TLS Online TPP Program
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TLS Online TPP Program
#Question id: 20828
#Unit 12. Biochemical Engineering
In a fed batch cultivation, a specific growth rate of 0.2/h needs to be maintained. At the start of fedbatch cultivation, 200 mL/h of media is fed to 1000 mL of working volume. Quasi steady state shall be obtained if:
TLS Online TPP Program
#Question id: 20836
#Unit 12. Biochemical Engineering
Two columns of 1 m and 2 m height and of equal diameter are packed with beads containing immobilized enzyme. Substrate was fed to these two columns at flow rates of 10 mL/min (1 m column) and 20 mL /min (2 m column) and the corresponding conversion efficiencies obtained were 30% and 40% respectively. This demonstrates that the reaction is:
TLS Online TPP Program
#Question id: 20562
#Unit 12. Biochemical Engineering
Scale up of a fermenter is done based on constant impeller tip speed. If the diameter of the impeller is increased by 10 fold, the agitator speed will:
TLS Online TPP Program
#Question id: 20574
#Unit 12. Biochemical Engineering
The least used heat transfer-design in bioreactor is:
TLS Online TPP Program
#Question id: 31769
#Unit 12. Biochemical Engineering
An airlift bioreactor uses
TLS Online TPP Program
#Question id: 31774
#Unit 12. Biochemical Engineering
A bioreactor of volume 1 m3 is operated continuously under steady state with inlet substrate concentration of 10 Kg.m3 . The organism being cultivated has ยตm = 0.30 h-1 and saturation constant (Ks) = 0.5 g.l- 1. The feed flow rate required to achieve 90% conversion of the substrate will be