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Integration of membrane processes for the recovery and separation of polyphenols from winery and olive mill wastes using green solvent-based processing

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10.1016/j.jenvman.2022.114555
 
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Tapia Quirós, PaulinaMés informació
Montenegro Landivar, María FernandaMés informacióMés informació
Reig i Amat, MònicaMés informacióMés informacióMés informació
Vecino Bello, XanelMés informacióMés informació
Saurina, Javier
Granados Juan, MercèMés informació
Cortina Pallás, José LuísMés informacióMés informacióMés informació
Document typeArticle
Defense date2022-04-01
PublisherElsevier
Rights accessOpen Access
Attribution-NonCommercial-NoDerivs 4.0 International
Except where otherwise noted, content on this work is licensed under a Creative Commons license : Attribution-NonCommercial-NoDerivs 4.0 International
Abstract
Winery and olive mill industries generate large amounts of wastes causing important environmental problems. The main aim of this work is the evaluation of different membrane separation processes like microfiltration, ultrafiltration, nanofiltration, and reverse osmosis for the recovery of polyphenols from winery and olive mill wastes in aqueous solutions. Membrane processes were tested separately in a closed-loop system, and by an integration in a concentration mode sequential design (open-loop). Feed flow rate was varied from 1 to 10 mL min-1, and permeate samples were taken in order to measure the polyphenols concentration. The separation and concentration efficiency were evaluated in terms of total polyphenol content, and by polyphenols families (hydroxybenzoic acids (HB), hydroxycinnamic acids (HC), and flavonoids (F)), using high performance liquid chromatography. Results showed that MF and UF membranes removed suspended solids and colloids from the extracts. NF was useful for polyphenols separation (HB rejections were lower than for HC and F: HB rejections of 50 and 63% for lees filters and olive pomace extracts, respectively), and RO membranes were able to concentrate polyphenols streams (86 and 95% rejection from lees filters and olive pomace, respectively). Membranes sequential designs for lees filters and olive pomace extracts, using a selective membrane train composed by UF, NF and RO membranes, were able to obtain polyphenol rich streams and high-quality water streams for reuse purposes.
CitationTapia, P. [et al.]. Integration of membrane processes for the recovery and separation of polyphenols from winery and olive mill wastes using green solvent-based processing. "Journal of environmental management", 1 Abril 2022, vol. 307, p. 114555:1-114555:12. 
URIhttp://hdl.handle.net/2117/364387
DOI10.1016/j.jenvman.2022.114555
ISSN1095-8630
Publisher versionhttps://www.sciencedirect.com/science/article/pii/S0301479722001281
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  • Doctorat en Enginyeria de Processos Químics - Articles de revista [105]
  • R2EM - Resource Recovery and Environmental Management - Articles de revista [185]
  • Departament d'Enginyeria Química - Articles de revista [2.116]
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