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Membranes
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State-of-the-Art Membrane Science and Technology in France 2021-2022
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State-of-the-Art Membrane Science and Technology in France 2021-2022

A special issue of Membranes (ISSN 2077-0375).

Deadline for manuscript submissions: closed (31 December 2022) | Viewed by 7590

Special Issue Editor

Prof. Dr. Philippe Moulin

E-Mail Website
Guest Editor
Equipe Procédés Membranaires, Laboratoire de Mécanique Modélisation et Procédés Propres (M2P2-UMR7340), Aix Marseille Université, 13545 Aix en Provence, France
Interests: industrial membrane processes; purification of water
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear colleagues,

Membranes and membrane operations have been receiving increasing interest for several decades, with significant involvements in water purification and desalination, energy production, biotechnology, healthcare and medical applications, gas separations and intensified manufacturing processes, etc.

Traditionally, research on membrane processes in France is important in the field of materials, chemical engineering, but also in industrial developments. While research and development of membrane processes create new industries and contribute significantly to national economic growth, the importance of research into membrane processes continues to grow in France. As a result, research in France appears to be one of the leaders in the world in the field of membrane science and technology, which is also today one of the fastest growing and multidisciplinary research areas in France. This Special Issue aims to highlight and promote recent advances and to bring an overview of research activities on membrane processes in France. Research topics include but are not limited to:

  • Sustainable membrane manufacture processes and advanced membrane characterization tools
  • Membranes for medical, biotechnological, and healthcare applications
  • Membrane reactors, bioreactors, and photoreactors
  • Membranes for advanced separations and high-tech applications
  • Membrane contactors: crystallizers, condensers, distillers, emulsifiers
  • Membranes and membrane operations in agro-food and (bio)pharmaceutical industry
  • Membranes for environmental remediation and mining from waste streams
  • Membranes for green chemistry applications and sustainable processes
  • Membranes for energy production from salinity gradients
  • Membranes and membrane operations for renewable hydrogen production
  • Membranes for gas separations and carbon capture and storage
  • Modeling and simulations of membrane transport and membrane-based process operation

Prof. Dr. Philippe Moulin
Guest Editor

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. Membranes 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 2700 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.

Published Papers (4 papers)

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Research

14 pages, 1510 KiB  
Article
Evaluation of Gas-to-Liquid Transfer with Ceramic Membrane Sparger for H2 and CO2 Fermentation
by Laure Deschamps, Julien Lemaire, Nabila Imatoukene, Michel Lopez and Marc-André Theoleyre
Membranes 2022, 12(12), 1220; https://doi.org/10.3390/membranes12121220 - 2 Dec 2022
Cited by 1 | Viewed by 1332
Abstract
Hydrogen and carbon dioxide fermentation to methane, called bio-methanation, is a promising way to provide renewable and easy-to-store energy. The main challenge of bio-methanation is the low gas-to-liquid transfer of hydrogen. Gas injection through a porous membrane can be used to obtain microbubbles [...] Read more.
Hydrogen and carbon dioxide fermentation to methane, called bio-methanation, is a promising way to provide renewable and easy-to-store energy. The main challenge of bio-methanation is the low gas-to-liquid transfer of hydrogen. Gas injection through a porous membrane can be used to obtain microbubbles and high gas-to-liquid transfer. However, the understanding of bubble formation using a membrane in the fermentation broth is still missing. This study focused on the impact of liquid pressure and flow rate in the membrane, gas flow rate, membrane hydrophobicity, surface, and pore size on the overall gas-to-liquid mass transfer coefficient (KLa) for hydrogen with gas injection through a porous membrane in real fermentation conditions. It has been shown that KLa increased by 13% with an increase in liquid pressure from 0.5 bar to 1.5 bar. The use of a hydrophilic membrane increased the KLa by 17% compared to the hydrophobic membrane. The membrane with a pore size of 0.1 µm produced a higher KLa value compared to 50 and 300 kDa. The liquid crossflow velocity did not impact the KLa in the studied range. Full article
(This article belongs to the Special Issue State-of-the-Art Membrane Science and Technology in France 2021-2022)
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25 pages, 7090 KiB  
Article
Membrane Separation Used as Treatment of Alkaline Wastewater from a Maritime Scrubber Unit
by Maryse Drouin, Giulia Parravicini, Samy Nasser and Philippe Moulin
Membranes 2022, 12(10), 968; https://doi.org/10.3390/membranes12100968 - 2 Oct 2022
Cited by 1 | Viewed by 1641
Abstract
Since 1 January 2020, the sulfur content allowed in exhaust gas plume generated by marine vessels decreased to 0.5% m/m. To be compliant, a hybrid scrubber was installed on-board, working in closed loop and generating a high volume of alkaline wastewater. The alkaline [...] Read more.
Since 1 January 2020, the sulfur content allowed in exhaust gas plume generated by marine vessels decreased to 0.5% m/m. To be compliant, a hybrid scrubber was installed on-board, working in closed loop and generating a high volume of alkaline wastewater. The alkaline water suspension was treated by a silicon carbide multitubular membrane to remove pollutants, and to allow the water discharge into the natural environment. In this paper, membrane filtration behavior was analyzed for the maritime scrubber wastewater. A range of operating parameters were obtained for several feedwater quality-respecting industrial constraints. The objective was an improvement of (I) the water recovery rate, (II) the filtration duration, and (III) the permeate quality. Thus, in high-fouling water, a low permeate flow (60 L h−1 m−2) with frequent backflushing (every 20 min) was used to maintain membrane performance over time. In terms of water quality, the suspended solids and heavy metals were retained at more than 99% and 90%, respectively. Other seawater discharge criteria in terms of suspended solids concentration, pH, and polyaromatic hydrocarbons were validated. The recommended operating conditions from laboratory study at semi-industrial scale were then implemented on a vessel in real navigation conditions with results in agreement with expectations. Full article
(This article belongs to the Special Issue State-of-the-Art Membrane Science and Technology in France 2021-2022)
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18 pages, 7222 KiB  
Article
Pebax-Based Composite Membranes with High Transport Properties Enhanced by ZIF-8 for CO2 Separation
by Tarik Eljaddi, Julien Bouillon, Denis Roizard and Laurent Lebrun
Membranes 2022, 12(9), 836; https://doi.org/10.3390/membranes12090836 - 27 Aug 2022
Cited by 5 | Viewed by 2062
Abstract
A series of mixed matrix membranes containing poly (ether-block-amide) Pebax 1657 as matrix and polyethylene glycol (PEG) and Zeolitic Imidazolate Framework-8 (ZIF-8) as additives, were prepared and tested for CO2 separation. The membranes were prepared by solvent evaporation method and were characterized [...] Read more.
A series of mixed matrix membranes containing poly (ether-block-amide) Pebax 1657 as matrix and polyethylene glycol (PEG) and Zeolitic Imidazolate Framework-8 (ZIF-8) as additives, were prepared and tested for CO2 separation. The membranes were prepared by solvent evaporation method and were characterized by TGA, DSC, SEM, and gas permeation measurements. The effects of PEG and its molecular weight, and the percentage of ZIF-8 into Pebax matrix were investigated. The results showed that the addition of PEG to Pebax/ZIF-8 blends avoid the agglomeration of ZIF-8 particles. A synergic effect between PEG and ZIF was particularly observed for high ZIF-8 content, because the initial permeability of pristine Pebax was multiplied by three (from 54 to 161 Barrers) while keeping the CO2 selectivity (αCO2/N2 = 61, αCO2/CH4 = 12 and αCO2/O2 = 23). Finally, the mechanism of CO2 transport is essentially governed by the solubility of CO2 into the membranes. Therefore, this new Pebax/PEG/ZIF-8 system seems to be a promising approach to develop new selective membranes for CO2 with high permeability. Full article
(This article belongs to the Special Issue State-of-the-Art Membrane Science and Technology in France 2021-2022)
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12 pages, 1318 KiB  
Article
Recovery of Water-Soluble Compounds from Tisochrysis lutea
by Robin Lina, Olivier Lepine, Pascal Jaouen and Anthony Masse
Membranes 2022, 12(8), 766; https://doi.org/10.3390/membranes12080766 - 5 Aug 2022
Viewed by 1626
Abstract
This work aims at studying the techno-economic feasibility to produce an extract, at a small industrial-production scale, from a Tisochrysis lutea’s paste, in view of cosmetic applications. The paste was first thawed, diluted and centrifuged to get a crude water extract. Then, [...] Read more.
This work aims at studying the techno-economic feasibility to produce an extract, at a small industrial-production scale, from a Tisochrysis lutea’s paste, in view of cosmetic applications. The paste was first thawed, diluted and centrifuged to get a crude water extract. Then, two successive stages of membrane filtration were carried out: the first one to essentially remove/retain the particles (cellular debris) by microfiltration and the second one to concentrate (ultrafiltration) the soluble compounds of the permeate from the previous step. The robustness of the processing chain has been demonstrated following the production of three similar extracts with more than 30 L input material each. Around 54% of the final extract was composed of proteins and carbohydrates. The final ingredient was assessed for genomic activity and showed multiple positive responses. Finally, an economic analysis was performed, which demonstrated that the major cost is linked to centrifugation step. The total manpower represents the highest cost of the OPEX categories. Full article
(This article belongs to the Special Issue State-of-the-Art Membrane Science and Technology in France 2021-2022)
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