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Electrochemical and Bioelectrochemical Technologies for Sustainable Water Treatment

A special issue of Water (ISSN 2073-4441). This special issue belongs to the section "Wastewater Treatment and Reuse".

Deadline for manuscript submissions: 15 October 2026 | Viewed by 1262

Editors


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Guest Editor
School of Civil Engineering, Liaocheng University, Liaocheng, China
Interests: bioelectrochemical system; wastewater treatment; membrane distillation; electrospun nanofiber membrane; smart materials

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Guest Editor

Special Issue Information

Dear Colleagues,

The growing challenges of water scarcity and environmental pollution demand innovative and sustainable solutions for water and wastewater treatment. Electrochemical and bioelectrochemical technologies have emerged as a highly promising class of advanced processes, offering distinct advantages such as high efficiency, environmental compatibility, modular design, and the potential for energy and resource recovery.

This Special Issue aims to showcase the latest fundamental and applied research in the field of electrochemical and bioelectrochemical systems for water purification, remediation, and disinfection. We seek to compile high-quality contributions that advance our understanding of the underlying mechanisms, explore novel materials and reactor configurations, and demonstrate the efficacy of these technologies in treating a wide range of contaminants.

 Topics of interest for this Special Issue include, but are not limited to, the following:

  • Electrochemical Advanced Oxidation Processes (EAOPs): Development of anodes, cathodes, and catalytic systems for the degradation of persistent organic pollutants, pharmaceuticals, and industrial contaminants.
  • Bioelectrochemical Systems (BES): Microbial fuel cells (MFCs) for simultaneous wastewater treatment and energy recovery, microbial electrolysis cells (MECs) for hydrogen or methane production, and other BES configurations for desalination or nutrient removal.
  • Resource Recovery: Technologies focused on the recovery of nutrients (e.g., nitrogen, phosphorus), valuable metals, or clean water from waste streams.
  • Sensor and Monitoring Systems: Development of (bio)electrochemical sensors for real-time water quality monitoring and process control.
  • Hybrid Systems: Integration of electrochemical technologies with other treatment processes (e.g., biological, membrane filtration, photochemical) for enhanced performance. 

Dr. Yuanfeng Liu
Prof. Dr. Andrea G. Capodaglio
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 250 words) can be sent to the Editorial Office for assessment.

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-anonymized peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Water is an international peer-reviewed open access semimonthly 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 2600 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

  • electrochemical advanced oxidation process
  • bioelectrochemical system
  • electrocoagulation/electroflotation
  • resources recovery
  • electrochemical sensing monitoring
  • system scale-up research

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Published Papers (1 paper)

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Review

26 pages, 3604 KB  
Review
Review of the Effectiveness of Current Water Treatment Technologies for PFAS Removal
by Duncan Gill and Ali El Hanandeh
Water 2026, 18(13), 1653; https://doi.org/10.3390/w18131653 - 7 Jul 2026
Viewed by 882
Abstract
PFAS form a class of synthetic chemicals that has become an area of increasing concern because of its impact on the environment and the threat it poses to human health. The structure of PFAS makes them highly resistant to degradation. As a result, [...] Read more.
PFAS form a class of synthetic chemicals that has become an area of increasing concern because of its impact on the environment and the threat it poses to human health. The structure of PFAS makes them highly resistant to degradation. As a result, they are highly effective at bioaccumulation. Certain water treatment technologies have been proven to remove PFAS from contaminated water sources. This study reviews the most promising treatment technologies used for the treatment of PFAS-contaminated waters. Well-established treatment technologies, such as granular activated carbon, ion exchange resin, reverse osmosis, and nanofiltration, were quantitatively compared. The removal efficiency was assessed by collecting the data of individual PFAS species from the literature and grouping them into five groups: PFAS (all species), PFSA, PFCA, long chain, and short chain. The results identified that, for all PFAS groups, the most effective treatment technologies were in the following order: reverse osmosis, nanofiltration, ion exchange resin, and granular activated carbon. The performance of reverse osmosis and nanofiltration did not appear to significantly differ between the different PFAS groups, as opposed to ion exchange resin and granular activated carbon, where there was a greater degree of variation in performance between different PFAS groups. Overall, it was identified that membrane technologies outperformed adsorbent technologies. However, the cost associated with membrane technologies may limit its economic viability when compared with adsorbent technologies, which are typically a more viable option except under specific circumstances. For example, contaminated water with high concentrations of other contaminants that need to be treated simultaneously. Lack of standardised experimental and operational conditions limited the available data. While this work provides guidance on which treatment is more likely to be appropriate based on the concentration and composition of different species of PFAS, more data are needed to conduct a more accurate statistical analysis and enable accurate modelling of treatment performance. Full article
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