Optimum Operations of Fermentors

With poison-free Monod kinetics and a given feed, we have a U-shaped 1/r versus C curve, as shown in Fig. 29.6. 

From Chapter 5 we have learned that with this form of rate-concentration curve we should operate as follows  

These two rules represent the key to optimum reactor behavior. 

Let us illustrate the above important optimization principle by suggesting how to best operate various combinations of mixed flow reactors for a fermentation which follows Monod kinetics, and where 

Preliminary. From the optimization rules for mixed flow reactions (see Eqs. 9 and 10), we have 

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