Plasma decoloration of dye using dielectric barrier discharges with earthed spraying water electrodes

Wang, Zhaoyi; Xu, Dexuan; Yu, Chunlei; Chengxiang, Hao; Zhang, Xiaoyu

doi:10.1016/j.elstat.2008.03.009

Cited by 24 publications

(12 citation statements)

References 17 publications

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“…Various discharges in water are described in a review article by Bruggeman and Leys [13]. Since we used a discharge formed above the water surface, here we only mention this type of electrical discharge, which has been used for degradation of various organic compounds: phenols, benzenes, pharmaceutical compound and less extent organic dyes [14][15][16][17][18][19][20][21][22][23][24]. Our discharge is based on the dielectric barrier discharge (DBD), which is a typical non-equilibrium high pressure AC gas discharge.…”

Section: Introductionmentioning

confidence: 99%

Decolorization of reactive textile dyes using water falling film dielectric barrier discharge

Dojčinović¹,

Roglić

Obradović

et al. 2011

Journal of Hazardous Materials

176

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Section: Introductionmentioning

confidence: 99%

Decolorization of reactive textile dyes using water falling film dielectric barrier discharge

Dojčinović¹,

Roglić

Obradović

et al. 2011

Journal of Hazardous Materials

176

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“…Monopolar pulsed voltage of both polarities is reported in literature [144,145]. In the study of Wang et al [146], grounded water was sprayed from dielectric nozzles in proximity of a high-voltage dielectric barrier plate electrode (Figure 8g). When AC high voltage was applied to the plate, the by electrostatic induction generated electrostatic force pulled the water droplets to the glass dielectric layer.…”

Section: Low-energy Spray Discharge Reactorsmentioning

confidence: 96%

Electrical Discharge in Water Treatment Technology for Micropollutant Decomposition

Vanraes¹,

Nikiforov²,

Leys³

2016

Plasma Science and Technology - Progress in Physical States and Chemical Reactions

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Hazardous micropollutants are increasingly detected worldwide in wastewater treatment plant effluent. As this indicates, their removal is insufficient by means of conventional modern water treatment techniques. In the search for a cost-effective solution, advanced oxidation processes have recently gained more attention since they are the most effective available techniques to decompose biorecalcitrant organics. As a main drawback, however, their energy costs are high up to now, preventing their implementation on large scale. For the specific case of water treatment by means of electrical discharge, further optimization is a complex task due to the wide variety in reactor design and materials, discharge types, and operational parameters. In this chapter, an extended overview is given on plasma reactor types, based on their design and materials. Influence of design and materials on energy efficiency is investigated, as well as the influence of operational parameters. The collected data can be used for the optimization of existing reactor types and for development of novel reactors.

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“…Moreover, due to the complex organic structures of dyes, the conventional methods such as physical, chemical, and biological methods (ultrasound, cavitation, UV irradiation, oxidizing agents like chlorine and ozone, microbes, etc.) are either ineffective, economically not viable, or can create secondary toxic pollutants (1)(2)(3). Therefore, to overcome these challenges researchers explore other promising methods.…”

Section: Introductionmentioning

confidence: 99%

“…Along with HO· radical other oxidizing species such as ozone (O 3 ), ultraviolet (UV) radiation, hydrogen peroxide (H 2 O 2 ), etc. also play a significant role in the advanced oxidation process (3)(4)(5)(6)(7)(8)(9).…”

Section: Introductionmentioning

confidence: 99%

Dyes degradation using atmospheric pressure dielectric barrier discharge pencil plasma jet

Rathore

Pandey²,

Patel³

et al. 2023

Preprint

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The dye degradation efficacy of the cold plasma pencil jet is presented in the present investigation. Air plasma is produced in the cylindrical coaxial dielectric barrier discharge configuration. Electrical characterization of plasma is performed and the plasma species are identified using optical emission spectroscopy. For the dye degradation study using air plasma, six different types of dyes (erythrosine, metanil yellow, sudan I, crystal violet, rhodamine B, and Indigo) are chosen. The degradation of dyes is analyzed using UV visible spectroscopy, total organic carbon, and chemical oxygen demand. The results showed complete degradation of all the dyes in UV visible analysis with minimum time for indigo (3 minutes) and maximum time for erythrosine (45 minutes). Moreover, erythrosine (k = 1.08 mg L-1 min-1) and sudan I (k= 3.46 mg L-1 min-1) follows zero-order degradation kinetic and metanil yellow (k = 0.094 min-1), crystal violet (k = 0.25 min-1), rhodamine B (k = 0.17 min-1), Indigo (k = 0.81 min-1) follows first-order degradation kinetics. Also, substantial enhancement in mineralization and reduction in chemical oxygen demand of all the dyes occurs after plasma treatment. The toxicity of plasma degraded dye solution toward freshwater algae species (Chlorella Sorokiniana and Chlorella Pyrenoidosa) are significantly low compared to virgin dyes solutions. The study reveals that pencil plasma jet substantially degrade dyes as well as converts the dyes solutions non-toxic.

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Plasma decoloration of dye using dielectric barrier discharges with earthed spraying water electrodes

Cited by 24 publications

References 17 publications

Decolorization of reactive textile dyes using water falling film dielectric barrier discharge

Decolorization of reactive textile dyes using water falling film dielectric barrier discharge

Electrical Discharge in Water Treatment Technology for Micropollutant Decomposition

Dyes degradation using atmospheric pressure dielectric barrier discharge pencil plasma jet

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