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Application of Nanofiltration and Reverse Osmosis Membranes for Tannery Wastewater Reuse

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Application of Nanofiltration and Reverse Osmosis Membranes for Tannery Wastewater Reuse

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dc.contributor.author Fernandez-Medrano, Vilma es_ES
dc.contributor.author Cuartas Uribe, Beatriz Elena es_ES
dc.contributor.author Bes-Piá, M.A. es_ES
dc.contributor.author Mendoza Roca, José Antonio es_ES
dc.date.accessioned 2023-05-12T18:01:49Z
dc.date.available 2023-05-12T18:01:49Z
dc.date.issued 2022-07 es_ES
dc.identifier.issn 2073-4441 es_ES
dc.identifier.uri http://hdl.handle.net/10251/193313
dc.description.abstract [EN] Tanneries produce large amounts of wastewater with high concentrations of suspended solids, organic matter, and salts. Treatment and reuse of these effluents are of great importance to preserve water resources and save costs. Although suspended solids and high percentages of organic matter can be eliminated by physico-chemical and biological processes, refractory chemical oxygen demand (COD) and salts will remain in the wastewater after these processes. In particular, chloride and sulphate ion concentrations may hinder the treated wastewater from being reused or even discharged according to legal standards. In this work, two nanofiltration membranes and two reverse osmosis membranes are tested to assess these technologies as regeneration processes for biologically treated tannery wastewater. Permeate flux and rejection of organic matter and ions were measured at different operating conditions (transmembrane pressure and cross-flow velocities) at both total recycle and concentration modes. Results showed that the difference between permeate fluxes of nanofiltration (NF) membranes and reverse osmosis (RO) membranes was very high. Thus, at 20 bar and 1.77 m s¿1, the permeate flux of the two tested NF membranes in the total recycle mode experiments were 106 and 67 L m¿2 h¿1, while the obtained permeate fluxes for the RO membranes were 25 and 18 L m¿2 h¿1. Concerning rejections, RO membranes rejected almost 100% of the salts, whereas NF membranes reduced their rejection when faced with increasing concentration factors (salt rejection between 50¿60% at the highest concentration factor). In addition, the fouling of RO membranes was lower than that of NF membranes, recovering more than 90% of initial permeability by only water rinsing. In contrast, chemical cleaning was necessary to increase the permeability recovery of the NF membranes above 90%. The considerably lower rejections and the higher membrane fouling of the NF membranes lead us to conclude that reverse osmosis could be the most feasible technique for water reuse in the tannery industry, though the permeate fluxes are lower than those achieved with NF membranes. es_ES
dc.description.sponsorship This research was funded by Universitat Politecnica de Valencia (project ref: PAID-06-10-2269). es_ES
dc.language Inglés es_ES
dc.publisher MDPI AG es_ES
dc.relation.ispartof Water es_ES
dc.rights Reconocimiento (by) es_ES
dc.subject Tannery wastewater es_ES
dc.subject Nanofiltration es_ES
dc.subject Reverse osmosis es_ES
dc.subject Fouling es_ES
dc.subject.classification INGENIERIA QUIMICA es_ES
dc.title Application of Nanofiltration and Reverse Osmosis Membranes for Tannery Wastewater Reuse es_ES
dc.type Artículo es_ES
dc.identifier.doi 10.3390/w14132035 es_ES
dc.relation.projectID info:eu-repo/grantAgreement/UPV//PAID-06-10-2269/ es_ES
dc.rights.accessRights Abierto es_ES
dc.contributor.affiliation Universitat Politècnica de València. Escuela Técnica Superior de Ingenieros Industriales - Escola Tècnica Superior d'Enginyers Industrials es_ES
dc.description.bibliographicCitation Fernandez-Medrano, V.; Cuartas Uribe, BE.; Bes-Piá, M.; Mendoza Roca, JA. (2022). Application of Nanofiltration and Reverse Osmosis Membranes for Tannery Wastewater Reuse. Water. 14(13):1-16. https://doi.org/10.3390/w14132035 es_ES
dc.description.accrualMethod S es_ES
dc.relation.publisherversion https://doi.org/10.3390/w14132035 es_ES
dc.description.upvformatpinicio 1 es_ES
dc.description.upvformatpfin 16 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 14 es_ES
dc.description.issue 13 es_ES
dc.relation.pasarela S\468180 es_ES
dc.contributor.funder Universitat Politècnica de València es_ES
dc.subject.ods 06.- Garantizar la disponibilidad y la gestión sostenible del agua y el saneamiento para todos es_ES


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