Publications

Selected publication  

Pawłat J., Hensel K., Ihara S.: Generation of oxidants and removal of indigo blue by pulsed power in bubbling and foaming systems, Czech. J. Phys. 56, B1174-B1178 (2006).
citations: 5  

Abstract

Generation of dissolved ozone (O3) and hydrogen peroxide (H2O2) in water, bubbling
and foaming systems by a pulse powered electric discharge was studied. The concentrations
of the species in the systems increased with operation time and a pulse repetition rate. In
the foaming column generation of more than 70 mg/l H2O2 was observed after 20 minutes
of discharge operation. The concentration of H2O2 was an order of the magnitude bigger
than in the case of the bubbling column and two orders of the magnitude bigger than in
the case of still water. The highest concentration of dissolved O3 (2.17 mg/l) was obtained
in the bubbling system, after 20 minutes of discharge operation at 90 Hz pulse repetition
rate. Similar results were achieved also in the foaming column. However, the amount of
dissolved ozone in still water was only 0.97 mg/l. Due to the effective overall generation of
the oxidants, the system of foaming column provided the best results also in indigo blue
treatment.