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A review on the photoelectro-Fenton process as efficient electrochemical advanced oxidation for wastewater remediation. Treatment with UV light, sunlight, and coupling with conventional and other photo-assisted advanced technologies.
Chemosphere. 2020 Jul; 250:126198.C

Abstract

Wastewaters containing recalcitrant and toxic organic pollutants are scarcely decontaminated in conventional wastewater facilities. Then, there is an urgent challenge the development of powerful oxidation processes to ensure their organic removal in order to preserve the water quality in the environment. This review presents the recent development of an electrochemical advanced oxidation process (EAOP) like the photoelectro-Fenton (PEF) process, covering the period 2010-2019, as an effective treatment for wastewater remediation. The high oxidation ability of this photo-assisted Fenton-based EAOP is due to the combination of in situ generated hydroxyl radicals and the photolytic action of UV or sunlight irradiation over the treated wastewater. Firstly, the fundamentals and characteristics of the PEF process are described to understand the role of oxidizing agents. Further, the properties of the homogeneous PEF process with iron catalyst and UV irradiation and the benefit of sunlight in the homogeneous solar PEF one (SPEF) are discussed, supported with examples over their application to the degradation and mineralization of synthetic solutions of industrial chemicals, herbicides, dyes and pharmaceuticals, as well as real wastewaters. Novel heterogeneous PEF processes involving solid iron catalysts or iron-modified cathodes are subsequently detailed. Finally, the oxidation power of hybrid processes including photocatalysis/PEF, solar photocatalysis/SPEF, photoelectrocatalysis/PEF and solar photoelectrocatalysis/SPEF, followed by that of sequential processes like electrocoagulation/PEF and biological oxidation coupled to SPEF, are analyzed.

Authors+Show Affiliations

Laboratori d'Electroquímica dels Materials i del Medi Ambient, Departament de Química Física, Facultat de Química, Universitat de Barcelona, Martí i Franquès 1-11, 08028, Barcelona, Spain. Electronic address: brillas@ub.edu.

Pub Type(s)

Journal Article
Review

Language

eng

PubMed ID

32105855

Citation

Brillas, Enric. "A Review On the photoelectro-Fenton Process as Efficient Electrochemical Advanced Oxidation for Wastewater Remediation. Treatment With UV Light, Sunlight, and Coupling With Conventional and Other Photo-assisted Advanced Technologies." Chemosphere, vol. 250, 2020, p. 126198.
Brillas E. A review on the photoelectro-Fenton process as efficient electrochemical advanced oxidation for wastewater remediation. Treatment with UV light, sunlight, and coupling with conventional and other photo-assisted advanced technologies. Chemosphere. 2020;250:126198.
Brillas, E. (2020). A review on the photoelectro-Fenton process as efficient electrochemical advanced oxidation for wastewater remediation. Treatment with UV light, sunlight, and coupling with conventional and other photo-assisted advanced technologies. Chemosphere, 250, 126198. https://doi.org/10.1016/j.chemosphere.2020.126198
Brillas E. A Review On the photoelectro-Fenton Process as Efficient Electrochemical Advanced Oxidation for Wastewater Remediation. Treatment With UV Light, Sunlight, and Coupling With Conventional and Other Photo-assisted Advanced Technologies. Chemosphere. 2020;250:126198. PubMed PMID: 32105855.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - A review on the photoelectro-Fenton process as efficient electrochemical advanced oxidation for wastewater remediation. Treatment with UV light, sunlight, and coupling with conventional and other photo-assisted advanced technologies. A1 - Brillas,Enric, Y1 - 2020/02/17/ PY - 2020/01/04/received PY - 2020/02/08/revised PY - 2020/02/11/accepted PY - 2020/2/28/pubmed PY - 2020/5/19/medline PY - 2020/2/28/entrez KW - Environmental advanced oxidation process KW - Heterogeneous photoelectro-Fenton KW - Homogeneous photoelectro-Fenton KW - Homogeneous solar photoelectro-Fenton KW - Photocatalysis/photoelectro-Fenton KW - Photoelectrocatalysis/photoelectro-Fenton SP - 126198 EP - 126198 JF - Chemosphere JO - Chemosphere VL - 250 N2 - Wastewaters containing recalcitrant and toxic organic pollutants are scarcely decontaminated in conventional wastewater facilities. Then, there is an urgent challenge the development of powerful oxidation processes to ensure their organic removal in order to preserve the water quality in the environment. This review presents the recent development of an electrochemical advanced oxidation process (EAOP) like the photoelectro-Fenton (PEF) process, covering the period 2010-2019, as an effective treatment for wastewater remediation. The high oxidation ability of this photo-assisted Fenton-based EAOP is due to the combination of in situ generated hydroxyl radicals and the photolytic action of UV or sunlight irradiation over the treated wastewater. Firstly, the fundamentals and characteristics of the PEF process are described to understand the role of oxidizing agents. Further, the properties of the homogeneous PEF process with iron catalyst and UV irradiation and the benefit of sunlight in the homogeneous solar PEF one (SPEF) are discussed, supported with examples over their application to the degradation and mineralization of synthetic solutions of industrial chemicals, herbicides, dyes and pharmaceuticals, as well as real wastewaters. Novel heterogeneous PEF processes involving solid iron catalysts or iron-modified cathodes are subsequently detailed. Finally, the oxidation power of hybrid processes including photocatalysis/PEF, solar photocatalysis/SPEF, photoelectrocatalysis/PEF and solar photoelectrocatalysis/SPEF, followed by that of sequential processes like electrocoagulation/PEF and biological oxidation coupled to SPEF, are analyzed. SN - 1879-1298 UR - https://www.unboundmedicine.com/medline/citation/32105855/A_review_on_the_photoelectro_Fenton_process_as_efficient_electrochemical_advanced_oxidation_for_wastewater_remediation__Treatment_with_UV_light_sunlight_and_coupling_with_conventional_and_other_photo_assisted_advanced_technologies_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0045-6535(20)30391-X DB - PRIME DP - Unbound Medicine ER -