EUROPEAN COOPERATION IN SCIENCE AND TECHNOLOGY COST Action TD1208 www.cost.eu Electrical discharges with liquids for future applications Laboratory for Physics and Technology of Plasma University of Belgrade- Faculty of Physics Milorad M. Kuraica kuki@ff.bg.ac.rs Studentski trg 12, 11000 Belgrade, Serbia www.ff.bg.ac.rs Studied topics a) I [mA] Development of plasma-liquid system based on dielectric barrier discharge (DBD): water falling film DBD reactor. In this reactor water/liquid is a part of the discharge electrode configuration and its interaction with atmospheric pressure plasma generated in different gases (air, N2, O2, He, Ar ) has been studied. (WG2) Diagnostics of water falling film DBD: - Electrical measurements and emission spectroscopy: analyses of influence of water film on electrical characteristics of the discharge and excited species in emission spectra. - Study of the active chemical species formation in liquid phase (O3, OH, H2O2, NO2-, NO3-, pH, conductivity, oxidation power). - Study of the discharge products in the gaseous phase with and without water film (FTIR, absorption spectroscopy, gas analyzer) Applications of water falling film DBD in water treatment, advanced oxidation processes, plasma- catalytic processes and biomedicine (WG4): - Degradation of phenols, chlorophenols, reactive textile dyes, pesticides, pharmaceutical compounds - Removal of arsenic from potable water - Inactivation of microorganisms in liquids - Exhaust gas treatment with plasma-assisted scrubbing Study of helium DBD plasma jet- a significant plasma source for biomedical applications and surface treatment. (WG2, WG4) Diagnostics of He plasma jet: - Electrical measurements - Spectroscopic measurement of electric field - Spatial distribution and time development of some excited species Concentration of •OH measured in water treated in different gases 6 4 2 Glass tube 5 2E1 z [mm] 1E2 5E2 10 2E3 1E4 15 5E4 20 Grounded electrode 78 80 82 84 86 88 90 92 94 t [s] Space-time development of He 706 nm line b) He plasma jet Water falling film DBD reactor a) side and b) top view photo COST is supported by the EU RTD Framework Programme Electric field development in plasma jet ESF provides the COST Office through an EC contract EUROPEAN COOPERATION IN SCIENCE AND TECHNOLOGY COST Action TD1208 www.cost.eu Electrical discharges with liquids for future applications Main experimental/computational facilities 1-m spectrometer (SOLAR TII, model MSDD1000) with 1200- and 2400-g/mm diffraction gratings 1-m spectrometer (Minuteman) with 1200 g/mm diffraction grating ICCD (PI-MAX2, Princeton Instruments) with 256 x 1024 pixels ICCD (PI-MAX2, Princeton Instruments) with 1024 × 1024 pixels Gas analyzer (MRU VarioPlus Industrial) with sensors for NO, NO2, SO2, O2, CO, CO2 In the procurement process: GC/MSD/FID and FTIR spectrometer for gas, liquids and solid analysis Main research collaborations and industrial partners University of Belgrade- Faculty of Chemistry, www.chem.bg.ac.rs University of Belgrade- Faculty of Technology and Metallurgy, www.tmf.bg.ac.rs Ernst Moritz Arndt University of Greifswald, www.uni-greifswald.de The Leibniz Institute for Plasma Science and Technology (INP Greifswald), www.inp-greifswald.de Institute of Physics B.I. Stepanov, National Academy of Sciences of Belarus, www.ifanbel.bas-net.by The Faculty of Electrical Engineering and Communication, Brno University of Technology, www.feec.vutbr.cz Queensland University of Technology (QUT), Brisbane, Australia, www.qut.edu.au „Powerplants Nikola Tesla“ doo Obrenovac, www.tent.rs/en Main publications Kuraica Milorad M,Obradović Bratislav M,Manojlović Dragan D,Ostojić Daliborka R,Purić Jagos M (2004) Ozonized water generator based on coaxial dielectric-barrier-discharge in air, VACUUM, 73, 3-4, pp. 705-708 Manojlović Dragan D,Ostojić Daliborka R,Obradović Bratislav M,Kuraica Milorad M,Krsmanović Vojin D,Purić Jagos M (2007) Removal of phenol and chlorophenols from water by new ozone generator, DESALINATION, 213, 1-3, pp. 116122 Manojlović Dragan D,Popara Ana,Dojčinović Biljana P,Nikolić Aleksandar S,Obradović Bratislav M,Kuraica Milorad M,Purić Jagos M (2008) Comparison of two methods for removal of arsenic from potable water, VACUUM, 83, 1, pp. 142-145 Dojčinović Biljana P,Roglić Goran M,Obradović Bratislav M,Kuraica Milorad M,Kostić Mirjana M,Nesić Jelena, Manojlović Dragan D (2011) Decolorization of reactive textile dyes using water falling film dielectric barrier discharge, JOURNAL OF HAZARDOUS MATERIALS, 192, 2, pp. 763-771 Sretenović Goran B,Krstić Ivan B,Kovačević Vesna V,Obradović Bratislav M,Kuraica Milorad M (2011) Spectroscopic measurement of electric field in atmospheric-pressure plasma jet operating in bullet mode, APPLIED PHYSICS LETTERS, 99, 16. Sretenović Goran B, Krstić Ivan B, Kovačević Vesna V, Obradović Bratislav M, Kuraica Milorad M (2012) Spectroscopic Study of Low-Frequency Helium DBD Plasma Jet, IEEE Transactions on Plasma Science, 40, 6327682 , pp. 2870-2878 M. Jović, D. Manojlović, D. Stanković, B. Dojčinović, B. Obradović, U. Gašić, G. Roglić (2013) Degradation of triketone herbicides, mesotrione and sulcotrione, using advanced oxidation processes, JOURNAL OF HAZARDOUS MATERIALS, 260, pp. 1092–1099. Decolorization of reactive textile dye solutions Inactivation of microorganisms Degradation of 4-chlorophenol 100 70 60 50 40 intial pH= 9.00, after 5 min intial pH= 7.00, after 5 min intial pH= 5.00, after 5 min intial pH= 9.00, after 24h intial pH= 7.00, after 24h intial pH= 5.00, after 24h 30 20 10 0 0 18 36 54 72 90 Energy density (kJ/L) COST is supported by the EU RTD Framework Programme 108 126 Photograph of S. aureus control sample (left) and sample after 1min of direct plasma treatment (right) 10 10 E. coli suspension directly treated in plasma S. aureus suspension directly treated in plasma 9 10 8 10 7 10 6 10 5 10 4 10 3 10 2 10 detection limit 1 10 0 10 0 2 4 6 8 10 Treatment time in plasma [min] 100 90 80 70 60 50 40 30 20 10 0 4-Chlorophenol [mg/L] Decolorization % 80 number of viable microorganisms [cfu/ml] Reactive Black 5 90 DBD DBD + H2O2 DBD + TiO2 DBD + Fe 0 2+ 18 36 54 72 90 108 126 144 Energy density [kJ/L] ESF provides the COST Office through an EC contract