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Molecules
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Development of Electrochemical Oxidation Processes
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Development of Electrochemical Oxidation Processes

A special issue of Molecules (ISSN 1420-3049). This special issue belongs to the section "Electrochemistry".

Deadline for manuscript submissions: closed (30 June 2019) | Viewed by 3212

Special Issue Editors

Prof. Dr. Pere L. Cabot

E-Mail Website
Guest Editor
Department of Materials Science and Physical Chemistry, Faculty of Chemistry, University of Barcelona, Martí i Franquès 1–11, 08028 Barcelona, Spain
Interests: electrochemical oxidation processes; electrocatalysts; fuel cells; electrochemical engineering; electrochemical kinetics
Prof. Dr. Enric Brillas

E-Mail Website
Guest Editor
Department of Materials Science and Physical Chemistry, Faculty of Chemistry, University of Barcelona, Barcelona, Spain
Interests: Fenton; photo-Fenton; electrochemical advanced oxidation processes; electrochemical oxidation; electro-Fenton; UV photoelectro-Fenton; solar photoelectro-Fenton; photoelectrocatalysis; water remediation; organic and inorganic pollutants removal from synthetic and actual waters and wastewaters
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Electrochemical devices have allowed one to perform selective and clean electrochemical reactions, which compete with alternative chemical processes. Focusing on anodic oxidation, stable anodes have been developed, which are key electrodes that are applied in electrochemical advanced oxidation processes. Thus, high levels of the powerful oxidizing hydroxyl radical are produced in inert electrolytes on boron-doped diamond thin film anodes (the oxidizing hydroxyl radical is the main reagent in the decontamination of urban and industrial wastewaters as well). In chlorinated matrices, other competitive powerful oxidizing agents such as active chlorine are generated. Currently, the application of novel electrodes is focused on the assessment of single and combined treatments to enhance the oxidation power of the electrochemical systems. This Special Issue is devoted to reporting and reviewing the recent advances in electrochemical oxidation processes, both in electrosynthesis and in water remediation.

Prof. Pere L. Cabot
Prof. Enric Brillas
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. Molecules 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 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

  • Anodic oxidation
  • Electrochemical advanced oxidation processes
  • Electrosynthesis
  • Photoelectrocatalysis
  • Water remediation
  • Coupled processes

Published Papers (1 paper)

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Research

13 pages, 1813 KiB  
Article
Performance of Electrochemical Processes in the Treatment of Reverse Osmosis Concentrates of Sanitary Landfill Leachate
by Annabel Fernandes, Oumaima Chamem, Maria José Pacheco, Lurdes Ciríaco, Moncef Zairi and Ana Lopes
Molecules 2019, 24(16), 2905; https://doi.org/10.3390/molecules24162905 - 10 Aug 2019
Cited by 26 | Viewed by 2821
Abstract
Electrochemical technologies have been broadly applied in wastewaters treatment, but few studies have focused on comparing the performance of the different electrochemical processes, especially when used to treat highly-polluted streams. The electrochemical treatment of a reverse osmosis concentrate of sanitary landfill leachate was [...] Read more.
Electrochemical technologies have been broadly applied in wastewaters treatment, but few studies have focused on comparing the performance of the different electrochemical processes, especially when used to treat highly-polluted streams. The electrochemical treatment of a reverse osmosis concentrate of sanitary landfill leachate was performed by means of electrocoagulation (EC), anodic oxidation (AO) and electro-Fenton (EF) processes, and the use of different electrode materials and experimental conditions was assessed. All the studied processes and experimental conditions were effective in organic load removal. The results obtained showed that EC, with stainless steel electrodes, is the cheapest process, although it presents the disadvantage of sludge formation with high iron content. At high applied current intensity, AO presents the best treatment time/energy consumption ratio, especially if the samples’ initial pH is corrected to 3. However, pH correction from natural to 3 deeply decreases nitrogen-containing compounds’ removal. For longer treatment time, the EF process with a carbon-felt cathode and a BDD anode, performed at natural iron content and low applied current intensity, is the most favorable solution. Full article
(This article belongs to the Special Issue Development of Electrochemical Oxidation Processes)
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