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Leila Vafajoo,Houman Savoji,Roozbeh Fayal,Ali Baghaei 한국화학공학회 2011 Korean Journal of Chemical Engineering Vol.28 No.8
A tanks-in-series model was applied for mathematical modeling of the unsteady state performance of 70and 100 liters airlift bioreactor for the production of lactic acid by fermentation. A set of first-order differential equations for the material balances of micro-organism, substrate, product, and dissolved oxygen around hypothetically well mixed stages was solved simultaneously utilizing computer program in MATLAB. The kinetic model utilized considered the effect of two substrates (glucose and dissolved oxygen) on the growth rate. The effect of air velocity on the lactic acid production was investigated. Results of this model have been validated with experimental data.