Effects of electrode parameters on sewage disinfection by underwater pulsed arc discharge

Yang, Jin; He, Zhenghao; Liu, Yuchen; Zhang, Zhuoyu; Tu, Zhifei; Yin, Ming

doi:10.1016/j.elstat.2019.01.005

Cited by 8 publications

(6 citation statements)

References 17 publications

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“…Figure 4 shows that there is an optimal discharge electrode spacing under each initial discharge energy, and there is an apparent "parabola" characteristic between the peak pressure of the shock wave and the discharge electrode spacing, which is consistent with the previous study [24,33,36]. The shock wave pressure peaked under optimal discharge electrodes spacing.…”

Section: B Optimal Spacing Under Different Discharge Voltagessupporting

confidence: 87%

“…In previous studies [20,24,25], research on changing the discharge electrodes spacing is involved. In different application fields, the change of electrode spacing produces varied discharge effects.…”

Section: A Research On Optimal Spacingmentioning

confidence: 99%

“…In terms of applied researches, some scholars suggested the possibility of an optimal electrodes spacing. For example, when removing the Escherichia coli from sewage, researchers [24] found that the shock wave pressure increased first and then decreased as the electrodes spacing increased from 0.25 to 1.5 mm. It was concluded that the pulse arc discharge had the best sewage treatment effect when the electrodes spacing was 1 mm.…”

Section: Introductionmentioning

confidence: 99%

“…Some scholars [26][27][28] have studied the effect of metal wire on shock wave performance by adding metal wire between electrodes. Scholars such as Liang [29] and Yang [24] used the electrodes of different shapes to conduct discharge experiments, and found that the relative electrodes of hemispherical tip have better breakdown stability and higher breakdown efficiency. It is clear that the parameters of discharge electrodes play an important role in high voltage pulse discharge experiments.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Experimental Study on Pressure Wave Characteristics of High-Voltage Discharge in Water With Hemispherical Electrodes

Li¹,

Xue²,

Liang³

2021

IEEE Access

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Section: B Optimal Spacing Under Different Discharge Voltagessupporting

confidence: 87%

Section: A Research On Optimal Spacingmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Experimental Study on Pressure Wave Characteristics of High-Voltage Discharge in Water With Hemispherical Electrodes

Li¹,

Xue²,

Liang³

2021

IEEE Access

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“…Electrode geometry can play an important role in the cavity dynamics and acoustic radiation [17]. Typically a threshold electric field on the order of several hundred kV/cm is necessary to initiate the discharge [18].…”

Section: Introductionmentioning

confidence: 99%

Shock waves in pulsed electrical discharges in liquids: numerical simulation and comparison to experiment

Jiménez

Radfar

Kirk

et al. 2020

J. Phys. D: Appl. Phys.

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In this paper a computational model for the post-breakdown phase of an electrical discharge in liquids is presented and validated through comparison with data from a high voltage pulsed power discharge in a water-filled crucible. The numerical framework consists of an arc plasma channel modeled by equivalent resistor-inductor-capacitor circuit equations coupled to a computational fluid dynamics (CFD) model (based on OpenFOAM) that solves the compressible fluid equations for describing the shock waves associated with the rapid development of the plasma channel. The circuit model equations evolve the initial discharge plasma expansion which are then used to initialize the pressure pulse in the CFD model. Both single-phase (liquid) and two-phase (gas–liquid) CFD solvers were implemented and compared. The dynamics and magnitude of the simulated pressure pulse perturbations at the boundaries of the crucible were validated with the pressure sensor measurements made in an experiment of a pulsed electrical discharge in liquid water.

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An avalanche transistor-based Marx circuit pulse generator with sub-nanosecond, high frequency and high-voltage for pathogenic Escherichia coli ablation

Yin,

Zhao,

Sun

et al. 2024

Process Safety and Environmental Protection

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Effects of electrode parameters on sewage disinfection by underwater pulsed arc discharge

Cited by 8 publications

References 17 publications

Experimental Study on Pressure Wave Characteristics of High-Voltage Discharge in Water With Hemispherical Electrodes

Experimental Study on Pressure Wave Characteristics of High-Voltage Discharge in Water With Hemispherical Electrodes

Shock waves in pulsed electrical discharges in liquids: numerical simulation and comparison to experiment

An avalanche transistor-based Marx circuit pulse generator with sub-nanosecond, high frequency and high-voltage for pathogenic Escherichia coli ablation

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