Microwave Plasma Jet in Water: Characterization and Feasibility to Wastewater Treatment

Hamdan, Ahmad; Liu, Jing‐Lin; Suk, Min

doi:10.1007/s11090-018-9918-y

Cited by 36 publications

(41 citation statements)

References 43 publications

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“…The long-time exposure of the sharp needle to high electric field results in the corrosion of electrodes (Sunka et al, 1999). Hamdan, Liu, and Cha (2018) observed electrode corrosion during in-liquid spark or streamer discharges generated by nanopulsed corona discharges. Wu et al (2012Wu et al ( , 2017 reported the presence of Cu + and Cu 2+ ions in the activated water while using a copper electrode in plasma microjet ( Figure 3D) powered either by a DC negative-polarity high-voltage power supply or by a 0.35 A and 100 kV power supply.…”

Section: System Configurationmentioning

confidence: 99%

“…Hamdan, Liu, and Cha () observed electrode corrosion during in‐liquid spark or streamer discharges generated by nano‐pulsed corona discharges. Wu et al.…”

Section: Ntp–liquid Interactionsmentioning

confidence: 99%

“…In the presence of nitrogen, NO and NO 2 are formed, which inhibits the consumption of OH radicals to form H 2 O 2 . Instead, it reacts with H 2 O 2 through the backward reactions (pathways 4 and 5) and produces • OH, which increases the redox potential of PAW (Hamdan et al., ).

{normalH}_{2} {normalO}_{2} + NO \to HN {normalO}_{2} + OH

{normalH}_{2} {normalO}_{2} + N {normalO}_{2} \to HN {normalO}_{3} + OH

…”

Section: Ntp–liquid Interactionsmentioning

confidence: 99%

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Nonthermal Plasma–Liquid Interactions in Food Processing: A Review

Perinban

Orsat

Raghavan

2019

Comp Rev Food Sci Food Safe

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Nonthermal processing methods are often preferred over conventional food processing methods to ensure nutritional quality. Nonthermal plasma (NTP) is a new field of nonthermal processing technology and seeing increased interest for application in food preservation. In food applications of NTP, liquid interactions are the most prevalent. The NTP reactivity and product storability are altered during this interaction. The water activated by NTP (plasma‐activated water [PAW]) has gained considerable attention during recent years as a potential disinfectant in fruits and vegetable washing. However, detailed understanding of the interactions of NTP reactive species with food nutritional components in the presence of water and their stability in food is required to be explored to establish the potential of this emerging technology. Hence, the main objective of this review is to give a complete overview of existing NTP–liquid interactions. Further, their microbial inactivation mechanisms and the effects on food quality are discussed in detail. Most of the research findings have suggested the successful application of NTP and PAW for microbial inactivation and food preservation. Still, there are some research gaps identified and a complete analysis of the stability of plasma reactive species in food is still missing. By addressing these issues, along with the available research output in this field, it is possible that NTP can be successfully used as a food decontamination method in the near future.

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Section: System Configurationmentioning

confidence: 99%

“…Hamdan, Liu, and Cha () observed electrode corrosion during in‐liquid spark or streamer discharges generated by nano‐pulsed corona discharges. Wu et al.…”

Section: Ntp–liquid Interactionsmentioning

confidence: 99%

{normalH}_{2} {normalO}_{2} + NO \to HN {normalO}_{2} + OH

{normalH}_{2} {normalO}_{2} + N {normalO}_{2} \to HN {normalO}_{3} + OH

…”

Section: Ntp–liquid Interactionsmentioning

confidence: 99%

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Nonthermal Plasma–Liquid Interactions in Food Processing: A Review

Perinban

Orsat

Raghavan

2019

Comp Rev Food Sci Food Safe

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“…Moreover, the electrodeless design circumvents the problem of erosion, and thus, may be effectively used in water treatment applications. More recently, our group has developed a similar setup based on an MWPJ that is submerged in water rather than in‐contact with it . In this setup, the induced chemistry can be finely tuned to target specific pollutants simply by modifying the gas composition of the MWPJ.…”

Section: Introductionmentioning

confidence: 99%

“…In this setup, the induced chemistry can be finely tuned to target specific pollutants simply by modifying the gas composition of the MWPJ. For instance, the addition of a few percents (1–3%) N 2 in Ar gaseous flow significantly enhances the efficiency of degradation of methylene blue (MB) dye . Although the previously reported MWPJs show high potential for water treatment, we believe that the use of long plasma columns, wherein only a small fraction of plasma touches the water surface, is energetically costly, especially considering that in water treatment applications, the active zone is confined to the plasma–water interface where species are exchanged.…”

Section: Introductionmentioning

confidence: 99%

Characterization of a microwave plasma jet (TIAGO) in‐contact with water: Application in degradation of methylene blue dye

Hamdan

Gagnon

Aykul

et al. 2019

Plasma Processes & Polymers

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Plasma in or in‐contact with liquids is a research field that has great potential in the treatment of wastewater. Today, efforts are focused on finding a plasma source that can efficiently remove persistent pollutants from water. In this study, we evaluate the effectiveness of a microwave plasma jet, in TIAGO (Torche à Injection Axiale sur Guide d'Ondes) configuration, using methylene blue (MB) as a model organic contaminant. The assessments conducted herein show that MB degradation is promoted at short nozzle–water distance, high gas flow rate, elevated microwave power, and excessive initial water conductivity (up to 10,000 µS/cm). The plasma characteristics, namely composition, electron density, and OH rotational temperature, as well as water acidity and conductivity are also evaluated.

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New Applications and Trends in the Microwave Plasmas

2022

Microwave Plasma Sources and Methods in Processing Technology

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Microwave Plasma Jet in Water: Characterization and Feasibility to Wastewater Treatment

Cited by 36 publications

References 43 publications

Nonthermal Plasma–Liquid Interactions in Food Processing: A Review

Nonthermal Plasma–Liquid Interactions in Food Processing: A Review

Characterization of a microwave plasma jet (TIAGO) in‐contact with water: Application in degradation of methylene blue dye

New Applications and Trends in the Microwave Plasmas

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