DECOMPOSITIONOFDYE INWATER SOLUTIONBYPULSEDPOWER DISCHARGEINA WATER DROPLETSSPRAY

forwastewater treatment. Theelectrical discharges, e.g., pulsed corona discharges produce ozone, freeradicals, A methodfordecomposing dyeby spraying waterultraviolet radiation, andshockwaves inwater that canbe solution ofdyeinto non-equilibrium plasma ingasphase utilized foramoreeffective water treatment [3]-[5]. Since wasinvestigated using pulsed-corona discharge reactor. A thebreakdown voltage inwaterismuchhigher thanthat corona reactor usedconsists ofadischarge wireanda inair, alarge powersupply aswellasacomplex and cylindrical electrode. Watersolution ofindigo carmineexpensive pulse forming network arerequired. witha concentration of20mg/Lwassprayed intothe Inthis study, apulsed coronadischarge reactor isused reactor fromashowerhead. Thesprayed watersolutiontoproducenon-thermal plasmain gasphaseand wascirculated intothereactor. Thedependence ofthe wastewater issprayed intotheplasma fortreatment [6]. discharging powerinjected intothereactor on the Thissystem combines theadvantages ofusing small, decomposition rates ofchromogenic bondandunsaturated simple, andinexpensive powersupply andpulse forming bondinindigo carmine wasinvestigated. Indigo bluewas network forelectrical discharges inairandofdirectly decolored by1.5minutes circulation forthedischarging utilizing ozone, aswellasfreeradicals andultraviolet powerof2W. Theresult ofNMR spectrometry showed radiations fortreating thewastewater. Indigo carmine that indigo carmine wasdecomposed completely by60- (C18H8N2Na2O8S2), whichisusedascoloring agent infood, minutes treatment. The chromogenic bondandthe wasselected asthedyeinwater. unsaturated bondwerealmost decomposed at9J/mgand 360J/mg,respectively. As thedischarging power