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Deng F, Jiang J, Sirés I. State-of-the-art review and bibliometric analysis on electro-Fenton process. CARBON LETTERS 2023; 33. [PMCID: PMC9594000 DOI: 10.1007/s42823-022-00420-z] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2022] [Revised: 10/01/2022] [Accepted: 10/03/2022] [Indexed: 06/04/2023]
Abstract
The electro-Fenton (EF) process was first proposed in 1996 and, since then, considerable development has been achieved for its application in wastewater treatment, especially at lab and pilot scale. After more than 25 years, the high efficiency, versatility and environmental compatibility of EF process has been demonstrated. In this review, bibliometrics has been adopted as a tool that allows quantifying the development of EF as well as introducing some useful correlations. As a result, information is summarized in a more visual manner that can be easily analyzed and interpreted as compared to conventional reviewing. During the recent decades under review, 83 countries have contributed to the dramatic growth of EF publications, with China, Spain and France leading the publication output. The top 12 most cited articles, along with the top 32 most productive authors in the EF field, have been screened. Four stages have been identified as main descriptors of the development of EF throughout these years, being each stage characterized by relevant breakthroughs. To conclude, a general cognitive model for the EF process is proposed, including atomic, microscopic and macroscopic views, and future perspectives are discussed.
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Affiliation(s)
- Fengxia Deng
- State Key Laboratory of Urban Water Resources and Environment, School of Environment, Harbin Institute of Technology, Harbin, 150090 People’s Republic of China
- Laboratori d’Electroquímica dels Materials i del Medi Ambient, Departament de Ciència de Materials i Química Física, Secció de Química Física, Facultat de Química, Universitat de Barcelona, Martí i Franquès 1-11, 08028 Barcelona, Spain
| | - Jizhou Jiang
- School of Environmental Ecology and Biological Engineering, Wuhan Institute of Technology, Wuhan, 430205 People’s Republic of China
| | - Ignasi Sirés
- Laboratori d’Electroquímica dels Materials i del Medi Ambient, Departament de Ciència de Materials i Química Física, Secció de Química Física, Facultat de Química, Universitat de Barcelona, Martí i Franquès 1-11, 08028 Barcelona, Spain
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Review: Clay-Modified Electrodes in Heterogeneous Electro-Fenton Process for Degradation of Organic Compounds: The Potential of Structural Fe(III) as Catalytic Sites. MATERIALS 2021; 14:ma14247742. [PMID: 34947335 PMCID: PMC8703352 DOI: 10.3390/ma14247742] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Revised: 12/06/2021] [Accepted: 12/10/2021] [Indexed: 11/17/2022]
Abstract
Advanced oxidation processes are considered as a promising technology for the removal of persistent organic pollutants from industrial wastewaters. In particular, the heterogeneous electro-Fenton (HEF) process has several advantages such as allowing the working pH to be circumneutral or alkaline, recovering and reusing the catalyst and avoiding the release of iron in the environment as a secondary pollutant. Among different iron-containing catalysts, studies using clay-modified electrodes in HEF process are the focus in this review. Fe(III)/Fe(II) within the lattice of clay minerals can possibly serve as catalytic sites in HEF process. The description of the preparation and application of clay-modified electrodes in the degradation of model pollutants in HEF process is detailed in the review. The absence of mediators responsible for transferring electrons to structural Fe(III) and regenerating catalytic Fe(II) was considered as a milestone in the field. A comprehensive review of studies investigating the use of electron transfer mediators as well as the mechanism behind electron transfer from and to the clay mineral structure was assembled in order to uncover other milestones to be addressed in this study area.
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Bury NA, Mumford KA, Stevens GW. The electro-Fenton regeneration of Granular Activated Carbons: Degradation of organic contaminants and the relationship to the carbon surface. JOURNAL OF HAZARDOUS MATERIALS 2021; 416:125792. [PMID: 33878650 DOI: 10.1016/j.jhazmat.2021.125792] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/20/2021] [Revised: 03/20/2021] [Accepted: 03/27/2021] [Indexed: 06/12/2023]
Abstract
Electrochemical regeneration of Granular Activated Carbon is an emerging treatment option to restore adsorption capacity in systems designed to remove organic contaminants from aqueous solutions. The electro-Fenton process is one such electrochemical process and it is reviewed along with other members of its family including Photoelectro-Fenton and Heterogeneous electro-Fenton and electro-Fenton like reactions, for its ability to regenerate Granular Activated Carbons contaminated with organics. The behaviour of critical operating parameter such as pH, current, catalyst concentration and initial contaminant concentration are reviewed to find optimal operating conditions. The relationship between electro-Fenton regeneration and the chemical and physical surface of the carbon is also explored. Understanding regeneration mechanisms and the optimal operating conditions enables these technologies to be used commercially and to be scaled-up and treat contaminated waters more efficiently.
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Affiliation(s)
- Naomi A Bury
- Department of Chemical Engineering, The University of Melbourne, Parkville, VIC 3010, Australia
| | - Kathryn A Mumford
- Department of Chemical Engineering, The University of Melbourne, Parkville, VIC 3010, Australia.
| | - Geoffrey W Stevens
- Department of Chemical Engineering, The University of Melbourne, Parkville, VIC 3010, Australia
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Poza-Nogueiras V, Moratalla Á, Pazos M, Sanromán Á, Sáez C, Rodrigo MA. Towards a more realistic heterogeneous electro-Fenton. J Electroanal Chem (Lausanne) 2021. [DOI: 10.1016/j.jelechem.2021.115475] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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Lu M. Advanced treatment of aged landfill leachate through the combination of aged-refuse bioreactor and three-dimensional electrode electro-Fenton process. ENVIRONMENTAL TECHNOLOGY 2021; 42:1669-1678. [PMID: 31590611 DOI: 10.1080/09593330.2019.1677781] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2019] [Accepted: 10/01/2019] [Indexed: 06/10/2023]
Abstract
A combined process of the aged-refuse bioreactor (ARB)/three-dimensional electrode electro-Fenton (3D-EF) system was developed at lab-scale to treat aged landfill leachate. The optimum operating conditions were found to be 15 L/m3•d hydraulic loading rate for ARB; Fe2+ concentration 1.0 mM, initial pH 3.0, current density 30 mA/cm2 and electrode distance 6 cm for 3D-EF. Under these conditions, the total removal ratios of chemical oxygen demand, NH3-N, total phosphorus and colour were 96.2%, 94.3%, 99.2% and 93.6%, respectively. The microtoxicity of the leachate was substantially reduced after undergoing the hybrid treatment. The ARB process removed a considerable proportion of organic matter, while the 3D-EF system played an important role in removing the residue of recalcitrant substances and post-polish of final effluent. The combined process showed a promising potential for treatment of aged landfill leachate.
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Affiliation(s)
- Mang Lu
- Department of Chemistry, Nanchang Normal University, Nanchang, Jiangxi, People's Republic of China
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Iron oxide nanoparticles wrapped in graphene aerogel composite: Fabrication and application in electro-fenton at a Wide pH. Colloids Surf A Physicochem Eng Asp 2020. [DOI: 10.1016/j.colsurfa.2019.124269] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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Huang T, Liu L, Tao J, Zhou L, Zhang S. Microbial fuel cells coupling with the three-dimensional electro-Fenton technique enhances the degradation of methyl orange in the wastewater. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2018; 25:17989-18000. [PMID: 29687198 DOI: 10.1007/s11356-018-1976-4] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/11/2018] [Accepted: 04/06/2018] [Indexed: 06/08/2023]
Abstract
The emission of the source effluent of azo dyes has resulted in a serial of environmental problems including of the direct damage of the natural esthetics, the inhibition of the oxygen exchange, the shortage of the photosynthesis, and the reduction of the aquatic flora and fauna. A bioelectrochemical platform (3D-EF-MFCs) combining two-chamber microbial fuel cells and three dimensional electro-Fenton technique were delicately designed and assembled to explore the decolorization, bio-genericity performance of the methyl orange, and the possible biotic-abiotic degradation mechanisms. The 3D-EF-MFCs processes showed higher decolorization efficiencies, COD removals, and better bioelectricity performance than the pure electro-Fenton-microbial fuel cell (EF-MFC) systems. The two-chamber experiments filling with the granular activated carbons were better than the single-chamber packing system on the whole. The moderate increase of Fe2+ ions dosing in the cathode chamber accelerated the formation of •OH, which further enhanced the degradation of the methyl orange (MO). The cathode-decolorization and COD removals were decreased with the increase of MO concentration. However, the degradation performance of MO was indirectly improved in the anode compartment at the same conditions. The bed electrodes played a mediator role in the anode and cathode chambers, certainly elevated the voltage output and the power density, and lowered the internal impedance of EF-MFC process.
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Affiliation(s)
- Tao Huang
- School of Chemistry and Materials Engineering, Changshu Institute of Technology, 215500, Changshu, Suzhou, Jiangsu, China
| | - Longfei Liu
- School of Chemistry and Materials Engineering, Changshu Institute of Technology, 215500, Changshu, Suzhou, Jiangsu, China.
| | - Junjun Tao
- School of Chemistry and Materials Engineering, Changshu Institute of Technology, 215500, Changshu, Suzhou, Jiangsu, China
| | - Lulu Zhou
- School of Chemistry and Materials Engineering, Changshu Institute of Technology, 215500, Changshu, Suzhou, Jiangsu, China
| | - Shuwen Zhang
- State Key Laboratory for coal mine disaster dynamics and control, Chongqing University, 400044, Shapingba, Chongqing, China
- School of Resource and Environmental Science, Chongqing University, Chongqing, 400044, China
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Poza-Nogueiras V, Rosales E, Pazos M, Sanromán MÁ. Current advances and trends in electro-Fenton process using heterogeneous catalysts - A review. CHEMOSPHERE 2018. [PMID: 29529567 DOI: 10.1016/j.chemosphere.2018.03.002] [Citation(s) in RCA: 77] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
Over the last decades, advanced oxidation processes have often been used alone, or combined with other techniques, for remediation of ground and surface water pollutants. The application of heterogeneous catalysis to electrochemical advanced oxidation processes is especially useful due to its efficiency and environmental safety. Among those processes, electro-Fenton stands out as the one in which heterogeneous catalysis has been broadly applied. Thus, this review has introduced an up-to-date collation of the current knowledge of the heterogeneous electro-Fenton process, highlighting recent advances in the use of different catalysts such as iron minerals (pyrite, magnetite or goethite), prepared catalysts by the load of metals in inorganic and organic materials, nanoparticles, and the inclusion of catalysts on the cathode. The effects of physical-chemical parameters as well as the mechanisms involved are critically assessed. Finally, although the utilization of this process to remediation of wastewater overwhelmingly outnumber other utilities, several applications have been described in the context of regeneration of adsorbent or the remediation of soils as clear examples of the feasibility of the electro-Fenton process to solve different environmental problems.
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Affiliation(s)
- Verónica Poza-Nogueiras
- Department of Chemical Engineering, University of Vigo, Campus As Lagoas-Marcosende, 36310, Vigo, Spain
| | - Emilio Rosales
- Department of Chemical Engineering, University of Vigo, Campus As Lagoas-Marcosende, 36310, Vigo, Spain
| | - Marta Pazos
- Department of Chemical Engineering, University of Vigo, Campus As Lagoas-Marcosende, 36310, Vigo, Spain
| | - M Ángeles Sanromán
- Department of Chemical Engineering, University of Vigo, Campus As Lagoas-Marcosende, 36310, Vigo, Spain.
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