Heavy metal adsorption using biogenic iron compounds

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dc.contributor.authorCastro Ruiz, Laura
dc.contributor.authorBlázquez Izquierdo, María Luisa
dc.contributor.authorGonzález González, Felisa
dc.contributor.authorMuñoz Sánchez, Jesús Ángel
dc.contributor.authorBallester Pérez, Antonio
dc.date.accessioned2023-12-13T15:56:35Z
dc.date.available2023-12-13T15:56:35Z
dc.date.issued2018
dc.description.abstractA significant number of industries produce large volumes of aqueous effluents containing heavy metals that discharge into the environment threatening biodiversity and human life. However, such effluents pose serious problems for the industry because of the high cost of metal decontamination using conventional technologies. The aim of this work is to study a suitable alternative through the use of iron compounds generated by a natural consortium with adsorptive properties appropriated for metal removal. The biogenic iron precipitates were identified as a mixture containing mainly siderite and magnetite. The use as sorbent was investigated to remove copper, zinc, arsenate and chromate from aqueous solutions. Variables such as the initial pH, contact time and initial metal concentration were evaluated. Three models were used to study the adsorption kinetic: pseudo first order, pseudo second order and Elovich models. Equilibrium data were fitted to Langmuir and Freundlich isotherm models. Higher metal uptakes were obtained with arsenic. Metal sorption was also investigated in the bimetallic system As-Cu.
dc.description.departmentDepto. de Ingeniería Química y de Materiales
dc.description.facultyFac. de Ciencias Químicas
dc.description.refereedTRUE
dc.description.sponsorshipMinisterio de Economía y Competitividad (España)
dc.description.statuspub
dc.identifier.citationCastro L, Blázquez ML, González F, Muñoz JA, Ballester A. Heavy metal adsorption using biogenic iron compounds. Hydrometallurgy. 2018;179:44-51.
dc.identifier.doi10.1016/j.hydromet.2018.05.029
dc.identifier.issn0304-386X
dc.identifier.officialurlhttps://doi.org/10.1016/j.hydromet.2018.05.029
dc.identifier.urihttps://hdl.handle.net/20.500.14352/91243
dc.journal.titleHydrometallurgy
dc.language.isoeng
dc.page.final55
dc.page.initial44
dc.publisherElsevier
dc.relation.projectIDMAT2014-59222R
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 Internationalen
dc.rights.accessRightsrestricted access
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subject.keywordBiogenic iron compounds
dc.subject.keywordAdsorption
dc.subject.keywordHeavy metals
dc.subject.keywordMicrobial consortium
dc.subject.keywordPolluted waters
dc.subject.ucmMateriales
dc.subject.ucmMetalurgia
dc.subject.unesco3303 Ingeniería y Tecnología Químicas
dc.titleHeavy metal adsorption using biogenic iron compounds
dc.typejournal article
dc.type.hasVersionVoR
dc.volume.number179
dspace.entity.typePublication
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relation.isAuthorOfPublication.latestForDiscovery93b5b649-29f0-4442-b669-6ee59981ae2b
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