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What Is Ultrasonic Cavitation and How Is It Used in Liquid Processing?

[fa icon="calendar'] Jun 26, 2026 7:03:12 AM / by ISM Team posted in Ultrasonic Degassing, Liquid Degassing, Theory of Ultrasonic Processing, Cavitation

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Ultrasonic cavitation is a physical phenomenon where tiny vacuum bubbles form, grow, and then violently collapse in a liquid due to high-frequency sound waves (ultrasound).

 

How it works

  • Ultrasound waves (typically above 20 kHz) travel through a liquid.
  • These waves create alternating high-pressure and low-pressure cycles.
  • During low-pressure phases, microscopic bubbles form (this is called cavitation).
  • During high-pressure phases, the bubbles collapse or “implode.”

 

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