Degradation of antibiotics by electrochemical advanced oxidation processes (EAOPs): Performance, mechanisms, and perspectives

The Science of The Total Environment, Journal Year: 2022, Volume and Issue: 856, P. 159092 - 159092

Published: Sept. 27, 2022

Language: Английский

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Advances in the decontamination of wastewaters with synthetic organic dyes by electrochemical Fenton-based processes

Separation and Purification Technology, Journal Year: 2023, Volume and Issue: 316, P. 123764 - 123764

Published: April 5, 2023

Large amounts of diverse colored synthetic organic dyes are discharged from industrial effluents in the environment causing non-esthetic pollution and serious health-risk problems. Dyes very stable upon solar irradiation, temperature, biological treatment, then being non-removed conventional wastewater treatment plants. The decontamination dyeing by potent methods has received increasing attention over last years, showing a marked relevance electrochemical Fenton-based processes consisting H2O2 electro-generation its catalytic decomposition with Fe2+ to form ∙OH. This paper presents comprehensive review these period 2018–2022 dealing discoloration mineralization solutions real wastewaters single or mixed dyes. Homogeneous electro-Fenton (EF), heterogeneous EF solid catalysts functionalized cathodes, photoelectro-Fenton (PEF), microbial fuel cells, other hybrid adsorption, nanofiltration, electro-peroxone, photoelectrocatalysis, sequential electrocoagulation sonication summarized. principles explained understand role oxidizing agents generated. accumulation at pH 3.0 is described cathodes raw modified carbonaceous materials as well gas-diffusion electrodes, effect anode, electrolyte composition, applied current density cathodic potential, dye contents on homogeneous performance discussed. Rapid much slower were found EF. Similar behavior was obtained for EF, although allowed operating more neutral without sludge precipitation. removal improved PEF (SPEF) due positive photolysis Fe(III) species UVA light sunlight, respectively. SPEF can be envisaged best cost-effective destruction.

Language: Английский

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Development of persulfate-based advanced oxidation processes to remove synthetic azo dyes from aqueous matrices

Chemosphere, Journal Year: 2024, Volume and Issue: 355, P. 141766 - 141766

Published: March 23, 2024

Azo dyes are largely used in many industries and discharged large volumes of their effluents into the aquatic environment giving rise to non-esthetic pollution health-risk problems. Due high stability azo ambient conditions, they cannot be abated conventional wastewater treatment plants. Over last fifteen years, decontamination dyeing by persulfate (PS)-based advanced oxidation processes (AOPs) has received a great attention. In these methods, PS is activated decomposed sulfate radical anion (SO

Language: Английский

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Challenges and opportunities for large-scale applications of the electro-Fenton process

Water Research, Journal Year: 2024, Volume and Issue: 266, P. 122430 - 122430

Published: Sept. 11, 2024

Language: Английский

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High stable photo-Fenton-like catalyst of FeP/Fe single atom-graphene oxide for long-term antibiotic tetracycline removal

Applied Catalysis B Environment and Energy, Journal Year: 2022, Volume and Issue: 324, P. 122243 - 122243

Published: Dec. 1, 2022

Language: Английский

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Removal of pharmaceutically active compounds from wastewater using adsorption coupled with electrochemical oxidation technology: A critical review

Journal of Industrial and Engineering Chemistry, Journal Year: 2023, Volume and Issue: 126, P. 20 - 35

Published: June 7, 2023

Language: Английский

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Current Mechanism of Peroxymonosulfate Activation by Cobalt-Based Heterogeneous Catalysts in Degrading Organic Compounds

ACS ES&T Engineering, Journal Year: 2023, Volume and Issue: 4(1), P. 19 - 46

Published: Aug. 14, 2023

Persulfate based advanced oxidation processes (PS-AOPs) have been regarded as a mainstream degradation technology of organic compounds due to their high efficiency in wastewater treatment. In particular, peroxymonosulfate (PMS) has unique structure and chemical properties, which can be efficiently activated by Co-based catalysts produce active species with potential. These usually determine the subsequent an efficient process, while intrinsic reaction mechanism behind this complex process remains unclear therefore impedes continual development scientific community. Recently, density functional theory (DFT) calculations emerged powerful means identify electronic properties distinguish energy changes PMS activation system. With assistance quantum calculation, increasing investigations conducted focusing on explaining phenomenon that occurred experiments. However, these mainly contributed part sometimes even differ from each other, lacking comprehensive summary DFT calculation results. review, we introduce main uses catalytic PMS, provide recent application examples heterogeneous different structures, then discuss detail. Finally, research results method field are summarized, future focus challenges put forward, is conducive guiding practical design further PS-AOPs creating value products.

Language: Английский

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A review of antibiotics in surface water and their removal by advanced electrocoagulation technologies

The Science of The Total Environment, Journal Year: 2023, Volume and Issue: 906, P. 167737 - 167737

Published: Oct. 10, 2023

Language: Английский

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Hydrogen peroxide electrogeneration from O2 electroreduction: A review focusing on carbon electrocatalysts and environmental applications

Chemosphere, Journal Year: 2024, Volume and Issue: 352, P. 141456 - 141456

Published: Feb. 15, 2024

Language: Английский

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Recent trends on the catalytic activation of peroxymonosulfate for the abatement of organic dyes in waters

Journal of environmental chemical engineering, Journal Year: 2024, Volume and Issue: 12(4), P. 113191 - 113191

Published: May 29, 2024

Peroxymonosulfate (HSO5−, PMS) is a well-known oxidant for water treatment. It needs to be activated form strong oxidizing agents of organic pollutants like sulfate radical (SO4●−), hydroxyl (●OH), superoxide ion (O2•−), and the non-radical singlet oxygen (1O2). Recently, removal synthetic dyes from waters by PMS upon homogeneous heterogeneous catalysts has received great research attention due their high effectiveness oxidation rate determined simple treatments centered at bench scale in laboratory. The present review summarizes analyzes recent trends this topic over period 2020-2023. Homogeneous with transition metal ions iron Cu2+, single or mixed metals such as Co, Cu, Fe, Mn, MOFs, carbonaceous other materials, have been examined. action these detailed generation activation. Selected examples describe discoloration contaminated influence operating variables on process performance. production oxidants via mechanisms reduction confirmed specific scavengers EPR analysis. In some cases, effect aqueous matrix dye analyzed detection its by-products described proposal pathways degradation/mineralization better know process. A final section proposes future development remediation catalytic activators PMS.

Language: Английский

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