Oxidation of ubiquitous aqueous pharmaceuticals with pulsed corona discharge

Derevshchikov, Vladimir; Dulova, Niina; Preis, Sergei

doi:10.1016/j.elstat.2021.103567

Cited by 7 publications

(2 citation statements)

References 65 publications

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“…Except for hydroxyl radicals, atomic oxygen, ozone, hydrogen peroxide, and other reactive species participate in PCD oxidation. Previously, it showed high removal efficiency for pharmaceuticals such as metformin, tramadol, and dexamethasone [18,19], as well as improved oxidation rates with persulfate addition [20]. The use of persulfate additives is actively studied for other plasma types, for example, double barrier discharge, achieving increased degradation rates for different organic pollutants [21][22][23].…”

Section: Introductionmentioning

confidence: 99%

Degradation of Antibiotic Vancomycin by UV Photolysis and Pulsed Corona Discharge Combined with Extrinsic Oxidants

et al. 2023

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Antibiotics are the most frequently detected pharmaceuticals in the environment creating conditions for the development of resistant genes in bacteria. Degradation and mineralization of glycopeptide antibiotic vancomycin (VMN) were examined by UV photolysis, pulsed corona discharge (PCD), and their combinations with extrinsic oxidants, hydrogen peroxide (HP), peroxydisulfate (PDS), and peroxymonosulfate (PMS). Both combinations were effective in VMN degradation and faster at pH 11 than in acidic or neutral media. Combined with the UV photolysis, HP showed a higher oxidation rate than other oxidants, whereas PMS and PDS proved to be more efficient in combinations with PCD. In contrast to low-to-moderate mineralization of VMN in the UV/oxidant combinations, PCD and PCD/oxidant combinations appeared to be more effective, reaching up to 90% of TOC removal in acidic/neutral solutions. Application of extrinsic oxidants resulted in an energy efficiency of VMN 90% oxidation improved from 36 to 61 g kW−1 h−1 in HP-assisted photolysis, and from 195 to 250 g kW−1 h−1 in PCD with additions of HP and PDS, thus showing the promising character of the combined treatment.

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Section: Introductionmentioning

confidence: 99%

Degradation of Antibiotic Vancomycin by UV Photolysis and Pulsed Corona Discharge Combined with Extrinsic Oxidants

et al. 2023

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“…Recently, the application of electric discharges has been gaining attention in the treatment of polluted aqueous media [18][19][20]. Keeping in mind the energy yield in pollutant removal as the contest criterion, the gas-phase pulsed corona discharge (PCD) has proven its advanced character, surpassing the closest competitor, conventional ozonation, a few times over in respect of various pollutants, including pharmaceuticals [21][22][23].…”

Section: Introductionmentioning

confidence: 99%

Oxidation of Aqueous Dexamethasone Solution by Gas-Phase Pulsed Corona Discharge

Onga

Kattel-Salusoo

Trapido

et al. 2022

Water

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The most widely used anti-inflammatory corticosteroid dexamethasone (DXM), frequently detected in waterbodies due to its massive consumption and incomplete removal in wastewater treatment processes, was experimentally studied for oxidation with gas-phase pulsed corona discharge (PCD) varied in pulse repetition frequency, pH, DXM initial concentration and additions of surfactant sodium dodecyl sulphate (SDS) and tert-butyl alcohol (TBA). The experimental study also included ozonation as compared to PCD in energy efficiency. The advantageous energy efficiency of PCD was observed in wide spans of pH and DXM initial concentrations surpassing ozonation by about 2.4 times. Identified transformation by- and end-products (fluoride and acetate), as well as the impact of radical scavengers, point to the prevalent radical oxidation of DXM. Somewhat increased toxicity observed on the course of PCD-treatment of high DXM concentrations presents a subject for further studies.

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Oxidation of aqueous bisphenols A and S by pulsed corona discharge: Impacts of process control parameters and oxidation products identification

Tikker

Nikitin

Preis

2022

Chemical Engineering Journal

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Oxidation of ubiquitous aqueous pharmaceuticals with pulsed corona discharge

Cited by 7 publications

References 65 publications

Degradation of Antibiotic Vancomycin by UV Photolysis and Pulsed Corona Discharge Combined with Extrinsic Oxidants

Degradation of Antibiotic Vancomycin by UV Photolysis and Pulsed Corona Discharge Combined with Extrinsic Oxidants

Oxidation of Aqueous Dexamethasone Solution by Gas-Phase Pulsed Corona Discharge

Oxidation of aqueous bisphenols A and S by pulsed corona discharge: Impacts of process control parameters and oxidation products identification

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