Ballast Water Treatment Test at Pilot-Scale Using an Underwater Capillary Discharge Device

Byeon, Yong‐Seong; Hong, Eun Jeong; Yoo, Seungryul; Lho, T.; Yoon, Seok–Jin; Kim, Seong Bong; Yoo, Suk Jae; Ryu, Seon Young

doi:10.1007/s11090-017-9823-9

Cited by 8 publications

(6 citation statements)

References 23 publications

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“…In recent decades, plasma application has broadened from the semiconductor industry to living organisms: surgery 1 , meat treatment 2 , microorganism removal in sea water 3 , plasma-based water purification 4 , periodontitis treatment 5 , and agriculture 6 . In particular, pin-to-liquid discharge generates abundant nitric oxide species from humid air.…”

Section: Introductionmentioning

confidence: 99%

Mutual Interaction between Plasma Characteristics and Liquid Properties in AC-driven Pin-to-Liquid Discharge

Yoon¹,

Jeon²,

Yi³

et al. 2018

Sci Rep

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This study investigated the mutual interaction between the plasma and plasma treated water (PTW). Many works have shown that the plasma treatment decreases the pH of PTW due to nitric oxide electrolyte ion but the interactions between PTW and the plasma are still largely unknown. We investigated the effect of PTW on a plasma as well as the effect of a plasma on PTW using a pin-to-liquid discharge system. It is found that PTW affects not only the chemical properties but also the physical properties of the plasma such as breakdown voltage and concentration of plasma column. The decrease of the liquid surface tension of PTW due to nitric oxide electrolyte ion from the plasma results in the increase of plasma current onto the surface of PTW and vice versa. The feedback process will be continued until the transition from normal discharge to abnormal discharge. These results can be basic data for the development of plasma sources to treat liquids.

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Section: Introductionmentioning

confidence: 99%

Mutual Interaction between Plasma Characteristics and Liquid Properties in AC-driven Pin-to-Liquid Discharge

Yoon¹,

Jeon²,

Yi³

et al. 2018

Sci Rep

Self Cite

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“…Furthermore, it is worth noting that plasma-based technologies are commonly applied at a small laboratory scale. While numerous studies explore plasma water treatment, few have transitioned to pilot projects [30,44,45]. One of the biggest challenges is scaling this technology.…”

Section: Pfas Degradationmentioning

confidence: 99%

Characterization of a hyperbolic vortex plasma reactor for the removal of aqueous phase micropollutants

Klymenko,

de Kroon,

Agostinho

et al. 2024

J. Phys. D: Appl. Phys.

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The present study focuses on the characterization of a hyperbolic vortex plasma reactor through the comparison of various plasma-atmospheric regimes for the production efficiency of reactive nitrogen (RNS) and reactive oxygen (ROS) species. The research also explores effectiveness in the removal of micropollutants, including pharmaceuticals and per- and polyfluoroalkyl substances (PFAS). The technology includes several degradation mechanisms, such as advanced oxidation, ultraviolet photolysis, ozonation, electrolysis, and shockwave water purification, without the need for additional chemicals. Our results indicate that the plasma of bipolar or "flashover" mode is notably more effective and efficient than both positive or negative polarity. Through the testing of various energy levels, it has been demonstrated that higher energy plasma yields lower efficiency but necessitates shorter treatment times compared to lower energy treatment. When plasma is produced under ambient atmosphere, water chemical properties change significantly in comparison to treatment under argon or nitrogen due to the presence of both oxygen and nitrogen molecules. In a nitrogen atmosphere, the predominant formation is of RNS due to the chemical reactivity of nitrogen exited states, whereas under argon atmosphere, predominantly ROS are generated. Notable advantages of this technology are its scalability and its low energy requirements. The scalability of the technology involves increasing the size of the reactor, the power and electrode count.

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“…An underwater plasma discharge device shown in Fig. 9 was developed in [74] using 12 2mm-tungsten capillary electrodes inserted into a reactor to degrade 10-50 µm microorganisms (Tetraselmis suecica, Nauplius, Thalassiosira sp., Skeletonema sp., Biddulpia sp.) and heterotrophic, E. coli, intestinal enterococci and Vibrio cholera O1, O139 bacteria in ship's ballast water.…”

Section: E Cyanobacteria Cells Destructionmentioning

confidence: 99%

A Review of Pulsed Power Systems for Degrading Water Pollutants Ranging From Microorganisms to Organic Compounds

2019

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Water quality improvement and collecting safe water are two of the paramount concerns in today's world. Numerous water treatment and pollutant removal processes are introduced that vary with the type of pollutants. Among the proposed pollutant degradation methods, pulsed power is one of the effective methods that can be applied not only to degrade a wide range of contaminants but also to address the environmental issues associated with water treatment chemicals. The effectiveness of the pulsed power technology in water treatment was studied for a wide range of pollutants including microorganisms, nutrient pollution, emerging pollutants, and organic pollutants. This paper presents a review of pulsed power systems developed for organic and inorganic pollutants degradation in different water treatment applications. Also, it presents the effectiveness of several factors like the electrical characteristics of the pulse voltages and treatment time on degradation rates of different pollutants.

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Ballast Water Treatment Test at Pilot-Scale Using an Underwater Capillary Discharge Device

Cited by 8 publications

References 23 publications

Mutual Interaction between Plasma Characteristics and Liquid Properties in AC-driven Pin-to-Liquid Discharge

Mutual Interaction between Plasma Characteristics and Liquid Properties in AC-driven Pin-to-Liquid Discharge

Characterization of a hyperbolic vortex plasma reactor for the removal of aqueous phase micropollutants

A Review of Pulsed Power Systems for Degrading Water Pollutants Ranging From Microorganisms to Organic Compounds

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