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|
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. |
|
|