This study focused on a venture-type microbubble generator utilized as a chemical reactor. The purpose is to obtain fundamental knowledge on degradation of harmful material in a venture tube and utilization of ventilation filter system with venture scrubber (VS) .
The chemical reaction was examined from both pH and gas concentration measurement. It was indicated that bubble breakup phenomena in a venture tube initiated a chemical reaction. Void fraction measurement system with a constant electric current method for bubbly flow was developed with applying Maxwell’s theory. In a certain higher gas flow rate, the VS lapses into suspension mode of the self-priming by reach to the sonic velocity in the throat part and pressure increasing in the VS. Pressure propagation phenomenon in a venturi tube was investigated. The propagation speed decreased with an increase of the void fraction. An attenuation value of the pressure wave also decreased with the increase of the void fraction.