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dc.contributor.authorLicon Bernal, Edxon Eduardo
dc.contributor.authorReig i Amat, Mònica
dc.contributor.authorVillanova Arrugas, María del Pilar
dc.contributor.authorValderrama Angel, César Alberto
dc.contributor.authorGibert Agulló, Oriol
dc.contributor.authorCortina Pallás, José Luís
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament d'Enginyeria Química
dc.identifier.citationLicon , E., Reig, M., Villanova, P., Valderrama, C., Gibert, O., Cortina, J. Ammonium removal by liquid–liquid membrane contactors in water purification process for hydrogen production. "Desalination and water treatment", 1 Gener 2015, vol. 56, núm. 13, p. 3607-3616.
dc.description.abstract© 2014 Balaban Desalination Publications. All rights reserved. In this work, a liquid–liquid membrane contactor (LLMC) was evaluated to remove ammonia traces from water used for hydrogen production by electrolysis. Three operational parameters were evaluated: the feed flow rate, the initial ammonia concentration in the water stream, and the pH of solution. Synthetic aqueous solutions with ammonium concentration of 5–25 mg L-1 and a sulfuric acid solution (pH 2) were supplied to the LLMC in countercurrent and open-loop configuration with flow rates between 2.72 × 10-6 and 22.6 × 10-6 m3 s-1 and the pH values of the solution with ammonium between 8 and 11. A 2D numerical model was developed considering advection–diffusion equation inside a single fiber of the lumen with fully developed laminar flow and liquid–gas equilibrium in the membrane–solution interface. Predictions of the model were then validated against experimental data, which were found to be in good agreement. According to both, experimental data and numerical predictions, the hollow-fiber membrane contactor technology is a suitable alternative to remove ammonium from water and to feed the membrane distillation unit in order to fulfill water quality requirements for electrolysis-based hydrogen production.
dc.format.extent10 p.
dc.subjectÀrees temàtiques de la UPC::Enginyeria química
dc.subject.otherAmmonium removal
dc.subject.otherMembrane contactors
dc.subject.otherNumerical simulation
dc.subject.otherOpen-loop configuration
dc.titleAmmonium removal by liquid–liquid membrane contactors in water purification process for hydrogen production
dc.subject.lemacAigua -- Depuració
dc.contributor.groupUniversitat Politècnica de Catalunya. SETRI - Grup de Tècniques de Separació i Tractament de Residus Industrials
dc.description.peerreviewedPeer Reviewed
dc.rights.accessOpen Access
dc.description.versionPostprint (author's final draft)
local.citation.authorLicon, E.; Reig, M.; Villanova, P.; Valderrama, C.; Gibert, O.; Cortina, J.
local.citation.publicationNameDesalination and water treatment

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