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High Temperature Material Processes: An International Quarterly of High-Technology Plasma Processes
SJR: 0.137 SNIP: 0.341 CiteScore™: 0.43

ISSN Imprimir: 1093-3611
ISSN En Línea: 1940-4360

High Temperature Material Processes: An International Quarterly of High-Technology Plasma Processes

DOI: 10.1615/HighTempMatProc.v14.i1-2.70
pages 89-94

AZO-DYE ORANGE II DEGRADATION IN PLASMA TORCH WITH GERDIEN ARC

M. Hlina
Institute of Plasma Physics, ASCR,, Za Slovankou 3, Prague 8
J. Domlatil
Institute of Chemical Technology Prague, Technicka 5, 166 05 Prague 6
Vlastimil Brozek
Institute of Chemical Technology, Technicka 5, CZ-16628 Prague; Institute of Plasma Physics, ASCR, Za Slovankou 3,182 00 Prague 8
Milan Hrabovsky
Institute of Plasma Physics, Academy of Sciences Za Slovankou 3, 182 00, Prague

SINOPSIS

There is increasing interest for the degradation of organic compounds in contaminated and polluted waters. This paper deals with utilization of Gerdien arc for this purpose. The arc is generated in a plasma torch and is hybridly stabilized by water and argon. Gerdien arc features very high plasma temperatures and thus high intensity of short wave ultraviolet radiation. Water (for the arc stabilization) flows at the flow rate of 20 l.min−1 in a thin layer around the arc column. Thus, all water flowing through the torch passes the positions with high level of ultraviolet radiation. Azo-dye Orange II was used as a model organic compound. The certain amount of the dye was dissolved in a 40 l water system tank before every experiment. Degradation of the dye took place with high efficiency so that the fast decrease of a dye concentration during first minutes of experiments was observed. Measurements were done by means of UV/Vis spectroscopy and analyses of total carbon, total organic carbon, and total inorganic carbon.


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