An overview on the removal of synthetic dyes from water by electrochemical advanced oxidation processes

Nidheesh, P.V.; Zhou, Minghua; Oturan, Mehmet A.

doi:10.1016/j.chemosphere.2017.12.195

Cited by 872 publications

(266 citation statements)

References 207 publications

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“…For instance, complete degradation of 0.1 mM antibiotic amoxicillin was achieved in 60 min of electrolysis at 120 mA during the electrooxidation with H 2 O 2 using BDD anode (Figure 6), whereas electrooxidation at similar conditions without H 2 O 2 required over 90 min to completely destroy similar concentration of amoxicillin. [12,17,18,41,86] [85] Several other studies, especially from Oturan and Brillas groups have shown that electrooxidation using BDD anode with in-situ H 2 O 2 production (carbon-felt or carbon-PTFE GDE) achieved higher degradation and mineralization of different organic pollutants compared to electrooxidation without H 2 O 2 production (stainless steel, graphite and titanium cathode).…”

Section: Reactive Oxygen Speciesmentioning

confidence: 99%

Nature, Mechanisms and Reactivity of Electrogenerated Reactive Species at Thin‐Film Boron‐Doped Diamond (BDD) Electrodes During Electrochemical Wastewater Treatment

2019

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Electrooxidation of hazardous organic pollutants contaminating wastewater using thin-film boron-doped diamond (BDD) electrodes is an efficient and well-studied treatment technique. In this review, the three main reactive species, namely: reactive oxygen, chlorine and sulfate species, which can be electrogenerated and then participate in the oxidation processes during electrooxidative wastewater treatment using BDD electrodes, are discussed. The main factors affecting the nature and quantity of the electrogenerated reactive species, specifically the composition of the BDD electrode (doping level and sp 3 /sp 2 ratio) and the operating parameters (working current density and composition of water matrix been electrolyzed) were explained with relative examples. Extensive discussion on mode and reactivity of the three reactive species with organic pollutants during electrooxidation was provided and the future perspectives and direction of research on reactive species generated on BDD electrodes were also discussed.[a] Dr.

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Section: Reactive Oxygen Speciesmentioning

confidence: 99%

Nature, Mechanisms and Reactivity of Electrogenerated Reactive Species at Thin‐Film Boron‐Doped Diamond (BDD) Electrodes During Electrochemical Wastewater Treatment

2019

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“…The average concentration of dye in the textile wastewater is about 300 mg L −1 . These dyes are recalcitrant in nature and highly stable during chemical, photolytic and biological activities ,. An untreated wastewater containing dye is major threats to environment, causes the visibility issues and affects the aquatic lives.…”

Section: Applications Of Bdd In Water and Wastewater Treatmentmentioning

confidence: 99%

“…Efficient degradation of several other organic micropollutants has been also carried out. Synthetic dyes are one of the pollutant families largely studied by electro‐Fenton process ,. including complete color removal, oxidation kinetics studies, almost complete mineralization yield and degradation pathways ,,.…”

Section: Applications Of Bdd In Water and Wastewater Treatmentmentioning

confidence: 99%

Environmental Applications of Boron‐Doped Diamond Electrodes: 1. Applications in Water and Wastewater Treatment

Nidheesh

Divyapriya

Oturan³

et al. 2019

ChemElectroChem

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133

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Over the past few decades, environmental applications of the boron‐doped diamond (BDD) electrode are reported to be vast and versatile. Applications of BDD electrodes in the field of electrochemical advanced oxidation processes (EAOPs) for the abatement of toxic persistent organic pollutants are significant, owing to the easy and effective way of treatment. This article focuses on highlighting and summarizing the applications of the BDD electrode for the treatment of different synthetic and real wastewaters, such as those involved in pharmaceuticals and personal care products, pesticides/herbicides, dyes, etc. We also review the processes and methodologies involving the synthesis of BDD electrodes and summarize the desirable characteristic features required for the application of EAOPs. Applications of BDD electrodes for the treatment of wastewater through different EAOPs, including anodic oxidation, electro‐Fenton, coupling processes such as electro‐Fenton pyrite, bioelectro‐Fenton, and their recent advancements are also discussed in detail. It envisages the greater potential for complete treatment of different toxic wastewater effluents. This Review shows that the application of BDD electrodes in the field of wastewater treatment is tremendous and proves to be a promising material for future perspectives.

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“…[27] The main parameters employed to evaluate the efficiency of this process are pH and coagulant dosage. [25,26,31,[32][33][34][35][36][37][38][39] The degradation of organic compounds in aqueous mediums occurs via the generation of intermediary species, such as the hydroxyl radical ( * OH), which is formed through electrochemical water oxidation. [28] The use of AOPs has been considered the best solution to degrade refractory compounds in wastewater.…”

Section: Introductionmentioning

confidence: 99%

Landfill Leachate Treatment by Combining Coagulation and Advanced Electrochemical Oxidation Techniques

et al. 2019

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This paper presents and discusses the results obtained in the treatment of raw landfill leachate (RLL) with a combination of coagulation-flocculation (Alum) and electrochemical techniques, using a filter-press reactor with a boron-doped diamond electrode. The success of the treatment was demonstrated by the quality of the treated water, which was evaluated based on parameters such as color, odor, turbidity, chemical oxygen demand, biochemical oxygen demand, free and total chlorine, total nitrite and nitrate, ammonia and microbiological tests (mesophiles and termotolerant coliforms). The best conditions for coagulation-flocculation involved a dosage of 20 mL/L Al 2 (SO 4 ) 3 (50 g/L) at pH 6.0. To reduce energy consumption, the electrochemical treatments were carried out by applying different limiting current density (i lim ) step sequences. This strategy reduced the energy consumed in the removal of the organic load by up to 40 % while maintaining a similarly effective mineralization rate (> 90 % COD removal) between the steps. Microbiological tests revealed that the number of mesophiles was more than twelve orders of magnitude lower after electrolysis, indicating the important sanitizing effect caused by the HClO/chloramine species generated in the process. Color, turbidity and ammoniacal nitrogen were completely eliminated from the treated leachate by the end of the electrolysis process.[a] M.

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An overview on the removal of synthetic dyes from water by electrochemical advanced oxidation processes

Cited by 872 publications

References 207 publications

Nature, Mechanisms and Reactivity of Electrogenerated Reactive Species at Thin‐Film Boron‐Doped Diamond (BDD) Electrodes During Electrochemical Wastewater Treatment

Nature, Mechanisms and Reactivity of Electrogenerated Reactive Species at Thin‐Film Boron‐Doped Diamond (BDD) Electrodes During Electrochemical Wastewater Treatment

Environmental Applications of Boron‐Doped Diamond Electrodes: 1. Applications in Water and Wastewater Treatment

Landfill Leachate Treatment by Combining Coagulation and Advanced Electrochemical Oxidation Techniques

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