage. However, flotation requires the consumption of reagents and water that represent additional expenses. Despite the strong interest of scientists and industry alike on tailings remediation, there is no study on the minimization of resource consumption to promote the implementation of desulfurization with froth flotation. Following a systematic analysis based on Design of Experiments (DoE), this work aims to determine the implications of a decrease in the consumption of flotation reagents and fresh water. It was found that: i) recovery of sulfidic species is strongly influenced by collector concentration and the use of a preliminary re-dispersion step; ii) higher frother concentrations have a negative impact on sulfur grade in the concentrate; and iii) the interactions between the conditioning variables hereby explored have no significant impact on flotation performance. Composition analysis showed that flotation further aids in the removal of hazardous species, such as As, Co and Zn. Finally, the use of recycled water appears possible since flotation performance remained unchanged over 10 flotation cycles, despite the observed accumulation of metallic ions and organic species in the process water. en
dc.format.extent 9
dc.format.extent 125-133
dc.language.iso en en
dc.publisher Academic Press Inc.
dc.relation.ispartofseries Journal of Environmental Management en
dc.relation.ispartofseries Volume 236 en
dc.rights embargoedAccess en
dc.subject.other Environmental Engineering en
dc.subject.other Waste Management and Disposal en
dc.subject.other Management, Monitoring, Policy and Law en
dc.subject.other 215 Chemical engineering en
dc.subject.other material efficiency en
dc.subject.other recycling en
dc.title Environmental remediation of sulfidic tailings with froth flotation en
dc.type A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä fi
dc.description.version Peer reviewed en
dc.contributor.department Department of Chemical and Metallurgical Engineering
dc.contributor.department Helsinki School of Economics
dc.contributor.department VTT Technical Research Centre of Finland
dc.contributor.department Department of Chemical and Metallurgical Engineering en
dc.subject.keyword Acid mine drainage
dc.subject.keyword Flotation
dc.subject.keyword Mining waste remediation
dc.subject.keyword Tailings
dc.subject.keyword Water recirculation
dc.subject.keyword Environmental Engineering
dc.subject.keyword Waste Management and Disposal
dc.subject.keyword Management, Monitoring, Policy and Law
dc.subject.keyword 215 Chemical engineering
dc.subject.keyword material efficiency
dc.subject.keyword recycling
dc.identifier.urn URN:NBN:fi:aalto-201903052183
dc.identifier.doi 10.1016/j.jenvman.2019.01.107
dc.date.embargo info:eu-repo/date/embargoEnd/2021-02-02

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