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dc.contributor.authorRuiz Aguirre, Alba
dc.contributor.authorLópez Rodríguez, Julio
dc.contributor.authorGueccia, Rosa
dc.contributor.authorRandazzo, Serena
dc.contributor.authorCipollina, Andrea
dc.contributor.authorCortina Pallás, José Luís
dc.contributor.authorMicale, Giorgio
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament d'Enginyeria Química
dc.identifier.citationRuiz-Aguirre, A. [et al.]. Diffusion dialysis for the treatment of H2SO4-CuSO4 solutions from electroplating plants: Ions membrane transport characterization and modelling. "Separation and purification technology", Juliol 2021, vol. 266, p. 118215/1-118215/13.
dc.description.abstractDiffusion dialysis (DD) is proposed to separate and recover mineral acids and transition metals from electroplating industry process waters promoting a circular approach of resources recovery. In this work, a DD module with two anionic membranes (Fumasep FAD and Neosepta AFN) are used for the separation of H2SO4 from Cu2+ containing solutions. The membrane performances with sole H2SO4 solutions (0.2–2 M) and sole CuSO4 solutions (0.8–1.1 M Cu2+) and with mixtures of H2SO4 (0.6 M) and CuSO4 (0.2–1.1 M Cu2+) as feed are studied. H2SO4 recovery efficiency decreases as the concentration of acid increases. For H2SO4 solutions, the water drag flux from the retentate to the diffusate prevails against the osmotic flux for all concentrations investigated. Conversely, the presence of CuSO4 in solution enhanced the osmotic flux and slightly negatively affected the acid recovery. The osmotic flux is higher for Fumasep FAD. A distributed parameter model consisting of a set of spatial differential equations for the DD channels and a dynamic section including time-dependent differential equations for batch operations is constructed and then validated using experimental results
dc.rightsAttribution-NonCommercial-NoDerivs 3.0 Spain
dc.subjectÀrees temàtiques de la UPC::Enginyeria química
dc.subject.lcshCircular economy
dc.subject.lcshSewage -- Purification
dc.subject.otherCopper electroplating
dc.subject.otherSulphuric acid recovery
dc.subject.otherBrine valorization
dc.subject.otherCircular economy
dc.subject.otherIndustrial wastewater treatment
dc.subject.otherDiffusion dialysis
dc.titleDiffusion dialysis for the treatment of H2SO4-CuSO4 solutions from electroplating plants: Ions membrane transport characterization and modelling
dc.subject.lemacEconomia circular
dc.subject.lemacAigües residuals -- Depuració
dc.contributor.groupUniversitat Politècnica de Catalunya. R2EM - Resource Recovery and Environmental Management
dc.description.peerreviewedPeer Reviewed
dc.rights.accessRestricted access - publisher's policy
dc.description.versionPostprint (author's final draft)
local.citation.authorRuiz-Aguirre, A.; Lopez, J.; Gueccia, R.; Randazzo, S.; Cipollina, A.; Cortina, J.; Micale, G.
local.citation.publicationNameSeparation and purification technology

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Attribution-NonCommercial-NoDerivs 3.0 Spain
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