Presentation Information
[9p-PB9-5]Influence of the dV/dt of rectangular applied voltage waveforms
on the decomposition efficiency of methylene blue using a microplasma contactor
〇Yusei Sakiyama1, Takeomi Sawa1, Jun-Seok Oh1, Motoko Takaoka2, Tatsuru Shirafuji1 (1.Osaka Metropol Univ., 2.Kobe Coll.)
Keywords:
plasma,liquid treatment
To improve the efficiency of liquid treatment using atmospheric-pressure low-temperature plasma, the dependence of methylene blue (MB) decomposition on the voltage rise rate (dV/dt) was systematically investigated using a microplasma contactor. The energy efficiency decreased with increasing dV/dt, while the decomposition amount saturated above approximately 10 kV/µs. These results suggest insufficient utilization of reactive species. The effect of bubble-induced stirring on the dV/dt dependence of MB decomposition efficiency will also be discussed.