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Polymeric Membrane Innovations in Membrane Bioreactor Applications

A special issue of Materials (ISSN 1996-1944). This special issue belongs to the section "Thin Films and Interfaces".

Deadline for manuscript submissions: 10 September 2026 | Viewed by 1035

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Faculty of Chemical Technology and Engineering, Bydgoszcz University of Science and Technology, 3 Seminaryjna Street, 85-326 Bydgoszcz, Poland
Interests: membrane technologies; biotechnology; bioprocess engineering
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Special Issue Information

Dear Colleagues,

Membrane bioreactors (MBRs) integrate biological and membrane separation processes, and MBR technology has recently gained considerable attention, particularly regarding its application for the treatment of municipal and domestic wastewater, as well as the production of value-added products.

Polymeric membranes, also known as organic membranes, are the primary choice of memranes for use in MBR technology. This is because they offer several advantages, such as great manufacturability, low cost for large-scale manufacturing, high flexibility, good selectivity, easy processability, and low energy requirements  The most commonly used organic membranes are those fabricated from polyvinylidene fluoride (PVDF), polyethersulfone (PES), and polypropylene (PE).

The primary aim of this Special Issue is to highlight the application of polymeric membranes in MBR technology.

I invite authors to submit high-quality original research and review articles that explore, but are not limited to, the following themes:

  • Effectiveness and applications of MBRs;
  • Applications of polymeric membranes;
  • Configurations of MBRs;
  • Fouling phenomenon in MBRs;
  • Polymeric-membrane cleaning.

Dr. Wirginia Tomczak
Guest Editor

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Keywords

  • polymeric membranes
  • membrane bioreactor
  • microfiltration
  • ultrafiltration
  • fouling
  • fermentation
  • separation
  • bioconversion

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Published Papers (1 paper)

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Research

14 pages, 3582 KB  
Article
Fermentative Production of 1,3-Propanediol from Glycerol in a Membrane Bioreactor with Microfiltration Membranes: A Feasibility Study
by Wirginia Tomczak and Marek Gryta
Materials 2026, 19(5), 865; https://doi.org/10.3390/ma19050865 - 26 Feb 2026
Viewed by 639
Abstract
In biotechnological processes, value-added products such as 1,3-propanediol (1,3-PD) are obtained in multi-component mixtures consisting of by-products, nutrient medium, bacterial cells and residual substrate. For this reason, separation to obtain the main product with the use of various techniques is economically unprofitable. Contrary, [...] Read more.
In biotechnological processes, value-added products such as 1,3-propanediol (1,3-PD) are obtained in multi-component mixtures consisting of by-products, nutrient medium, bacterial cells and residual substrate. For this reason, separation to obtain the main product with the use of various techniques is economically unprofitable. Contrary, membrane bioreactors (MBRs) ensure several benefits and may play a crucial role in reducing the operating costs. The main objective of this work was to evaluate the feasibility of producing 1,3-PD in an MBR equipped with capillary polypropylene (PP) membranes for the MF (microfiltration) process. This article provides an in-depth examination of: (i) the yield of batch, fed-batch and fermentation in an MBR, (ii) the fouling mechanism during MF of fermentation broths, and (iii) PP membrane stability. It was found that performing the fermentation in an MBR allowed for production of 1,3-PD with the highest maximum yield, in the range of 0.48 g/g (0.58 mol/mol) to 0.59 g/g (0.72 mol/mol). Moreover, it was demonstrated that the significant decline of the MF process was mainly caused by the formation of a cake layer on the membrane surface. Nevertheless, the efficiency of the process was stable and ensured the high quality of the permeate. In addition, membrane cleaning with the use of 1% NaOH solution allowed to remove most of the foulants from the membrane surface. Despite repeated cleaning procedures, the membranes used in this work maintained their performance and efficiency. Hence, it can be concluded that the capillary polypropylene membranes for the MF process can be successfully used in MBR technology intended for the production of 1,3-PD by glycerol fermentation. Full article
(This article belongs to the Special Issue Polymeric Membrane Innovations in Membrane Bioreactor Applications)
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