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Cavitational Hydrothermal Oxidation: A New Remediation Process.

DE200313503

Publication Date	2002
Personal Author	Suslick, K. S.
Page Count	8
Abstract	During the past year, we have continued to make substantial scientific progress on our understanding of cavitation phenomena in aqueous media and applications of cavitation to remediation processes. Our efforts have focused on three separate areas: sonoluminescence as a probe of conditions created during cavitational collapse in aqueous media, the use of cavitation for remediation of contaminated water, and an addition of the use of ultrasound in the synthesis of novel heterogeneous catalysts for hydrodehalogenation of halocarbons under mild conditions. In order to gain further understanding of the conditions present during cavitation, we have continued our studies of sonoluminescence. We have made recent breakthroughs in the use of emission spectroscopy for temperature and pressure measurement of cavitation events, which we expect to publish shortly. We have been able to measure for the first time the temperature of cavitation in water during multibubble cavitation in the presence of aromatic hydrocarbons. The emission from excited states of C(2) in water gives temperatures that are consistent with adiabatic compressional heating, with maximum temperatures of 4300 K.
Keywords	Radioactive wastes Decommissioning Decontamination Progress report Bubbles Fluid mechanics Sound waves Chemical wastes Remedial action
Source Agency	Technical Information Center Oak Ridge Tennessee
NTIS Subject Category	77G - Radioactive Wastes & Radioactivity 77F - Radiation Shielding, Protection, & Safety 68D - Water Pollution & Control 41 - Manufacturing Technology
Corporate Authors	Illinois Univ. at Urbana-Champaign. Dept. of Chemistry.; Department of Energy, Washington, DC.
Supplemental Notes	Sponsored by Department of Energy, Washington, DC.
Document Type	Technical Report
NTIS Issue Number	200321

Cavitational Hydrothermal Oxidation: A New Remediation Process.

Cavitational Hydrothermal Oxidation: A New Remediation Process.
DE200313503

Publication Date	2002
Personal Author	Suslick, K. S.
Page Count	8
Abstract	During the past year, we have continued to make substantial scientific progress on our understanding of cavitation phenomena in aqueous media and applications of cavitation to remediation processes. Our efforts have focused on three separate areas: sonoluminescence as a probe of conditions created during cavitational collapse in aqueous media, the use of cavitation for remediation of contaminated water, and an addition of the use of ultrasound in the synthesis of novel heterogeneous catalysts for hydrodehalogenation of halocarbons under mild conditions. In order to gain further understanding of the conditions present during cavitation, we have continued our studies of sonoluminescence. We have made recent breakthroughs in the use of emission spectroscopy for temperature and pressure measurement of cavitation events, which we expect to publish shortly. We have been able to measure for the first time the temperature of cavitation in water during multibubble cavitation in the presence of aromatic hydrocarbons. The emission from excited states of C(2) in water gives temperatures that are consistent with adiabatic compressional heating, with maximum temperatures of 4300 K.
Keywords	Radioactive wastes Decommissioning Decontamination Progress report Bubbles Fluid mechanics Sound waves Chemical wastes Remedial action
Source Agency	Technical Information Center Oak Ridge Tennessee
NTIS Subject Category	77G - Radioactive Wastes & Radioactivity 77F - Radiation Shielding, Protection, & Safety 68D - Water Pollution & Control 41 - Manufacturing Technology
Corporate Authors	Illinois Univ. at Urbana-Champaign. Dept. of Chemistry.; Department of Energy, Washington, DC.
Supplemental Notes	Sponsored by Department of Energy, Washington, DC.
Document Type	Technical Report
NTIS Issue Number	200321