From: Periodic-peristole agitation for process enhancement of butanol fermentation
 | Traditional Rushton impeller | Periodic- peristole reactor |
---|---|---|
Reactor volume | 4Â L | 4Â L |
The tank diameter, D | 0.14 | 0.14 |
The tank height (m), H | 0.25 | 0.25 |
Mixed mode | Rushton impeller | Peristole |
Main Flow type | Axial and radius direction | Axial direction |
Impeller diameter (m), d | 0.03 | – |
Number of blades | 1 | – |
Power input (Pm) | 23Â W | 18Â W |
Agitation rate (rpm) | 55 | – |
Shrinking rate (m/s) | – | 0.005 |
Eddy length (m) | 9.54 × 10−5 | 1.28 × 10−4 |
Velocity range (m/s) | 0–0.173 | 0–0.0269 |
The maximum turbulence intensity (%) | 2.3 | 25.7 |
Mixing time (s) | 120 | 95 |