The chemical effects of collapsing cavitation bubbles
- Creators
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Hoffmann, M. R.
Abstract
We have been investigating the fundamental chemistry and physics underlying the application of electrohydraulic cavitation as induced by pulsed-power plasma discharge in water, by spark-gap discharge in water (i.e., lithotripsy) and by pulsed (and/ or continuous) ultrasonic irradiation (i.e., sonolysis) of water for the elimination of chlorinated hydrocarbons from water. These three different applications of electric power share a common physical thread, which involves hydraulic cavitation, production of shock waves, release of high energy light, production of hydroxyl radicals, hydrogen atoms, hydrogen peroxide and aquated electrons. The chemical changes of compounds in water pulsed with these different sources of power are induced in part by the violent collapse of cavitation bubbles.
Additional Information
© 1992 IMechE. C453/007 The authors grateful acknowledge the financial support of the EPA (Environmental Protection Agency), DARPA (Defense Advance Research Projects Agency), and EPRI (Electric Power Research Institute). We are indebted to Dr. Richard Ayers of Pulsed Power Technology, Inc. for introducing us to this fascinating technology.Additional details
- Eprint ID
- 59926
- Resolver ID
- CaltechAUTHORS:20150827-104713675
- Environmental Protection Agency (EPA)
- Defense Advanced Research Projects Agency (DARPA)
- Electric Power Research Institute (EPRI)
- Created
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2015-09-09Created from EPrint's datestamp field
- Updated
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2020-03-03Created from EPrint's last_modified field
- Series Name
- Proceedings of the Institution of Mechanical Engineers