Organic pollutants removal from aqueous solutions by surface gliding discharges
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2021-07-24 15:09
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DIRLAU, Iuliana-Delicia; BENIUGA, Oana; BURLICA, Radu; BENIUGA, Razvan. Organic pollutants removal from aqueous solutions by surface gliding discharges. In: Central and Eastern European Conference on Thermal Analysis and Calorimetry. Editia 4, 28-31 august 2017, Chişinău. Germany: Academica Greifswald, 2017, p. 176. ISBN 978-3-940237-47-7.
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Central and Eastern European Conference on Thermal Analysis and Calorimetry
Editia 4, 2017
Conferința "Central and Eastern European Conference"
4, Chişinău, Moldova, 28-31 august 2017

Organic pollutants removal from aqueous solutions by surface gliding discharges


Pag. 176-176

Dirlau Iuliana-Delicia, Beniuga Oana, Burlica Radu, Beniuga Razvan
 
Gheorghe Asachi Technical University of Iasi
 
Disponibil în IBN: 25 septembrie 2019


Rezumat

The aims of this present paper are the study of the removal of organic pollutants from aqueous solutions. To achieve this goal, the polluted solutions were treated with non-thermal surface gliding plasma discharges (SDG). The surface gliding discharges (SDG) are generating d by an electrical discharge gliding over a water surface as known as “liquid film”. In the SGD reactors the thin film are formed by a lot of numbers of small droplets obtained by spraying the treated solution in the plasma generated in air and argon, as carrier gas. The spayed solution droplets enhance the surface contact between treated solution and the plasma generated by discharge. In order to assess the pollutant removal of non-thermal plasma, the discolouring of an organic water soluble pigment (e.g. Direct Green 26) was investigated. The effect of NTP treatment on the examined solutions is the permanent discolouring process. In the treated solution, in the same time with the discoloration of Green 26 dye, the evolution of PH, conductivity and another reactive species like hydrogen peroxide or nitrates, in the treated solution have been determined. The influences of solution flow rate, nature of the gas, for the same voltage applied to the SGD reactor have been investigated. The paper also presents the influence of temperature on pollutant degradation precess. The non-thermal plasma technology is efficient solution in eliminating organic pollutants from water.