Gliding Arc Discharge (GAD) assisted catalytic degradation of bisphenol A in solution with ferrous ions

Abdelmalek, Fatiha; Torres-Palma, Ricardo A.; Combet, Evelyne; Pétrier, Christian; Pulgarín, C.; Addou, A.

doi:10.1016/j.seppur.2008.03.036

Cited by 52 publications

(34 citation statements)

References 44 publications

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“…A decrease in TOC from 41 to 32.5 mg L -1 was observed for 30 min of treatment with a TOC abatement of 20.7 % indicating a low mineralization of CV. Abdelmalek et al (2008) achieved only 19 % of TOC abatement for 30-min degradation of bisphenol A by glidarc plasma. Therefore, the byproducts of CV degradation for 30 min of glidarc treatment are still organic compounds.…”

Section: Effect Of Plasma On the Biodegradabilitymentioning

confidence: 95%

Gliding arc discharge-assisted biodegradation of crystal violet in solution with Aeromonas hydrophila strain

Njiki

Kamgang‐Youbi

Laminsi

et al. 2015

Int. J. Environ. Sci. Technol.

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The gliding arc discharge, which is a source of nonthermal plasma, was used to enhance the biodegradation of crystal violet (CV), a triphenylmethane nonbiodegradable organic dye. The determination of the biodegradability index, i.e., biochemical oxygen demand (BOD 5 )/chemical oxygen demand (COD) ratio, and the total organic carbon measurement were used to assess the biodegradability. For the biological treatment alone, a bacterial strain of Aeromonas hydrophila (8 9 10 8 -CFU mL -1 ) bleached 42 % of CV solution (50 mg L -1 ) after 12-h incubation. The bleaching rate was enhanced by increasing the initial bacterial concentration; however, a drop in the bleaching rate was noted when CV concentration was increased. For the plasma process alone, a 15-min treatment resulted in a color removal of 49.7 %, at a mineralization rate of 12.2 %, thereby increasing the BOD 5 /COD ratio from 0.11 to 0.23. There was an increase in the bleaching rate in temporal post-discharge conditions (i.e., self-continuity of reaction after the discharge was switched off): For 2 h of temporal post-discharge reaction, the color removal of the 15-min plasma-pre-treated CV increased to 55 %. The disappearance of color during each treatment method followed the first-order kinetics. With regard to the combined plasma/biological treatment process, the 15-min plasma-pre-treated sample was bleached at 92 % by A. hydrophila after 2-h incubation and completely bleached for 6 h. Therefore, there is a positive synergism of bacterial and plasma treatments. This combined treatment is useful in reducing the energy involved in complete mineralization of wastewater containing nonbiodegradable dyes.

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Section: Effect Of Plasma On the Biodegradabilitymentioning

confidence: 95%

Gliding arc discharge-assisted biodegradation of crystal violet in solution with Aeromonas hydrophila strain

Njiki

Kamgang‐Youbi

Laminsi

et al. 2015

Int. J. Environ. Sci. Technol.

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“…While the solution pH in process of GAD with ferrous is just about the same as that in process of GAD alone. The deviation of the former process was expected to the Reaction (12), which has the property of consuming hydrogen ions. Nevertheless, in a later stage of the treatment, the solution returned to stable acidic condition due to the property of GAD plasma.…”

Section: Influence Of Initial Ao7 Concentrationmentioning

confidence: 99%

“…Its efficiency is mainly due to the formation of chemically active species including short-lived active species (such as ÁOH, NOÁ, OÁ, O 2 -Á, HO 2 Á and HÁ) and longlived active molecules (such as H 2 O 2 , O 3 and other excited-state neutral molecules). The principal reactions are listed as followings [12]:…”

Section: Introductionmentioning

confidence: 99%

Degradation of Acid Orange 7 by Gliding Arc Discharge Plasma in Combination with Advanced Fenton Catalysis

Zhang

Wang

et al. 2010

Plasma Chem Plasma Process

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A new plasma-catalysis process of gliding arc discharge (GAD) plasma with zero-valent iron (ZVI) was examined. Because GAD plasma creates an acidic environment, solid iron releases ferrous ions which act as a catalyst for the decomposition of the hydrogen peroxide. A comparative study of the catalytic effects between Fe 2? and Fe 0 in GAD plasma was investigated. The decolorization reactions of Acid Orange 7 (AO7) followed pseudo-first-order kinetics. And the rate constants for the process of GAD with ZVI was increased by 30% and by 19%, respectively, compared with the process of GAD alone and the process of GAD with ferrous. The investigations of solution pH and hydrogen peroxide both demonstrated that the GAD plasma induced conditions are much suitable for advanced Fenton reactions. The corrosion of ZVI in GAD plasma can give continuous ferrous ions to sustain Fenton reaction. Also, ZVI was demonstrated to have favorable reusable feature.

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“…The most reactive species is the hydroxyl radical, which has an oxidation potential E°( Å OH/H 2 O) = 2.8 V vs. Normal hydrogen electrode (NHE) can attack the most part of organic molecules with rate constants usually in the order of 10 6 -10 9 M À1 s À1 (Burlica et al, 2004;Abdelmalek et al, 2008;Andreozzi et al, 1999). The probable reactions mechanisms taking place are listed as follows:…”

Section: Introductionmentioning

confidence: 99%

Plasma treatment by gliding arc discharge of dyes/dye mixtures in the presence of inorganic salts

Merouani

Abdelmalek

Taleb

et al. 2015

Arabian Journal of Chemistry

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The gliding arc discharge plasma (GAD) technique was used for discoloration and degradation of an anthraquinone dye Alizarin red S (ARS), an azo dye Orange G (OG) and their mixture. The influence of chloride and sulfate salts on the efficiency of treatment has also been studied. The aim of this study is the discoloration and degradation by GAD of ARS, and OG and their mixture.The GAD plasma generated between two moist air metallic electrodes connected to a high voltage produced chemical species and highly reactive molecules Å OH, NO Å , O Å , O 2 , HO 2 Å , H Å , H 2 O 2 , O 3 . . . and other excited-state neutral molecules. The reactions of discoloration for ARS and OG followed pseudo-first-order kinetics. The apparent kinetic constants of bleaching were found equal to 0.014 and 0.013 min À1 and degradation of 0.008 and 0.010 min À1 , respectively for the ARS and OG. For mixtures, the rate of discoloration was 80% in 120 min of treatment for mixtures III, IV and V, while the rate of COD reduction was fast in the first 30 min since it varied between 35% and 40% for all mixtures but stabilized at 68% toward the end of the treatment. The addition of chloride salts and sulfate showed a decrease in the effectiveness of treatment.

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Gliding Arc Discharge (GAD) assisted catalytic degradation of bisphenol A in solution with ferrous ions

Cited by 52 publications

References 44 publications

Gliding arc discharge-assisted biodegradation of crystal violet in solution with Aeromonas hydrophila strain

Gliding arc discharge-assisted biodegradation of crystal violet in solution with Aeromonas hydrophila strain

Degradation of Acid Orange 7 by Gliding Arc Discharge Plasma in Combination with Advanced Fenton Catalysis

Plasma treatment by gliding arc discharge of dyes/dye mixtures in the presence of inorganic salts

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