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Separations
Special Issues
Applications of Electrochemistry in Water and Wastewater Treatment
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Applications of Electrochemistry in Water and Wastewater Treatment

A special issue of Separations (ISSN 2297-8739). This special issue belongs to the section "Environmental Separations".

Deadline for manuscript submissions: closed (20 June 2024) | Viewed by 1670

Special Issue Editor

Prof. Dr. Shaoping Tong

E-Mail Website
Guest Editor
College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, China
Interests: clean oxidation; electrolysis; ozonation; Fenton-like agent; water treatment

Special Issue Information

Dear Colleagues,

This Special Issue presents recent progress in electrochemical water treatment technology, which includes the (1) preparation of novel anodic materials with a long lifetime and high performance in the oxidation of organics in water; (2) preparation of novel cathodic materials for the effective dehalogenation of an organic halide to reduce its toxicity; (3) fabrication of high-performance air cathode for the effective generation of hydrogen peroxide, and thus promoting the progress of electrochemical Fenton technology; (4) preparation of long-life large anode materials and their applications in the treatment of very-high-salinity wastewater; (5) novel electrochemical reactors with high treatment efficiency in the treatment of water; (6) exploitation of new electrochemical method combined processes with high efficiency in water treatment; (7) results of any industrial (or pilot)-scale electrochemical water treatment. Contributions related to these topics or related ones are welcome.

Prof. Dr. Shaoping Tong
Guest Editor

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. Separations 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 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

  • new electrode material
  • practical large anode
  • dehalogenation
  • electrochemical reactor with high performance
  • electrolysis combined processes

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Published Papers (2 papers)

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Research

11 pages, 1956 KiB  
Article
The Removal of Organic Contaminants from Condensed Wastewater Using Electrolysis Combined with Ozonation: A Pilot-Scale Study
by Yalei Ding, Jie Wang and Bin Tan
Separations 2024, 11(10), 281; https://doi.org/10.3390/separations11100281 - 29 Sep 2024
Viewed by 454
Abstract
A pilot-scale investigation of ozonation combined with electrolysis (E-O3) was performed to treat concentrated wastewater from a reverse osmosis system from the printing and dyeing industry. It was found that E-O3 only exhibits an efficiency advantage after the removal of [...] Read more.
A pilot-scale investigation of ozonation combined with electrolysis (E-O3) was performed to treat concentrated wastewater from a reverse osmosis system from the printing and dyeing industry. It was found that E-O3 only exhibits an efficiency advantage after the removal of carbonate ions. The synergy of ozone and electrolysis lies not only in the generation of hydroxyl radicals, but also in the degradation of organic compounds. Moreover, the combination of electrolysis and ozonation has an inhibitory effect on the decrease in pH, which plays an important role in the synergistic generation of hydroxyl radicals. This pilot-scale study holds reference significance for the engineering applications of the E-O3 technology. Full article
(This article belongs to the Special Issue Applications of Electrochemistry in Water and Wastewater Treatment)
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16 pages, 4845 KiB  
Article
Degradation of Levofloxacin by Electroactivated Sodium Persulfate on Carbon Cloth Cathode Modified with Cerium-Based Metal Organic Frameworks (Ce-MOF) Derivatives
by Xinbiao Mao, Mingyu Ou, Wenjun Zhao, Shuangting Yu and Hao Xu
Separations 2024, 11(5), 144; https://doi.org/10.3390/separations11050144 - 7 May 2024
Viewed by 965
Abstract
Levofloxacin (LFX), which is difficult to degrade effectively due to its molecular stability, has become an problem that needs to be solved urgently. The advanced oxidation technology of persulfate has received increasing attention from researchers. In this study, a Ce-MOF derivative (Ce-MOF-T) was [...] Read more.
Levofloxacin (LFX), which is difficult to degrade effectively due to its molecular stability, has become an problem that needs to be solved urgently. The advanced oxidation technology of persulfate has received increasing attention from researchers. In this study, a Ce-MOF derivative (Ce-MOF-T) was prepared by hydrothermal synthesis and calcination, which synergistically responded to electroactivation to generate sulfate radicals for the efficient degradation of LFX. It has been proven that electrical activation and the Ce-MOF derivatives work together to generate sulfate radicals and effectively degrade LFX. Ce-MOF-550-modified carbon cloth was used as the cathode and a platinum electrode as the anode, the concentration of LFX was 20 mg·L−1, the loading of Ce-MOF-550 was 15 mg, pH = 5, the concentration of sodium persulfate (PMS) was 0.3 g·L−1, the current density was 100 A·m−2, and the degradation rate was 82.05% after 1 h of reaction and 95% after 3 h of reaction. After five cycle tests, the degradation rate was still higher than 75.00%, indicating that the material had good stability. In addition, the degradation of LFX was consistent with a quasi-primary kinetic reaction with apparent rate constants of 2.26 × 10−2 min−1. Full article
(This article belongs to the Special Issue Applications of Electrochemistry in Water and Wastewater Treatment)
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