Degradation effect and mechanism of gas-liquid phase dielectric barrier discharge on norfloxacin combined with H2O2 or Fe2+

Xu, Zimu; Xue, Xiaojuan; Hu, Shuheng; Li, Yunxia; Shen, Jie; Liu, Yan; Zhou, Rongxing; Yang, Fan; Cheng, Cheng

doi:10.1016/j.seppur.2019.115862

Cited by 68 publications

(23 citation statements)

References 59 publications

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“…These applausive results show the superiority of the DBD system in the battement of pharmaceutical toxins in water sources and should highly be considered as promising advanced technology in water and wastewater remediation. An accolade study on the degradation of norfloxacin (NOR) pharmaceutical was conducted by Xu et al [167] using an air gas single planar DBD reactor disclosed in Figure 12. In their investigation, the authors focused on the determination of the aqueous concentration of major long-lived reactive oxygen species (ROS) including O 3 , H 2 O 2, and NO 3 − when altering the discharge time varied from 0.5, 1, 2 to 4 min and initial solution pH changed from 3, 5, 7 to 9 in the DBD system.…”

Section: Degradation Of Pharmaceuticals By Dbd Configurationsmentioning

confidence: 99%

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Removal of Pharmaceutical Residues from Water and Wastewater Using Dielectric Barrier Discharge Methods—A Review

Mouele

Tijani

Badmus

et al. 2021

IJERPH

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Persistent pharmaceutical pollutants (PPPs) have been identified as potential endocrine disruptors that mimic growth hormones when consumed at nanogram per litre to microgram per litre concentrations. Their occurrence in potable water remains a great threat to human health. Different conventional technologies developed for their removal from wastewater have failed to achieve complete mineralisation. Advanced oxidation technologies such as dielectric barrier discharges (DBDs) based on free radical mechanisms have been identified to completely decompose PPPs. Due to the existence of pharmaceuticals as mixtures in wastewater and the recalcitrance of their degradation intermediate by-products, no single advanced oxidation technology has been able to eliminate pharmaceutical xenobiotics. This review paper provides an update on the sources, occurrence, and types of pharmaceuticals in wastewater by emphasising different DBD configurations previously and currently utilised for pharmaceuticals degradation under different experimental conditions. The performance of the DBD geometries was evaluated considering various factors including treatment time, initial concentration, half-life time, degradation efficiency and the energy yield (G50) required to degrade half of the pollutant concentration. The review showed that the efficacy of the DBD systems on the removal of pharmaceutical compounds depends not only on these parameters but also on the nature/type of the pollutant.

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Section: Degradation Of Pharmaceuticals By Dbd Configurationsmentioning

confidence: 99%

“…+ OH . [ 133 , 167 ]. Next, the pollutant/pharmaceutical reacts with formed radicals and is mineralised.…”

Section: Overview Of the Plasma Processmentioning

confidence: 99%

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Removal of Pharmaceutical Residues from Water and Wastewater Using Dielectric Barrier Discharge Methods—A Review

Mouele

Tijani

Badmus

et al. 2021

IJERPH

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“…Most of the recent studies on plasma degradation of water contaminants have been carried out using electrical discharges generated in gas phase in contact with liquid. Very simple geometries, such as corona, dielectric barrier discharges or gliding arc above liquid, have often been reported for the removal of antibiotics (El Shaer et al 2020;Smith et al 2018;Sarangapani et al 2019;Xu et al 2020;Zhang et al 2018;Acayanka et al 2019) and pesticides (Hijosa-Valsero et al 2013;Hu et al 2013;Li et al 2013;Singh et al 2016Singh et al , 2017. Since the penetration depth of the plasma-generated reactive species into the solution is very small, in such configurations the volume of plasma-treated solution is generally very small, in the milliliter range (Smith et al 2018;Zhang et al 2018;Xu et al 2020).…”

Section: Non-thermal Plasma: a New Candidate Water Treatment For The ...mentioning

confidence: 99%

Remediation of Emerging Contaminants

Morin‐Crini

Lichtfouse

Fourmentin

et al. 2021

Environmental Chemistry for a Sustainable World

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“…Many investigations have focused on the development of stable heterogeneous catalysts to minimize leaching while increasing catalytic activity and long-term stability. However, the development of a more reliable process involving catalysts is still necessary [21].…”

Section: Introductionmentioning

confidence: 99%

Paracetamol Degradation by Catalyst Enhanced Non-Thermal Plasma Process for a Drastic Increase in the Mineralization Rate

et al. 2020

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In order to remediate the very poor mineralization of paracetamol in water, even when well degraded by using a Non-Thermal Plasma (NTP) process at a very low dissipated power, a plasma-catalyst coupling process was tested and investigated. A homemade glass fiber supported Fe3+ catalyst was immersed in the liquid to be treated in a Dielectric Barrier Discharge plasma reactor. The plasma-catalysis process, at the same low dissipated power, achieved a mineralization rate of 54% with a full conversion rate of paracetamol at 25 mg L−1 in initial concentration after 60 min treatment, thanks to Fenton-like effects. The synergetic effects of the plasma-catalysis coupling process also improved the Energy Yield by a factor of two. The catalyst before and after use for treatment was characterized by Brunauer-Emmett-Teller and Thermogravimetric analysis. High-Performance Liquid Chromatography was used to measure the concentration of treated solution and to investigate the intermediates. Two of them, namely 1,4-hydroquinone and 1,4-benzoquinone, were formally identified. Some intermediates are presented in this paper as a function of treatment time and their UV absorbance spectra. NTP processes with and without catalyst coupling were compared in terms of acidity, conductivity, and nitrate concentrations in the treated solution.

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Degradation effect and mechanism of gas-liquid phase dielectric barrier discharge on norfloxacin combined with H2O2 or Fe2+

Cited by 68 publications

References 59 publications

Removal of Pharmaceutical Residues from Water and Wastewater Using Dielectric Barrier Discharge Methods—A Review

Removal of Pharmaceutical Residues from Water and Wastewater Using Dielectric Barrier Discharge Methods—A Review

Remediation of Emerging Contaminants

Paracetamol Degradation by Catalyst Enhanced Non-Thermal Plasma Process for a Drastic Increase in the Mineralization Rate

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