FINE BUBBLE GENERATION IN A COLUMN REACTOR BY PLACEMENT OF A DIAPHRAGM ACROSS A LOW FREQUENCY SOUND FIELD

Abstract

Low frequency sound (50-500 Hz) is known for improving mass transfer in a gas-liquid medium. For fast reactions in bubble columns low frequency sound waves can be used for the enhancement of mass transfer. Any reduction in generation of fine bubbles will result in increasing the yield for mass transfer area controlled reactions. In the present investigation, through placement of a diaphragm across a sound field, bubble sizes were further reduced by about 8.3%. These phenomena are demonstrated in the present paper.