Title :
Removal of organic dye by high-voltage pulsed streamer discharge in gas bubbling water
Author :
Ruma ; Nagaoka, Hideaki ; Yoshihara, Kiyohito ; Hosseini, S.H.R. ; Sakugawa, Takashi ; Akiyama, Hidenori
Author_Institution :
Dept. of Electr. & Electron. Eng., Dhaka Univ. of Eng. & Technol., Gazipur, Bangladesh
Abstract :
This paper details how high-voltage pulsed discharge was generated in water with different types of bubbling gases as well as no gas in a reactor with a point-mesh electrode configuration. Acid orange 7 organic dye solution was treated as wastewater sample to elucidate chemical efficiency of bubbling gas types in discharge reactor. Experimental results showed that, oxygen bubbling gas effectively removed 84.35% of acid orange 7, while corresponding removal rates were 70.40%, 64.67%, 58.36% and 50.81% with argon, air, nitrogen and with no bubbling gas, respectively. Our research clarifies that chemical efficiency of the discharge reactor is significantly influenced by bubbling gases. A magnetic compression pulsed power modulator at 25kV, 100pps was used as a high voltage pulse source to initiate discharge in reactor.
Keywords :
chemical reactors; dyes; high-voltage techniques; pulsed power technology; wastewater treatment; acid orange 7 organic dye solution; air; argon; bubbling gas types; bubbling gases; chemical efficiency; discharge reactor; gas bubbling water; high voltage pulse source; high-voltage pulsed discharge; high-voltage pulsed streamer discharge; magnetic compression pulsed power modulator; nitrogen; organic dye removal; oxygen bubbling gas; point-mesh electrode configuration; wastewater treatment; Argon; Chemicals; Electrodes; Inductors; Nitrogen; Water pollution; Magnetic pulsed compression; acid orange 7; air; argon; bubble; discharge; nitrogen; oxygen; streamer;
Conference_Titel :
Strategic Technology (IFOST), 2014 9th International Forum on
Conference_Location :
Cox´s Bazar
Print_ISBN :
978-1-4799-6060-6
DOI :
10.1109/IFOST.2014.6991178
