Yield of hydrogen peroxide, ozone and nitrite nitrogen with DBD arrays in water mist spray

Chen, Bingyan; Gan, Yulin; Yeqian, Wu; Zhu, Caichao; Fei, Juntao; Zhou, Feng; Wang, Jingyi; Jiankun, Wang

doi:10.1109/plasma.2015.7179539

Cited by 2 publications

(3 citation statements)

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“…From Fig. 6, it can be seen that small peaks of •OH were recorded at 295-320 nm and corresponded with previous observations [33]. Emissions from N2 and excited species of N2 exhibited distinct peaks in the UV region and were the highest peaks recorded [34].…”

Section: Comparison Between Ozonation and Ntp Reactorsupporting

confidence: 86%

Degradation of 4-chlorophenol in aqueous solution by dielectric barrier discharge system: effect of fed gases

Hasani

Khani

Karimaei

et al. 2019

J Environ Health Sci Engineer

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A dielectric barrier discharge system with a discharging zone where degradation processes happen is designed to remove 4chlorophenol from water. The removal of 4-chlorophenol was influenced by the processing parameters such as gas flow rate, flow ratio of oxygen and argon, applied voltage and total applied power. Increasing the power or gas flow rates within a certain range enhanced the removal efficiency. 99% of 4-chlorophenol was removed in 6.5 min at reactor's efficient point which is set by adjusting the flow ratio of introduced gases and voltage. The removal percent was about 95% at 5 min of non-thermal plasma treatment with peak voltage of 10 kV and oxygen and argon flow rate of 20 SCCM and 200 SCCM respectively. Then by adjusting the flow ratios in order to find the optimum point. At this point the efficiency reached its peak due to excessive introduction oxygen gas which results in production of more oxidative agents. HPLC and GC-MS analysis have been carried out in order to investigate the by-products of degradation process. After 6.5 min of treatment at efficient point of degradation reactor, a 64% decrease in COD index has been indicated.Keywords Dielectric barrier discharge . Non-thermal atmospheric plasma . 4-chlorophenol . AOP . Endocrine disruptors . Plasma in liquids * Babak Shokri

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Section: Comparison Between Ozonation and Ntp Reactorsupporting

confidence: 86%

Degradation of 4-chlorophenol in aqueous solution by dielectric barrier discharge system: effect of fed gases

Hasani

Khani

Karimaei

et al. 2019

J Environ Health Sci Engineer

View full text Add to dashboard Cite

show abstract

“…Atomic nitrogen radiates at 745 nm and N 2 as the other important reactive particle is detected in the range of 320-400 nm [11,12]. Ultraviolet peaks are at 364.5, 388.5, 388.9, and 397 nm and the peaks of NO are at 296, 357.7, and 378.9 nm [13]. Such waves are radiated due to collisions between electron and neutral species.…”

Section: Spectroscopy Of G Arc Plasmamentioning

confidence: 99%

“…Typical wavelength of OH radical emission is between 309 and 317.8 nm [13]. They are one of the most effective elements in the sterilization process because they can easily penetrate into the membrane of the Fig.…”

Section: Spectroscopy Of G Arc Plasmamentioning

confidence: 99%

Water treatment by the AC gliding arc air plasma

2017

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In this study, the effects of gliding arc (G Arc) plasma system on the treatment of water have been investigated experimentally. An AC power supply of 15 kV potential difference at 50 Hz frequency was employed to generate plasma. Plasma density and temperature were measured using spectroscopic method. The water was contaminated with staphylococcus aureus (Gram-positive) and salmonella bacteria (Gram-negative), and Penicillium (mold fungus) individually. pH, hydrogen peroxide, and nitride contents of treated water were measured after plasma treatment. Decontamination of treated water was determined using colony counting method. Results indicate that G Arc plasma is a powerful and green tool to decontaminate water without producing any byproducts.

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Yield of hydrogen peroxide, ozone and nitrite nitrogen with DBD arrays in water mist spray

Cited by 2 publications

References 0 publications

Degradation of 4-chlorophenol in aqueous solution by dielectric barrier discharge system: effect of fed gases

Degradation of 4-chlorophenol in aqueous solution by dielectric barrier discharge system: effect of fed gases

Water treatment by the AC gliding arc air plasma

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