Ultrafiltration of residual fermentation brines from the production of table olives at different operating conditions
| Autor: | Carlos Carbonell-Alcaina, María Amparo Bes-Piá, Silvia Álvarez-Blanco, Laura Pastor-Alcañiz, José Antonio Mendoza-Roca |
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| Rok vydání: | 2018 |
| Předmět: |
Strategy and Management
Polyethersulfone membranes Ultrafiltration 02 engineering and technology 010501 environmental sciences Residual 01 natural sciences INGENIERIA QUIMICA Industrial and Manufacturing Engineering Transmembrane pressure Permeate flux Turbidity 0105 earth and related environmental sciences General Environmental Science Chromatography Renewable Energy Sustainability and the Environment Chemistry 021001 nanoscience & nanotechnology Phenolic compounds Membrane Fermentation 0210 nano-technology Selectivity Table olive fermentation brine wastewater |
| Zdroj: | RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia instname |
| ISSN: | 0959-6526 |
| Popis: | [EN] The membrane process of ultrafiltration (UF) has been investigated as a pretreatment previous to the further recovery and concentration of phenolic compounds from residual table olives fermentation brines. Two UF membranes were tested: a permanently hydrophilic polyethersulfone (PES) membrane with a molecular weight cut-off (MWCO) of 30 kDa and a PES membrane with a MWCO of 5 kDa. Transmembrane pressure and crossflow velocity were varied from 1 to 3 bar and from 2.2 to 3.7 m s(-1), respectively. The best membrane in terms of permeate flux and selectivity was that with MWCO of 5 kDa and the best operating conditions were transmembrane pressure of 3 bar and crossflow velocity of 2.2 m s(-1). In these conditions permeate flux was 21.6 L h(-1).m(-2), while the rejection of COD and phenolic compounds were 50.0% and 21.9%, respectively and the removal of colour and turbidity was almost complete. In addition, an alkaline cleaning protocol was proposed, which was effective to restore the initial permeability of the selected membrane. (C) 2018 Elsevier Ltd. All rights reserved. The authors of this work wish to gratefully acknowledge the financial support of CDTI (Centre for Industrial Technological Development) depending on the Spanish Ministry of Science and Innovation (INNPRONTA program, ITP-20111020). |
| Databáze: | OpenAIRE |
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