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dc.contributor.authorVirtanen, Emilia J.
dc.contributor.authorKukkonen, Esa
dc.contributor.authorYliharju, Janne
dc.contributor.authorTuomisto, Minnea
dc.contributor.authorFrimodig, Janne
dc.contributor.authorKinnunen, Kimmo
dc.contributor.authorLahtinen, Elmeri
dc.contributor.authorHänninen, Mikko M.
dc.contributor.authorVäisänen, Ari
dc.contributor.authorHaukka, Matti
dc.contributor.authorMoilanen, Jani O.
dc.date.accessioned2024-07-04T07:28:05Z
dc.date.available2024-07-04T07:28:05Z
dc.date.issued2025
dc.identifier.citationVirtanen, E. J., Kukkonen, E., Yliharju, J., Tuomisto, M., Frimodig, J., Kinnunen, K., Lahtinen, E., Hänninen, M. M., Väisänen, A., Haukka, M., & Moilanen, J. O. (2025). Recovery of rare earth elements from mining wastewater with aminomethylphosphonic acid functionalized 3D-printed filters. <i>Separation and Purification Technology</i>, <i>353</i>, Article 128599. <a href="https://doi.org/10.1016/j.seppur.2024.128599" target="_blank">https://doi.org/10.1016/j.seppur.2024.128599</a>
dc.identifier.otherCONVID_220966557
dc.identifier.urihttps://jyx.jyu.fi/handle/123456789/96292
dc.description.abstractHerein we report the use of nylon-12-based 3D-printed filters incorporating α-aminomethylphosphonic acid as an active additive for the recovery of Y, Nd, and Dy from the mining waste solution containing Al, K, Ca, Sc, Fe, Co, Cu, Zn, Y, Nd, Dy, and U. Nylon-12 was chosen for the polymer matrix of the filter due to its inactivity towards the studied metals. The micrometer-level structure of the filters was studied with a scanning helium ion microscope and X-ray tomography to reveal the porosity, pore size, and active additive distribution in the filters. Furthermore, FTIR spectroscopy was used to analyze the compositional changes in the 3D-printed filters after the printing and adsorption processes. Adsorption of the metals was studied at a pH range of 1–4, and the following adsorption trend Sc > Fe > U > Y, Nd, Dy > Al, Cu, Zn > K, Ca, Co was observed in each of the studied pH values. The sequential recovery process for metals was studied at pH 2, and desorption of the metals from the filters was performed with 6 M HNO3. 100 % adsorption of REEs, Fe, and U was achieved during the recovery process, and on average, over 88 % of the adsorbed Y, Nd, and Dy were desorbed from the filters. In contrast to Y, Nd, and Dy, the desorption of Sc, Fe, and U was minimal (Fe and U) or negligible (Sc) with 6 M HNO3 due to their strong coordination to the active additive. Maximum adsorption capacities for Y, Nd, Dy, and U were determined by using linear Langmuir adsorption isotherm. The best maximum adsorption capacity was determined for Sc, Qmax = 0.51 mmol/g followed by U, Nd, Dy, and Y with capacities of 0.47, 0.24, 0.23, and 0.17 mmol/g, respectively. Overall, this study achieved a complete removal of Sc, Fe, and U from the simulated mining waste solution leaving a final eluate that mainly contained Y (320 μg), Nd (350 μg), Dy (330 μg), and Al (710 μg) demonstrating the applicability of the 3D-printed filters in the recovery of Y, Nd, and Dy from the multimetal solution.en
dc.format.mimetypeapplication/pdf
dc.language.isoeng
dc.publisherElsevier
dc.relation.ispartofseriesSeparation and Purification Technology
dc.rightsCC BY 4.0
dc.subject.otherrare earth elements
dc.subject.other3D printing
dc.subject.othermining waste
dc.subject.otherrecovery
dc.subject.otherseparation
dc.titleRecovery of rare earth elements from mining wastewater with aminomethylphosphonic acid functionalized 3D-printed filters
dc.typearticle
dc.identifier.urnURN:NBN:fi:jyu-202407045120
dc.contributor.laitosKemian laitosfi
dc.contributor.laitosFysiikan laitosfi
dc.contributor.laitosDepartment of Chemistryen
dc.contributor.laitosDepartment of Physicsen
dc.type.urihttp://purl.org/eprint/type/JournalArticle
dc.type.coarhttp://purl.org/coar/resource_type/c_2df8fbb1
dc.description.reviewstatuspeerReviewed
dc.relation.issn1383-5866
dc.relation.volume353
dc.type.versionpublishedVersion
dc.rights.copyright© 2024 The Authors. Published by Elsevier B.V.
dc.rights.accesslevelopenAccessfi
dc.relation.grantnumber315829
dc.relation.grantnumber338733
dc.subject.yso3D-tulostus
dc.subject.ysokaivostoiminta
dc.subject.ysoerottelu
dc.subject.ysokaivosvesi
dc.subject.ysosuodattimet
dc.format.contentfulltext
jyx.subject.urihttp://www.yso.fi/onto/yso/p27475
jyx.subject.urihttp://www.yso.fi/onto/yso/p3143
jyx.subject.urihttp://www.yso.fi/onto/yso/p9103
jyx.subject.urihttp://www.yso.fi/onto/yso/p37776
jyx.subject.urihttp://www.yso.fi/onto/yso/p7454
dc.rights.urlhttps://creativecommons.org/licenses/by/4.0/
dc.relation.doi10.1016/j.seppur.2024.128599
dc.relation.funderResearch Council of Finlanden
dc.relation.funderResearch Council of Finlanden
dc.relation.funderSuomen Akatemiafi
dc.relation.funderSuomen Akatemiafi
jyx.fundingprogramAcademy Research Fellow, AoFen
jyx.fundingprogramAcademy Project, AoFen
jyx.fundingprogramAkatemiatutkija, SAfi
jyx.fundingprogramAkatemiahanke, SAfi
jyx.fundinginformationWe thank the University of Jyväskylä, the Research Council of Finland (projects 315829 and 338733), the Technology Industries of Finland Centennial Foundation and Jane and Aatos Erkko Foundation for their financial support.
dc.type.okmA1


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