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Characteristics of underwater plasma with surfactant

Hiroki Goto, Tatsuya Sakoda · Electrical Engineering in Japan · 2018

AbstractTo investigate purification characteristics of water containing surfactant by using an underwater plasma source with a porous glass membrane, which functioned in bubble supply and the formation of micro‐discharges, we first observed the bubble diameter, the ascent velocity of bubbles, and discharges. We also examined the influence of surfactant on the generation of OH radicals. It was found that the existence of surfactant made the sterilization effect higher and that Bacillus subtilis spores could be effectively sterilized.

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