Utilization of plasma in water desalination and purification

Ekanayake, U.G. Mihiri; Barclay, Mitchell; Seo, Dong Han; Park, Myoung Jun; MacLeod, Jennifer; O’Mullane, Anthony P.; Motta, Nunzio; Shon, Ho Kyong; Ostrikov, Kostya Ken

doi:10.1016/j.desal.2020.114903

Cited by 38 publications

(10 citation statements)

References 93 publications

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“…Plasma-based systems (PBS) were efficiently reported for bacteria and virus inactivation by causing damage to biological macromolecules in water. Moreover, various researchers recommended PBS as a potent disinfection strategy to combat the epidemic caused by SARS-CoV-2 (Ekanayake et al 2021 ; Guo et al 2021 ). Ajo et al ( 2018 ) evaluated a plasma pilot-scale system associated with an ultrafiltration treatment unit (Fig.…”

Section: Combined Systems For Virus Disinfectionmentioning

confidence: 99%

Disinfection of corona and myriad viruses in water by non-thermal plasma: a review

Guesmi

Cherif

Baaloudj

et al. 2022

Environ Sci Pollut Res

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Nowadays, in parallel to the appearance of the COVID-19 virus, the risk of viruses in water increases leading to the necessity of developing novel disinfection methods. This review focuses on the route of virus contamination in water and introduces non-thermal plasma technology as a promising method for the inactivation of viruses. Effects of essential parameters affecting the non-thermal discharge for viral inactivation have been exposed. The review has also illustrated a critical discussion of this technology with other advanced oxidation processes. Additionally, the inactivation mechanisms have also been detailed based on reactive oxygen and nitrogen species.

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Section: Combined Systems For Virus Disinfectionmentioning

confidence: 99%

Disinfection of corona and myriad viruses in water by non-thermal plasma: a review

Guesmi

Cherif

Baaloudj

et al. 2022

Environ Sci Pollut Res

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“…Similarly, Ekanayake et al (2021) reviewed the potential of non-thermal plasma for water purification and desalination purposes and concluded that this novel technology can be an effective tool in achieving such goals. It possesses the efficacy of improving water purification and desalination purposes making them more effective and energy efficient.…”

Section: Parameters Affecting the Efficiency Of Cold Plasma Technology In Wastewater Treatmentmentioning

confidence: 99%

Cold plasma technology: advanced and sustainable approach for wastewater treatment

Gururani

Bhatnagar

Bisht

et al. 2021

Environ Sci Pollut Res

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Cold plasma has been a potent energy-efficient and eco-friendly advanced oxidation technology which has gained attention in recent decades as a non-thermal approach in diverse forms of applications. This review highlights a comprehensive account of the implementation of this technology in the field of wastewater treatment to resolve certain issues regarding the degradation of numerous aqueous pollutants and water-borne pathogenic microorganisms including viruses up to a significant level. The paper addresses plasma chemistry sources and mechanisms on wastewater treatment and impact on various physical, chemical, and biological characteristics of treated water. Furthermore, studies have revealed that this emerging technology is effective in inactivating SARS-CoV-2 or coronavirus, which serves as a transmission channel for this lethal virus in wastewater. Despite these benefits, the development of cold plasma as a wastewater treatment technique is still hampered by a lack of information like capital investment, proficient application, liveability, and operating cost, thus necessitating additional research for its booming commercialization, as this can be an emerging approach to solving water crises and meeting the demand for fresh or potable water resources.

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“…These reactive species produced in CAPs can react with SOPs to degrade them, producing ecofriendly small molecules such as CO 2 and H 2 O. Due to the advantages of low energy consumption cost, high mineralization rate, low pollution and compatibility with existing treatment processes, degradation by CAPs has received remarkable attention [35].…”

Section: Introductionmentioning

confidence: 99%

Reactive Molecular Dynamics Simulation on Degradation of Tetracycline Antibiotics Treated by Cold Atmospheric Plasmas

Guo

Zhang

2023

Molecules

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The abuse of tetracycline antibiotics (TCs) has caused serious environmental pollution and risks to public health. Degradation of TCs by cold atmospheric plasmas (CAPs) is a high efficiency, low energy consumption and environmentally friendly method. In this study, a reactive molecular dynamics (MD) simulation is applied to study the interactions of reactive oxygen species (ROS) produced in CAPs and TCs (including tetracycline (TC), oxytetracycline (OTC), chlortetracycline (CTC) and demeclocycline (DMC)). As revealed by the simulation data at the atomic level, the main reaction sites on TCs are the C2 acylamino, the C4 dimethylamine, the C6 methyl group, the C8 site on the benzene ring and the C12a tertiary alcohol. The interaction between ROS and TCs is usually initiated by H-abstraction, followed by the breaking and formation of the crucial chemical bonds, such as the breaking of C-C bonds, C-N bonds and C-O bonds and the formation of C=C bonds and C=O bonds. Due to the different structures of TCs, when the ROS impact OTC, CTC and DMC, some specific reactions are observed, including carbonylation at the C5 site, dechlorination at the C7 site and carbonylation at the C6 site, respectively. Some degradation products obtained from the simulation data have been observed in the experimental measurements. In addition, the dose effects of CAP on TCs by adjusting the number of ROS in the simulation box are also investigated and are consistent with experimental observation. This study explains in detail the interaction mechanisms of degradation of TCs treated by CAPs with the final products after degradation, provides theoretical support for the experimental observation, then suggests optimization to further improve the efficiency of degradation of TCs by CAPs in applications.

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Utilization of plasma in water desalination and purification

Cited by 38 publications

References 93 publications

Disinfection of corona and myriad viruses in water by non-thermal plasma: a review

Disinfection of corona and myriad viruses in water by non-thermal plasma: a review

Cold plasma technology: advanced and sustainable approach for wastewater treatment

Reactive Molecular Dynamics Simulation on Degradation of Tetracycline Antibiotics Treated by Cold Atmospheric Plasmas

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