New prototype for the treatment of falling film liquid effluents by gliding arc discharge part I: Application to the discoloration and degradation of anthraquinonic Acid Green 25

Ghezzar, Mouffok Rédouane; Saïm, Nacéra; Belhachemi, S.; Abdelmalek, Fatiha; Addou, A.

doi:10.1016/j.cep.2013.06.007

Cited by 12 publications

(2 citation statements)

References 43 publications

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“…Until now, various types of non-thermal plasma devices such as plasma jets [21,22], plasma needle [23][24][25], gliding arc [26,27], dielectric barrier discharge [28,29], pulsed corona discharges [30,31] have been developed. These systems have strong oxidizing ability and include simple feed conditions such as temperature and atmospheric pressure.…”

Section: Introductionmentioning

confidence: 99%

“…These systems have strong oxidizing ability and include simple feed conditions such as temperature and atmospheric pressure. During the treatment, various complex chemical reactions (collision, addition, dissociation and transformation reactions) can be initiated in the polluted solution [26]. Among above mentioned types of non-thermal plasma devices, plasma needle may be easily operated under atmospheric pressure and room temperature and do not require expensive vacuum systems.…”

Section: Introductionmentioning

confidence: 99%

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Atmospheric Plasma Supported by TiO2 Catalyst for Decolourisation of Reactive Orange 16 Dye in Water

Mitrović¹,

Tomić

Djukić‐Vuković

et al. 2020

Waste Biomass Valor

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Purpose Every advanced oxidation process (AOP) has its limitations in water purification. Novel designs with simultaneous application of different AOPs can offer better solutions for cleaner water. Methods We have comparatively studied two advanced oxidation processes (AOPs) on decolourisation of Reactive Orange 16 (RO 16) azo dye pollutant from water: gas plasma treatment by low power atmospheric pressure plasma using novel plasma needle configuration, and semiconductor heterogeneous photocatalysis using titanium dioxide (TiO 2 ) nanopowders. Additionally, simultaneous application of two advanced oxidation processes on azo dye decolourisation was studied. Results It was found that plasma treatment is very efficient system for the dye removal even for low flow rates (1 slm) of the Ar as feed gas. The presence of 10% of O 2 in Ar flow intensified dye oxidation process and shortened required time for total decolourisation. When plasma and catalyst were simultaneously applied, TiO 2 was activated with a few Watts plasma source as well as 300 W UV lamp source. The synergic effect of two AOPs was more pronounced for higher feed gas flow rates, resulting in improved decolourisation efficiency. Conclusion Plasma needle can efficiently remove Reactive Orange 16 azo dye from water with a power consumption of only few Watts. With the addition of TiO 2 the removal efficiency is significantly improved.

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