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Membranes
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Advances in Integrated Membrane Processes and Systems
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Advances in Integrated Membrane Processes and Systems

A special issue of Membranes (ISSN 2077-0375). This special issue belongs to the section "Membrane Processing and Engineering".

Deadline for manuscript submissions: closed (31 May 2023) | Viewed by 4654

Special Issue Editors

Dr. Rosalinda Mazzei

E-Mail Website
Guest Editor
Institute on Membrane Technology, National Research Council, ITM-CNR, 87036 Rende, Italy
Interests: membrane biochemistry; biocatalytic membranes; enzymatic membrane reactor; biocatalytic mebrane reactor
Special Issues, Collections and Topics in MDPI journals
Dr. Emma Piacentini

E-Mail Website
Guest Editor
Institute on Membrane Technology, National Research Council, ITM-CNR Via P. Bucci 17/C, 87036 Rende, CS, Italy
Interests: advanced particulate manufacturing by membrane technology; development of high-performing and ecosustainable emulsification processes using microporous membranes; formulation of emulsions and capsules via membrane emulsification; nanoparticle production using membrane nanoprecipitation methods; structured particle production for drug delivery and biocatalysis; microencapsulation of bioactive compounds
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

The use of integrated membrane processes is rapidly increasing in various industries where selective separation and/or purification is needed. A new and very interesting combination is the coupling of traditional membrane separation processes (microfiltration, ultrafiltration, etc.) with emerging membrane technologies such as biocatalytic membrane reactors, membrane emulsification, reverse osmosis, etc., promoting the use of integrated membrane processes in non-conventional applications (e.g., biorefinery) where catalysis, formulation, extraction, dehydration are required in addition to separation. This Special Issue is intended to provide innovative examples of integrated membrane processes in various sectors.

In this Special Issue, original research articles and reviews are welcome.

We look forward to receiving your contributions.

Dr. Rosalinda Mazzei
Dr. Emma Piacentini
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. 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.

Keywords

  • innovative integrated membrane processes
  • new intensified and/or integrated membrane systems

Published Papers (3 papers)

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Research

19 pages, 4603 KiB  
Article
Role of Titanium Dioxide-Immobilized PES Beads in a Combined Water Treatment System of Tubular Alumina Microfiltration and PES Beads
by Sungtaek Hong, Sungwoo Park and Jin Yong Park
Membranes 2023, 13(9), 757; https://doi.org/10.3390/membranes13090757 - 25 Aug 2023
Viewed by 669
Abstract
The membrane process has a limit to the decay of various pollutants in water. To improve the problem, the roles of backwashing media and titanium dioxide (TiO2) photocatalyst-immobilized-polyethersulfone (PES) beads’ concentration were investigated in a combined system of tubular alumina MF [...] Read more.
The membrane process has a limit to the decay of various pollutants in water. To improve the problem, the roles of backwashing media and titanium dioxide (TiO2) photocatalyst-immobilized-polyethersulfone (PES) beads’ concentration were investigated in a combined system of tubular alumina MF and the PES beads for advanced drinking water treatment. The space between the outside of the MF membrane and the module inside was filled with the PES beads. UV at a wavelength of 352 nm was irradiated from outside of the acryl module. A quantity of humic acid and kaolin was dissolved in distilled water for synthetic water. Water or air intermittent backwashing was performed outside to inside. The membrane fouling resistance after 3 h process (Rf,180) was minimum at 30 g/L of the PES beads for water backwashing, and at 40 g/L for air backwashing when increasing the PES beads from 0 to 50 g/L. The irreversible membrane fouling resistance after physical cleaning (Rif) was at the bottom at 5 g/L of the PES beads for water backwashing, which was 3.43 times higher than minimal at 40 g/L of the PES beads for air backwashing. The treatment effectiveness of turbidity increased when increasing the PES beads’ concentration from 0 to 50 g/L; however, it reached a maximum at 98.1% at 40 g/L and 99.2% at 50 g/L for water and air backwashing, respectively. The treatment effectiveness of UV254 absorbance, which was dissolved organic matter (DOM), increased dramatically when increasing the PES beads; however, it reached a peak of 83.0% at 40 g/L and 86.0% at 50 g/L for water and air backwashing, respectively. Finally, the best PES beads’ concentration was 20~30 g/L to minimize the membrane fouling; however, it was 50 g/L to remove pollutants effectively. The water backwashing was better than the air at treating DOM; however, the air backwashing was more effective than the water at removing turbid matter and reducing membrane fouling. Full article
(This article belongs to the Special Issue Advances in Integrated Membrane Processes and Systems)
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15 pages, 4308 KiB  
Article
Experimental Performance of a Membrane Desorber with a H2O/LiCl Mixture for Absorption Chiller Applications
by Jonathan Ibarra-Bahena, Ulises Dehesa-Carrasco, Yuridiana Rocio Galindo-Luna, Iván Leonardo Medina-Caballero and Wilfrido Rivera
Membranes 2022, 12(12), 1184; https://doi.org/10.3390/membranes12121184 - 24 Nov 2022
Cited by 2 | Viewed by 1122
Abstract
For absorption cooling cycles using water as a refrigerant, H2O/LiCl mixtures are suitable for replacing conventional H2O/LiBr mixtures. In addition, membrane devices can be used to develop compact and lighter absorption systems, and they can operate with H2 [...] Read more.
For absorption cooling cycles using water as a refrigerant, H2O/LiCl mixtures are suitable for replacing conventional H2O/LiBr mixtures. In addition, membrane devices can be used to develop compact and lighter absorption systems, and they can operate with H2O/LiCl mixtures. The present paper describes an experimental evaluation of a membrane desorber/condenser operating at atmospheric pressure. Two operation modes were analyzed: continuous cycle operation and intermittent operation. For the first operation mode, the maximum desorption rate was 3.49 kg/h·m2, with a solution temperature of 90.3 °C and a condensation temperature of 25.1 °C. The lowest desorption rate value was 0.26 kg/h·m2, with a solution temperature of 75.4 °C and a condensation temperature of 40.1 °C. In the second mode, after three operating hours, the refrigerant fluid produced, per 1 m2 of membrane area, 7.7, 5.6, 4.3, and 2.2 kg, at solution temperatures of 90.3, 85.3, 80.4, and 75.4 °C, respectively. A one-dimension heat and mass transfer model is presented. The calculated values of desorption rate and outlet temperatures were compared with the experimental data; a square correlation coefficient of 0.9929 was reached for the desorption rate; meanwhile, for the outlet solution temperatures and the outlet cooling-water temperatures, a square correlation coefficient up to 0.9991 was achieved. The membrane desorber has the advantages of operating at atmospheric-pressure conditions, high condensation temperature, the ability to use different saline solution working mixtures, and different operation methods. These advantages can lead to new absorption systems. Full article
(This article belongs to the Special Issue Advances in Integrated Membrane Processes and Systems)
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13 pages, 2594 KiB  
Article
Biorefinery of Tomato Leaves by Integrated Extraction and Membrane Processes to Obtain Fractions That Enhance Induced Resistance against Pseudomonas syringae Infection
by Fabio Bazzarelli, Rosalinda Mazzei, Emmanouil Papaioannou, Vasileios Giannakopoulos, Michael R. Roberts and Lidietta Giorno
Membranes 2022, 12(6), 585; https://doi.org/10.3390/membranes12060585 - 31 May 2022
Cited by 2 | Viewed by 2005
Abstract
Tomato leaves have been shown to contain significant amounts of important metabolites involved in protection against abiotic and biotic stress and/or possessing important therapeutic properties. In this work, a systematic study was carried out to evaluate the potential of a sustainable process for [...] Read more.
Tomato leaves have been shown to contain significant amounts of important metabolites involved in protection against abiotic and biotic stress and/or possessing important therapeutic properties. In this work, a systematic study was carried out to evaluate the potential of a sustainable process for the fractionation of major biomolecules from tomato leaves, by combining aqueous extraction and membrane processes. The extraction parameters (temperature, pH, and liquid/solid ratio (L/S)) were optimized to obtain high amounts of biomolecules (proteins, carbohydrates, biophenols). Subsequently, the aqueous extract was processed by membrane processes, using 30–50 kDa and 1–5 kDa membranes for the first and second stage, respectively. The permeate from the first stage, which was used to remove proteins from the aqueous extract, was further fractionated in the second stage, where the appropriate membrane material was also selected. Of all the membranes tested in the first stage, regenerated cellulose membranes (RC) showed the best performance in terms of higher rejection of proteins (85%) and lower fouling index (less than 15% compared to 80% of the other membranes tested), indicating that they are suitable for fractionation of proteins from biophenols and carbohydrates. In the second stage, the best results were obtained by using polyethersulfone (PES) membranes with an NMWCO of 5 kDa, since the greatest difference between the rejection coefficients of carbohydrates and phenolic compounds was obtained. In vivo bioactivity tests confirmed that fractions obtained with PES 5 kDa membranes were able to induce plant defense against P. syringae. Full article
(This article belongs to the Special Issue Advances in Integrated Membrane Processes and Systems)
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