Skip to main content
. 2015 Sep 25;10(9):e0139263. doi: 10.1371/journal.pone.0139263

Fig 6. Measurement of temperature and pH in water after ozone or arc discharge plasma treatment.

Fig 6

A. Temperature of water after treatment with arc discharge plasma. Arc plasma was discharged at 10 kV and 12 Hz for 0.5, 1, 5, and 10 min or at 10 kV and different frequencies (6, 9, 12 Hz) for 30 min. B. pH of water after treated with ozone or arc discharge plasma for indicated time. Ozone injection rate was 1 lpm. Arc plasma was discharged at 10 kV and 12 Hz for 0.5, 1, 5, and 10 min or at 10 kV and different frequencies (6, 9, 12 Hz) for 30 min.