Experimental Study of Biodegradation of Ethanol and Toluene Vapors

0.3
Specific growth rate, h -1
0.25
0.2
0.15
0.1
0.05
0
0.5 1 1.5 2 2.5 3 3.5
Benzyl alcohol concentration, g/L
Figure 5-12. Effect of benzyl alcohol concentration on the specific growth rate of
P. Putida
Equations (5-36), (5-37) and the values of parameters in Tables 5-2 are applied
for the calculations of biomass and benzyl alcohol concentrations in batch growth at
different initial benzyl alcohol concentrations.
μ C C
r =
)
x
b,max
b
b n
μ C
x
= (1 − C
x
(5-36)
K
b
+ Cb
Cb,max
dC
1
μ
b
b,max
b
b n
− = ( )( )(1 − )
max
dt Yxb
K
b
+ Cb
Cb,max
C
C
C
x
+ m C
b
x
(5-37)
The predicted results are shown in Figures 5-13a-c. The mass concentrations are
calculated from the mole concentrations obtained from Equations (5-36) and (5-37).
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