Improving the efficiency of a water-treatment system based on water cavitation and plasma using a nozzle-less reactor

Satoshi Ihara, Hiroki Nishiyama, Takashi Matsunaga, Yuuki Yoshida, Yuka Tokuyama, Hiroaki Terato

Research output: Contribution to journalArticle


This study has been carried out to achieve high energy efficiency for a water purification method using a plasma generation with cavitation bubbles. In the method proposed herein, the pressure loss in the water flow path of the treatment reactor is reduced by removing the nozzle for the generation of cavitation. Cavitation bubbles can be generated between the electrodes installed in the flow path by adjusting the water flow rate. With and without nozzle, a similar degree of Escherichia coli sterilization was achieved. In the proposed system, the power consumption of the pump was reduced by removing the nozzle, and as a result, the total power consumption of the apparatus could be reduced.

Original languageEnglish
Article number045005
JournalAIP Advances
Issue number4
Publication statusPublished - Apr 1 2019
Externally publishedYes


ASJC Scopus subject areas

  • Physics and Astronomy(all)

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