Generation of Radicals using Discharge inside Bubbles in Water for Water Treatment

A new method for a water treatment utilizing radicals produced by a discharge inside bubbles in water is proposed. Radicals with short lifetime (atomic oxygen and OH radical) are used effectively for the water purification because those are generated by discharge inside bubbles in water. OH radical...

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Bibliographic Details
Published inOzone: science & engineering Vol. 24; no. 6; pp. 471 - 477
Main Authors Miichi, Tomoaki, Hayashi, Nobuya, Ihara, Satoshi, Satoh, Saburoh, Yamabe, Chobei
Format Journal Article
LanguageEnglish
Published Philadelphia, PA Taylor & Francis Group 2002
Taylor & Francis
Subjects
Applied sciences
Atomic Oxygen
Discharge inside Bubbles in Water
Drinking water and swimming-pool water. Desalination
Exact sciences and technology
Hydroxyl Radical Formation
Ozone
Pollution
Pulsed Ozone Generation
Water treatment and pollution
Ozonization
Water treatment
Bubble
Generation
Oxidation
Experimental study
Electric discharge
Hydroxyl
Free radical
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Summary:A new method for a water treatment utilizing radicals produced by a discharge inside bubbles in water is proposed. Radicals with short lifetime (atomic oxygen and OH radical) are used effectively for the water purification because those are generated by discharge inside bubbles in water. OH radical production was confirmed by a light emission of the discharge using the spectroscopic technique. Dissolved ozone concentration of about 0.3 mg/1 was obtained when oxygen was used as a bubbling gas. Decolorization process of indigo solution by a discharge inside bubbles in water was investigated.
ISSN:0191-9512
1547-6545
DOI:10.1080/01919510208901636