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Treatment of table olive processing wastewaters using novel photomodified ultrafiltration membranes as first step for recovering phenolic compounds

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Treatment of table olive processing wastewaters using novel photomodified ultrafiltration membranes as first step for recovering phenolic compounds

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dc.contributor.author García Ivars, Jorge es_ES
dc.contributor.author Iborra Clar, María Isabel es_ES
dc.contributor.author Alcaina Miranda, María Isabel es_ES
dc.contributor.author Mendoza Roca, José Antonio es_ES
dc.contributor.author Pastor Alcañiz, Laura es_ES
dc.date.accessioned 2015-05-07T12:09:55Z
dc.date.available 2015-05-07T12:09:55Z
dc.date.issued 2015-02-25
dc.identifier.issn 0304-3894
dc.identifier.uri http://hdl.handle.net/10251/49870
dc.description.abstract Table olive processing wastewaters (TOPW) have high salt concentration and total phenolic content (TPC) causing many environmental problems. To reduce them, ultrafiltration (UF) was applied for treating TOPW. However, NaCl, which is the main responsible of salinity in TOPW, and phenols are small molecules that cannot be separated by conventional UF membranes. They have serious problems caused by fouling, which can be overcome using membrane modification techniques. For these reasons, photomodification may be an effective technique to obtain a stream rich in TPC due to the changes in membrane surface properties. UV-modification in the presence of two hydrophilic compounds (polyethylene glycol and aluminium oxide) was performed to achieve membranes with high reductions of organic matter and to keep the TPC as high as possible. Commercial polyethersulfone (PES) membranes of 30 kDa were used. Surface modification was evaluated using FTIR-ATR spectroscopy and membrane performance was studied by calculating the rejection ratios of colour, chemical oxygen demand (COD) and TPC. Results demonstrated that UF is a useful pre-treatment to reduce organic matter from TOPW, obtaining a permeate rich in TPC. PES/Al2O3 membranes displayed superior antifouling properties and rejection values, keeping high the TPC (>95%). Therefore, UF using modified membranes is an appropriate and sustainable technique for treating TOPW. es_ES
dc.description.sponsorship The authors thank the financial support of CDTI (Centre for Industrial Technological Development) depending on the Spanish Ministry of Science and Innovation. The authors also thank the Center for Biomaterials and Tissue Engineering (Universitat Politecnica de Valencia) for FTIR-ATR and contact angle measurements. en_EN
dc.language Inglés es_ES
dc.publisher Elsevier es_ES
dc.relation CDTI (Centre for Industrial Technological Development) depending on the Spanish Ministry of Science and Innovation es_ES
dc.relation Center for Biomaterials and Tissue Engineering (Universitat Politècnica de València) es_ES
dc.relation.ispartof Journal of Hazardous Materials es_ES
dc.rights Reserva de todos los derechos es_ES
dc.subject Hydrophilicity es_ES
dc.subject Phenolic compound es_ES
dc.subject Olive wastewater es_ES
dc.subject Antifouling es_ES
dc.subject Surface modification es_ES
dc.subject.classification INGENIERIA QUIMICA es_ES
dc.title Treatment of table olive processing wastewaters using novel photomodified ultrafiltration membranes as first step for recovering phenolic compounds es_ES
dc.type Artículo es_ES
dc.identifier.doi 10.1016/j.jhazmat.2015.02.062
dc.rights.accessRights Abierto es_ES
dc.contributor.affiliation Universitat Politècnica de València. Instituto de Seguridad Industrial, Radiofísica y Medioambiental - Institut de Seguretat Industrial, Radiofísica i Mediambiental es_ES
dc.contributor.affiliation Universitat Politècnica de València. Departamento de Ingeniería Química y Nuclear - Departament d'Enginyeria Química i Nuclear es_ES
dc.contributor.affiliation Universitat Politècnica de València. Departamento de Ingeniería Hidráulica y Medio Ambiente - Departament d'Enginyeria Hidràulica i Medi Ambient es_ES
dc.description.bibliographicCitation García Ivars, J.; Iborra Clar, MI.; Alcaina Miranda, MI.; Mendoza Roca, JA.; Pastor Alcañiz, L. (2015). Treatment of table olive processing wastewaters using novel photomodified ultrafiltration membranes as first step for recovering phenolic compounds. Journal of Hazardous Materials. 290:51-59. doi:10.1016/j.jhazmat.2015.02.062 es_ES
dc.description.accrualMethod S es_ES
dc.relation.publisherversion http://dx.doi.org/10.1016/j.jhazmat.2015.02.062 es_ES
dc.description.upvformatpinicio 51 es_ES
dc.description.upvformatpfin 59 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 290 es_ES
dc.relation.senia 282522


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