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Processes
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Membrane Separation for Wastewater Treatment and Recycling
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Membrane Separation for Wastewater Treatment and Recycling

A special issue of Processes (ISSN 2227-9717). This special issue belongs to the section "Separation Processes".

Deadline for manuscript submissions: 31 May 2024 | Viewed by 8748

Special Issue Editors

Dr. Amilton Botelho Junior

E-Mail Website
Guest Editor
Department of Chemical Engineering, Polytechnic School, University of Sao Paulo, São Paulo 05508-080, Brazil
Interests: hydrometallurgy; separation process; electrodialysis; reverse osmosis; ultrafiltration; microfiltration; solvent extraction; recycling processes; circular economy; SDGs; net-zero emission
Special Issues, Collections and Topics in MDPI journals
Dr. Denise Crocce Romano Espinosa

E-Mail Website
Guest Editor
Department of Chemical Engineering, Polytechnic School, University of Sao Paulo, São Paulo 05508-080, Brazil
Interests: hydrometallurgy; separation process; electrodialysis; reverse osmosis; ultrafiltration; microfiltration; solvent extraction; recycling processes; circular economy; SDGs; net-zero emission
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

The use of membrane technology is well-stated for water and wastewater treatment. Recently, the search for new processes to recover chemical compounds in aqueous solutions has shed light on the potential application of techniques using membranes. It is associated with the removal of organic compounds, micropollutants, and emerging pollutants, as well as the recovery of metals from mining activities, recycling, and electroplating industries.

For instance, electrodialysis has been used successfully for wastewater treatment from the electroplating and recovery of critical and valuable metals. The use of membrane technology to separate rare earth elements has shown important results and potential for industrial application.

This Special Issue on “Membrane Separation for Wastewater Treatment and Recycling” seeks high-quality works which explore the latest novel advances in membrane technology for liquid separation. Topics include, but are not limited to, the following:

  • The separation of pollutants (such as micropollutants and microplastics, emerging drugs, and pesticides) by membranes;
  • The application of membrane technology for separation of metals from recycling and mining;
  • The treatment of wastewater from electroplating;
  • The separation of metals from industrial processes;
  • Electrodialysis.

We gladly invite you to submit your work to this Special Issue.

Dr. Amilton Barbosa Botelho Junior
Dr. Denise Crocce Romano Espinosa
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. Processes 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 2400 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

  • hydrometallurgy
  • separation process
  • electrodialysis
  • reverse osmosis
  • ultrafiltration
  • microfiltration

Published Papers (2 papers)

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Review

15 pages, 1575 KiB  
Review
Wastewater Treatment in the Dairy Industry from Classical Treatment to Promising Technologies: An Overview
by Aws N. Al-Tayawi, Elias Jigar Sisay, Sándor Beszédes and Szabolcs Kertész
Processes 2023, 11(7), 2133; https://doi.org/10.3390/pr11072133 - 17 Jul 2023
Cited by 1 | Viewed by 4006
Abstract
Water pollution caused by population growth and human activities is a critical problem exacerbated by limited freshwater resources and increasing water demands. Various sectors contribute to water pollution, with the dairy industry being a significant contributor due to the high concentrations of harmful [...] Read more.
Water pollution caused by population growth and human activities is a critical problem exacerbated by limited freshwater resources and increasing water demands. Various sectors contribute to water pollution, with the dairy industry being a significant contributor due to the high concentrations of harmful contaminants in dairy wastewater. Traditional treatment methods have been employed, but they have limitations in terms of effectiveness, cost, and environmental impact. In recent years, membrane separation technology (MST) has emerged as a promising alternative for treating dairy wastewater. Membrane processes offer efficient separation, concentration, and purification of dairy wastewater, with benefits such as reduced process steps, minimal impact on product quality, operational flexibility, and lower energy consumption. However, membrane fouling and concentration polarization present major challenges associated with this technique. Therefore, strategies have been implemented to mitigate these phenomena, including pre-treatment prior to MST, coagulation, and adsorption. Recently, 3D printing technology has gained prominence as one of the latest and most notable advancements for addressing these issues. This comprehensive review examines the drawbacks and benefits of conventional methods employed in dairy wastewater treatment and explores the utilization of membrane technology as an alternative to these approaches. Additionally, the latest technologies implemented to mitigate or alleviate the limitations of membrane technology are discussed. Full article
(This article belongs to the Special Issue Membrane Separation for Wastewater Treatment and Recycling)
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24 pages, 5526 KiB  
Review
Separation of Critical Metals by Membrane Technology under a Circular Economy Framework: A Review of the State-of-the-Art
by Amilton Barbosa Botelho Junior, Jorge Alberto Soares Tenório and Denise Crocce Romano Espinosa
Processes 2023, 11(4), 1256; https://doi.org/10.3390/pr11041256 - 19 Apr 2023
Cited by 3 | Viewed by 2850
Abstract
The demand for critical metals for net-zero technologies, including electric vehicles and wind/solar energy, puts pressure on extraction and recycling processes. As the treatment of solutions is becoming more and more complex and associated with the decreasing concentration of critical metals and the [...] Read more.
The demand for critical metals for net-zero technologies, including electric vehicles and wind/solar energy, puts pressure on extraction and recycling processes. As the treatment of solutions is becoming more and more complex and associated with the decreasing concentration of critical metals and the concentration of contaminants increasing, the development of separation techniques is required. Among them, membrane separation has been evaluated for hydrometallurgical processes with similar results to traditional techniques. This work aimed at reviewing the literature on membrane applications to obtain critical metals—lithium (Li), cobalt (Co), and rare earth elements (scandium—Sc, yttrium—Y, lanthanum—La, and neodymium—Nd). The main novelty is that this literature review focuses on the application of membrane techniques in industrial processes, not only water and wastewater treatment. For this, we searched a scientific database for different keywords, and the bibliometric analysis demonstrated a strong linkage between membrane separation and critical metals. The application of membranes to obtain critical metals from primary and secondary sources, acid mine drainage (AMD), industrial wastes, and the recycling of electronic wastes (e-wastes) and brine was revised. Among these traditional technologies, no relation was found with reverse osmosis. The outstanding use of membranes included combinations of solvent extraction techniques, including supported liquid membranes and polymer inclusion membranes. Full article
(This article belongs to the Special Issue Membrane Separation for Wastewater Treatment and Recycling)
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