Influence of reactor design on the electrochemical oxidation and disinfection of wastewaters using boron-doped diamond electrodes

Sandoval, Miguel A.; Calzadilla, Wendy; Salazar, Ricardo

doi:10.1016/j.coelec.2022.100939

Cited by 23 publications

(15 citation statements)

References 75 publications

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“…Key performance factors are disinfection efficiency or pollutant removal, HRT, SEC, and stability. Most electrochemical production of oxidants for water treatment reported in the literature operates in batch mode [28,126,133,149,152,153], while a continuous-flow system is desirable [32,154] to couple the EC to technologies already running in continuous modes, such as CWs. The pattern of the water flux across continuous-flow EC is also a crucial operational parameter that can impact pollutant removal and the system's stability [29,32,108,145].…”

Section: (Bio-)electrochemical Cell Configurations For Water Treatmentmentioning

confidence: 99%

Water treatment and reclamation by implementing electrochemical systems with constructed wetlands

Mosquera-Romero¹,

Ntagia²,

Rousseau³

et al. 2023

Environmental Science and Ecotechnology

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Section: (Bio-)electrochemical Cell Configurations For Water Treatmentmentioning

confidence: 99%

Water treatment and reclamation by implementing electrochemical systems with constructed wetlands

Mosquera-Romero¹,

Ntagia²,

Rousseau³

et al. 2023

Environmental Science and Ecotechnology

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“…Some of these drawbacks may be overcome by employing batch-divided reactors, for example, by means of a membrane to separate the anodic and cathodic compartments [65,66]. This configuration is highly viable and enhances the current efficiency [67], but the space between the electrodes is very large, causing slower reactions [68]. Anyway, an undivided batch reactor, where both cathode and anode are in the same vessel, is still the most studied configuration, with its simple design and ease of scale-up to an industrial scale [69].…”

Section: Electrochemical Reactor Designmentioning

confidence: 99%

“…For this proposal, continuous flow reactors are better for treating large volumes of polluted wastewater and operate under more realistic conditions. Continuous flow reactors enhance faradaic efficiency, causing lower energy consumption and lower electrolyte loads [68,71]. Moreover, using continuous flow reactors on the laboratory scale permits an easier process scaling up [72].…”

Section: Electrochemical Reactor Designmentioning

confidence: 99%

Application of Electrochemical Oxidation for Water and Wastewater Treatment: An Overview

Najafinejad¹,

Chianese²,

Fenti³

et al. 2023

Preprint

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In recent years, the discharge of various emerging pollutants, chemicals and dyes in water and wastewater has represented one of the prominent human problems. Since water pollution is directly related to human health, highly resistant and emerging compounds in aquatic environments will pose many potential risks to the health of all living. Therefore, water pollution is a very acute problem that has constantly increased in recent years with the expansion of various industries. Consequently, choosing efficient and innovative wastewater treatment methods to remove contaminants is crucial. Among advanced oxidation processes, electrochemical oxidation (EO) is the most common and effective method for removing persistent pollutants from municipal and industrial wastewater. However, there are still many gaps despite the great progress in using EO to treat real wastewater. This is due to the lack of comprehensive information on the operating parameters which affect the process and its operating costs. In this paper, among various scientific articles, the impact of operational parameters on the EO performances, a comparison between different electrochemical reactor configurations, and a report on general mechanisms of electrochemical oxidation of organic pollutants have been reported. Moreover, an evaluation of cost analysis and energy consumption requirements have also been discussed. Finally, the combination process between EO and another important advanced oxidation technology, PEC, called photoelectrocatalysis (PEC), has shortly been discussed and reviewed. This article showed that there is a direct relationship between important operating parameters with the amount of costs and the final removal efficiency of emerging pollutants. Optimal operating conditions can be achieved by paying special attention to reactor design, which can lead to higher efficiency and more efficient treatment. The rapid development of EO for removing emerging pollutants from impacted water and its combination with other green methods can result in more efficient approaches to face the pressing water pollution challenge.

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“…The pathogens inactivation is carried out by direct oxidation of pathogen at the anode surface or by indirect oxidation through physic/chemisorbed hydroxyl radicals in the surrounding area of the anode surface [101] , [153] , [154] . Quasi-direct oxidation also includes the electrochemical production of oxidizing species which can decontaminate effluents in the bulk solution [14] , [127] , [155] , [156] . Moreover, improvements of EAOP disinfection can be accomplished by coupling an external source of UV–Vis energy named as photo assisted EAOPs, e.g., photo-electrocoagulation process [101] .…”

Section: Advanced Oxidation Processes To Inactive Viral (Particularly...mentioning

confidence: 99%

“…Electrochemical oxidation is the most popular EAOP owing to its simplicity, low cost, easily operated, and high effectiveness to treat different wastewaters [127] . Tu et al, [157] studied an electrochemical disinfection method to inactivate the SARS-CoV-2 virus in aqueous solution.…”

Section: Advanced Oxidation Processes To Inactive Viral (Particularly...mentioning

confidence: 99%

A critical review on the existing wastewater treatment methods in the COVID-19 era: What is the potential of advanced oxidation processes in combatting viral especially SARS-CoV-2?

Mousazadeh

Kabdaşlı

Khademi³

et al. 2022

Journal of Water Process Engineering

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Influence of reactor design on the electrochemical oxidation and disinfection of wastewaters using boron-doped diamond electrodes

Cited by 23 publications

References 75 publications

Water treatment and reclamation by implementing electrochemical systems with constructed wetlands

Water treatment and reclamation by implementing electrochemical systems with constructed wetlands

Application of Electrochemical Oxidation for Water and Wastewater Treatment: An Overview

A critical review on the existing wastewater treatment methods in the COVID-19 era: What is the potential of advanced oxidation processes in combatting viral especially SARS-CoV-2?

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