Special Issue "Membrane Technology for Circular Economy: Recovery of Bioactive Compounds from Industrial Processes"

A special issue of Separations (ISSN 2297-8739). This special issue belongs to the section "Environmental Separations".

Deadline for manuscript submissions: closed (20 August 2023) | Viewed by 651

Special Issue Editors

Institute of Food Engineering for Development (IIAD), Universitat Politècnica de València, Camino de Vera, 46022 Valencia, Spain
Interests: membrane technology; valorization; recovery; bioactive compounds; by-products; wastewater; sustainability; biorefinery; circular economy
Research Institute for Industrial, Radiophysical and Environmental Safety (ISIRYM), Universitat Politècnica de València, València, Spain
Interests: membrane technology; valorization; recovery; bioactive compounds; by-products; wastewater; sustainability; biorefinery; circular economy

Special Issue Information

Dear Colleagues,

In recent years, there has been increasing interest in the implementation of concepts such as circular economy and sustainability in industrial processes.

Membrane technology is a form of separation technology that plays an important role in the recovery of valuable compounds due to its versatility and soft operating conditions.

In particular, this Special Issue is focused on the recovery of bioactive compounds from industrial processes via membrane technology. Bioactive compounds are substances such as antioxidants, proteins, sugars, nucleotides, natural colorants, etc., that have physiological benefits on human health beyond classical nutritional properties. Bioactive compounds can be found and recovered from intermediate and final wastewaters from industrial processes including but not limited to food, biotechnological, pharmaceutical, and environmental industries.

For this Special Issue, we invite you to submit original articles that describe your latest research findings or review papers in the field.

We look forward to receiving your valuable contributions.

Prof. Dr. Esperanza María Garcia-Castello
Prof. Dr. Antonio D. Rodriguez-Lopez
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Separations is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • membrane technology
  • biocompounds
  • industry wastewater
  • by-product
  • biorefinery
  • circular economy
  • sustainability
  • valorization

Published Papers (1 paper)

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Research

Article
Clarification of the Cardoon (Cynara cardunculus) Blanching Wastewater by Ultrafiltration—Study of Membrane Fouling and Flux Recovery after Chemical Cleaning
Separations 2023, 10(7), 418; https://doi.org/10.3390/separations10070418 - 24 Jul 2023
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Abstract
This study focused on the clarification of real blanching wastewaters from the industrial processing of cardoon, a plant rich in polyphenols and belonging to the artichoke family (Cynara cardunculus). The aim of this study was to evaluate the performance of ultrafiltration [...] Read more.
This study focused on the clarification of real blanching wastewaters from the industrial processing of cardoon, a plant rich in polyphenols and belonging to the artichoke family (Cynara cardunculus). The aim of this study was to evaluate the performance of ultrafiltration (UF) as an initial clarification step prior to a subsequent nanofiltration treatment for the recovery and fractionation of polyphenols from these wastewaters. In this UF process, three commercial UF membranes with different pore sizes: 3 kDa, 15 kDa, and 50 kDa. The assessment of the clarification process was based on two key factors: permeate flux and the concentration of phenolic compounds. The membrane with a MWCO of 3 kDa was excluded as a potential UF membrane due to its limited performance in terms of permeate flux. The 15 kDa membrane showed comparable results in terms of cumulative flux to the 50 kDa membrane. However, further evaluation based on fouling index and water permeability recovery favored the 15 kDa membrane, indicating better performance. To gain insights into the flux decline mechanisms and understand membrane fouling, a study was conducted on the 15 kDa and 50 kDa membranes. The analysis revealed that the cake filtration model provided the best fit for both membranes. The study highlights the potential of UF membranes, specifically the 15 kDa membrane, for the clarification of cardoon blanching wastewater. Full article
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