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Influence of biosurfactants in the recovery of REE from monazite using Burkholderia thailandensis

dc.contributor.authorCastro Ruiz, Laura
dc.contributor.authorGómez-Álvarez, Helena
dc.contributor.authorCarmona, Manuel
dc.contributor.authorMuñoz Sánchez, Jesús Ángel
dc.contributor.authorGonzález González, Felisa
dc.date.accessioned2023-12-13T16:52:44Z
dc.date.available2023-12-13T16:52:44Z
dc.date.issued2023
dc.description.abstractThe demand of rare earth elements (REE) has grown over the past decades due to their importance in high technology devices such as wind turbines, superconductors, rechargeable batteries, autocatalytic converters, magnets, or LED lighting. The development of clean mining processes is gaining interest and the biomining of REE is mainly focused on monazite using phosphate solubilizing microorganisms. The members of the genus Burkholderia can dissolve phosphorous from inorganic rocks. Furthermore, several species of Burkholderia are able to produce biosurfactants named rhamnolipids. Nevertheless, rhamnolipid interactions with REE have been poorly investigated. The aim of the present work is the study of the solubilization of monazite and the recovery of REE using the bacterium Burkholderia thailandensis, and the influence of the rhamnolipids produced by the bacteria in the REE mobilization. B. thailandensis grown in nutrient broth with 1% monazite (w/v) reached 8.3 mg·l−1 REE after 15 days. To produce rhamnolipids, B. thailandensis was grown in medium supplemented with 10% glycerol and the biosurfactants were extracted. The critical micelle concentration (CMC) was determined: 94.45 mg·l−1 for commercial rhamnolipids and 60.41 mg·l−1 for purified rhamnolipids. The maximum REE solubilization was obtained at CMC reaching 9.36 mg·l−1 with commercial rhamnolipids and 5.13 mg·l−1 with rhamnolipids produced by B. thailandensis E264.
dc.description.departmentDepto. de Ingeniería Química y de Materiales
dc.description.facultyFac. de Ciencias Químicas
dc.description.refereedTRUE
dc.description.statuspub
dc.identifier.citationCastro, L.; Gómez-Álvarez, H.; Carmona, M.; González, F.; Muñoz, J. A. Influence of biosurfactants in the recovery of REE from monazite using Burkholderia thailandensis. Hydrometallurgy 2023, 222, 106178.
dc.identifier.doi10.1016/j.hydromet.2023.106178
dc.identifier.issn0304-386X
dc.identifier.officialurlhttps://doi.org/10.1016/j.hydromet.2023.106178
dc.identifier.urihttps://hdl.handle.net/20.500.14352/91257
dc.issue.number222
dc.journal.titleHydrometallurgy
dc.language.isoeng
dc.publisherElservier
dc.relation.projectIDPID2021-125797OB-I00
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 Internationalen
dc.rights.accessRightsopen access
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subject.cdu546.65
dc.subject.cdu546.3
dc.subject.keywordBurkholderia thailandensis
dc.subject.keywordRare earth elements
dc.subject.keywordBioleaching
dc.subject.keywordPhosphate solubilization
dc.subject.keywordMonazite
dc.subject.keywordBiosurfactants
dc.subject.ucmMetalurgia
dc.subject.unesco3303 Ingeniería y Tecnología Químicas
dc.titleInfluence of biosurfactants in the recovery of REE from monazite using Burkholderia thailandensis
dc.typejournal article
dspace.entity.typePublication
relation.isAuthorOfPublication93b5b649-29f0-4442-b669-6ee59981ae2b
relation.isAuthorOfPublication33a3029d-35c9-46ed-b310-c95f9a22b5ef
relation.isAuthorOfPublicationb1e5344c-1e9f-4d57-95a6-53931dc0d4b0
relation.isAuthorOfPublication.latestForDiscovery93b5b649-29f0-4442-b669-6ee59981ae2b

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