Spectroscopic measurements of discharges inside bubbles in water

Miichi, T Ihara, S Satoh, S Yamabe, C

T. Miichi et al., Spectroscopic measurements of discharges inside bubbles in water, VACUUM, 59(1), 2000, pp. 236-243

7

INGLESE

Article

Apllied Physucs/Condensed Matter/Materiales Science","Material Science & Engineering

VACUUM

0042-207X → ACNP

59

1

2000

236 - 243

ISI

0042-207X(200010)59:1<236:SMODIB>2.0.ZU;2-1

In the present research, a new method for a water treatment utilizing the d ischarge of bubbles in water is proposed. The radicals with short lifetime can be effective for water purification because the discharge is expected t o occur inside the bubbles in water. Magnetic-pulse-compression pulsed-powe r generator was used as a repetitive power supply. The bubbles generated by a bubbling tube were passed through a discharge region between the electro des. In this phase of the experiment, argon was used as a bubbling gas. The experimental results showed that a discharge was generated inside the bubb les in water by the mentioned pulsed-power generator. Simultaneously, measu rements of the excited OH radical emission were carried out using a spectro scopic technique. The repetition rate of pulsed-power generator, the peak v alue of applied voltage and the gap length were 100 pps (pulse per second), 20 kV and 7.5 mm, respectively. (C) 2000 Elsevier Science Ltd. All rights reserved.