Electronic Journal of Biotechnology ISSN: 0717-3458
  © 2003 by Universidad Católica de Valparaíso -- Chile
Vol. 6 No. 3, Issue of December 15, 2003 
 
Table 5. Optimal agitation rate and impeller height that maximise exit and mean solids contenta.

 

Pitched-blade turbine (6MFU)

Marine propeller (3MPU)

Exit

Mean

Exit

Mean

Solids, % w/v

5.02

5.26

4.15

5.6

Agitation rate, rpm

630

760

770

860

Impeller height, cm

13.0

8.7

9.1

9.0

a Aeration rate: 2.0 vvm, feed concentration: 6% w/v.

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