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aeration and agitation - Coggle Diagram
aeration and agitation
effect of DOC on Q_O2
effect of DOC on product formation
Q_O2 max gives a maximum biomass
aeration conditions necessary for optimum production of a product may be different from those favouring biomass production
oxygen supply
lab scale
shake -flask
pilot- and industrial-scale fermentors
stirred, aerated vessels
from air to medium
KL a
the efficiency with which oxygen can be delivered to a bioreactor under given operation conditions
dynamic method of gassing out
factor effecting KL a
air-flow rate
agitation degree
doet het opp voor zuurstof transfer stijgen door het verspreiden van de lucht in de fluid cultuur in de vorm van kleine bubbels
viscosity
mycelium concentration
increasing viscosity --> decreasing KL a
foam and antifoam
schuim heeft een nadelig effect op oxygen transfer rate; problemen met bubbels en schuim in impeller region maakt de mixing minder goed
if DOC is immediately removed from the solution due to uptake by culture
OTR = OUR