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Summary form only given. Aqueous environments are susceptible to contamination by bacteria, protozoa and viruses, which are the root cause of various illnesses. These contaminations are usually treated by chemical methods. Recently, attempts have been made to inactivate bacteria in water with non-thermal plasmas using various approaches, e.g., a pulsed streamer discharge plasma or a gliding arc discharge...
Summary form only given. Environmental applications of pulsed electrical discharge for water sterilization, decoloration, and decontamination are based on the generation of ozone, hydrogen peroxide, O, H and OH radicals and other chemically active species. This study investigates water purification and the production of active species by a pulsed electrical discharge in water in the presence of gas...
Summary form only given. Electrical discharges in gas bubbles in water are investigated by applying microsecond long rectangular pulses of 6-20 kV to needle-to-plane electrodes submerged in water. Ar or O2 bubbles; 1-5 mm in diameter, are introduced through the Pt needle that serves as the negative electrode. A bubble remains on the needle through numerous discharge processes. The voltage across the...
Summary form only given. Electrical discharges in gas bubbles in water are investigated by applying microsecond long rectangular pulses of 10-20 kV to needle-to-plane electrodes submerged in water. Gas is bubbled into the water through the high voltage Pt needle electrode. The voltage across the electrodes and the current to the ground are measured. Electrical measurements suggest that a corona-type...
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