Micro Bubble Size Control Methods
Operating Parameters
- Adjusting the gas flow rate directly influences bubble size
- Lower gas flow rates generally result in smaller bubbles
- Higher liquid flow rates enhance shearing, breaking larger bubbles
Design Features
- Nozzles with smaller diameters produce smaller bubbles
- Micro-porous membranes create numerous small gas outlets
- Ultrasonic or hydrodynamic cavitation fragments larger bubbles
Fluid Properties
- Higher surface tension liquids form larger bubbles
- Surfactants reduce surface tension, promoting smaller bubbles
- Temperature impacts surface tension and viscosity