The ultrasonicSonicator generates high frequency vibrations by means of an S.S. velocity Horn which is immersed in the liquid to be processed. These vibrations give rise to millions of intense microscopic vacuum bubbles which form and implode at a very high rate (twenty thousand times per second).This phenomenon is known as CAVITATIONS. These cavitation gives rise to intense local pressure waves and micro-streaming of the liquid round the points of collapse which in turn produces high-sheargradients which is responsible for the above activities.