OH Production Enhancement in Bubbling Pulsed Discharges

Journal Article · Wed Oct 13 00:00:00 EDT 2010 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3508527· OSTI ID:21428629

Lungu, Cristian P; Porosnicu, Corneliu; Jepu, Ionut; Chiru, Petrica; Zaroschi, Valentin; Lungu, Ana M ^[1]; Saito, Nagahiro; Bratescu, Maria; Takai, Osamu ^[2]; Velea, Theodor; Predica, Vasile ^[3]

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1. National Institute for Laser, Plasma and Radiation Physics, Bucharest, 077125 (Romania)
2. Ecotopia Science Institute, Nagoya University, Nagoya, 464-8603 (Japan)
3. R and D National Institute for Nonferous and Rare Metals, Pantelimon, Jud. Ilfov, 077145 (Romania)

The generation of active species, such as H{sub 2}O{sub 2}, O{sup *}, OH*, HO{sub 2}*, O{sub 3}, N{sub 2}{sup *}, etc, produced in aqueous solutions by HV pulsed discharges was studied in order to find the most efficient way in waste water treatment taking into account that these species are almost stronger oxidizers than ozone. Plasma was generated inside gas bubbles formed by the argon, air and oxygen gas flow between the special designed electrodes. The pulse width and pulse frequency influence was studied in order to increase the efficiency of the OH active species formation. The produced active species were investigated by optical emission spectroscopy and correlated with electrical parameters of the discharges (frequency, pulse width, amplitude, and rise and decay time).

• OSTI ID: 21428629
• Journal Information: AIP Conference Proceedings, Vol. 1282, Issue 1; Conference: 7. international symposium on applied plasma science, Hamburg (Germany), 31 Aug - 4 Sep 2009; Other Information: DOI: 10.1063/1.3508527; (c) 2010 American Institute of Physics; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
AQUEOUS SOLUTIONS
ARGON
BUBBLES
ELECTRIC DISCHARGES
ELECTRODES
EMISSION SPECTROSCOPY
GAS FLOW
HYDROGEN PEROXIDE
IONIZATION
OXIDIZERS
OXYGEN
OZONE
PLASMA
PLASMA PRODUCTION
PULSES
SHOCK WAVES
WASTE WATER
WATER TREATMENT
DISPERSIONS
ELEMENTS
FLUID FLOW
FLUIDS
GASES
HOMOGENEOUS MIXTURES
HYDROGEN COMPOUNDS
LIQUID WASTES
MIXTURES
NONMETALS
OXYGEN COMPOUNDS
PEROXIDES
RARE GASES
SOLUTIONS
SPECTROSCOPY
WASTES
WATER