Separation of Emerging Pollutants Based on Membranes

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

Deadline for manuscript submissions: closed (30 April 2023) | Viewed by 1322

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National Research Council Institute on Membrane Technology (ITM-CNR), c/o University of Calabria, Cubo 17C, 87036 Rende, Italy
Interests: membrane science and engineering; membranes in artificial organs; integrated membrane processes; membrane preparation and transport phenomena in membranes; membrane distillation and membrane contactors; catalytic membrane and catalytic membrane reactors; desalination of brackish and saline water; salinity-gradient energy fuel cells
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Guest Editor
Institute on Membrane Technology (ITM-CNR), 87036 Rende, Italy
Interests: membrane processes for desalination and wastewater treatment; membrane contactors; membrane distillation; membrane crystallization; membrane condenser; membrane-transport phenomena
Special Issues, Collections and Topics in MDPI journals

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Guest Editor
Institute on Membrane Technology (ITM-CNR), 87036 Rende, Italy
Interests: nanomaterials; plasmonic phenomena; membrane distillation; membrane crystallization

Special Issue Information

Dear Colleagues,

The availability of drinking water has become a global problem due to sudden climate change and the continuous growth of water demand that is not balanced by adequate recharging. Furthermore, more and more often, water sources suffer a deterioration in their quality due to the indiscriminate discharge of wastewater without adequate treatment. Another important and emerging issue is the removal of newly identified contaminants identified in waterways (e.g., disinfection by-products, pharmaceutical compounds, microplastic and different ions originating from electronics products), which often end up in landfills, thus, contaminating land, water and air.

In this global situation, solutions, such as water transfer or dam construction, are not enough to meet the growing demand for water and the decreasing supply. A possible route to more sustainable freshwater production is offered by Membrane Engineering. In fact, it is well-recognized that membrane processes efficiently accomplish the selective separation of specific components and provide reliable options for a sustainable wastewater treatment. Membrane operations provide unprecedented opportunities for improving water quality at a high recovery factor, approaching the concept of “zero-liquid-discharge” and “low energy consumption”.

Original research and review papers are welcome and topics of interest include, but are not limited to:

  • Innovative membranes and membrane operations for seawater and wastewater treatment;
  • New membrane materials and advanced membrane-characterization tools;
  • Modelling and simulations of membrane transport and membrane-based processes;
  • Exergy analysis and economic evaluation of membrane processes.

Prof. Dr. Enrico Drioli
Prof. Dr. Francesca Macedonio
Dr. Francesca Alessandro
Guest Editors

Manuscript Submission Information

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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

  • organic and inorganic compounds
  • innovative membrane materials
  • advanced membrane processes
  • modeling and simulation
  • energy and exergy analyses
  • techinc and economic evaluations

Published Papers (1 paper)

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Research

14 pages, 3775 KiB  
Article
Advanced Oxidation Processes Coupled to Nanofiltration Membranes with Catalytic Fe0 Nanoparticles in Symmetric and Asymmetric Polyelectrolyte Multilayers
by Tao Wang, Enrique Serra Bachs, Joris de Grooth and Wiebe M. de Vos
Membranes 2023, 13(4), 388; https://doi.org/10.3390/membranes13040388 - 28 Mar 2023
Viewed by 883
Abstract
The in situ synthesis of Fe0 particles using poly-(acrylic acid) (PAA) is an effective tool for fabricating catalytic membranes relevant to advanced oxidation processes (AOPs). Through their synthesis in polyelectrolyte multilayer-based nanofiltration membranes, it becomes possible to reject and degrade organic micropollutants [...] Read more.
The in situ synthesis of Fe0 particles using poly-(acrylic acid) (PAA) is an effective tool for fabricating catalytic membranes relevant to advanced oxidation processes (AOPs). Through their synthesis in polyelectrolyte multilayer-based nanofiltration membranes, it becomes possible to reject and degrade organic micropollutants simultaneously. In this work, we compare two approaches, where Fe0 nanoparticles are synthesized in or on symmetric multilayers and asymmetric multilayers. For the membrane with symmetric multilayers (4.0 bilayers of poly (diallyldimethylammonium chloride) (PDADMAC)/PAA), the in situ synthesized Fe0 increased its permeability from 1.77 L/m2/h/bar to 17.67 L/m2/h/bar when three Fe2+ binding/reducing cycles were conducted. Likely, the low chemical stability of this polyelectrolyte multilayer allows it to become damaged through the relatively harsh synthesis. However, when the in situ synthesis of Fe0 was performed on top of asymmetric multilayers, which consist of 7.0 bilayers of the very chemically stable combination of PDADMAC and poly(styrene sulfonate) (PSS), coated with PDADMAC/PAA multilayers, the negative effect of the Fe0 in situ synthesized can be mitigated, and the permeability only increased from 1.96 L/m2/h/bar to 2.38 L/m2/h/bar with three Fe2+ binding/reducing cycles. The obtained membranes with asymmetric polyelectrolyte multilayers exhibited an excellent naproxen treatment efficiency, with over 80% naproxen rejection on the permeate side and 25% naproxen removal on the feed solution side after 1 h. This work demonstrates the potential of especially asymmetric polyelectrolyte multilayers to be effectively combined with AOPs for the treatment of micropollutants (MPs). Full article
(This article belongs to the Special Issue Separation of Emerging Pollutants Based on Membranes)
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