Journal
APPLIED PHYSICS LETTERS
Volume 91, Issue 12, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.2783209
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Intense microwaves are injected from a slot antenna into water partly filling a metal vessel. When the vessel is evacuated to saturated vapor pressure (similar to 5x10(3) Pa) of water, microwave breakdown gives rise to plasmas in many bubbles in the boiling water. Gas bubbling technique enables production of multibubble plasmas in water even at atmospheric pressure. Optical emissions from the exited species are investigated to identify radical species in water. In order to demonstrate application to purification of polluted water, methylene blue and trichlorethylene solution in 8 l water were observed to rapidly decrease with multibubble plasma treatment. (c) 2007 American Institute of Physics.
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