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Proceedings of the 10th International Symposium on Cavitation (CAV2018)

Editor
Joseph Katz
Joseph Katz
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ISBN:
9780791861851
No. of Pages:
1108
Publisher:
ASME Press
Publication date:
2018

Hydrodynamic induced cavitation generates imploding cavitation bubbles which can lead to degradation or even mineralisation of water constituents without addition of any chemicals. This technology overcomes the restrictions of ultrasound irradiation by the local production of a cavitation cloud close to the sonotrodes. In the presented paper hydrodynamic cavitation can be stabilized and extended inside a pipe downstream the nozzle depending on the ambient pressure conditions. If the pressure is kept low, the imploding cavitation bubbles generate new cavities, analogous to a chain reaction, and elevate the radical synthesis inside the apparatus. During the pilot tests using ethan-1,2-diol, the biological degradation characteristics changes significantly depending on cavitation exposure time. A significant difference on chemical effects was observed between imploding cavitation bubbles and supercavitation. Supercavitation can mobilize chemical stable compounds for further treatment.

Introduction
Materials and Methods
Results
Conclusion
References
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