Experimental Study of Biodegradation of Ethanol and Toluene Vapors

φ
T
=ν 4
(5-53b)
φx = −ν 1
(5-53c)
where
φ
b
, φ t
and φx
are the flow of benzyl alcohol, toluene, and biomass into the
system (C-mol/L h), respectively.
Again, if the well-known assumption (Roels, 1983) is made that no net accumulation of
NADH 2 and ATP takes place, the Equations (5-47a) and (5-47b) can be obtained:
− α b
⋅ν
+ δ ⋅ν
0
(5-53d)
1 1 4
=
13 1
.084 ⋅ν + ν
2
−ν
3
− ν = 0
(5-53e)
7 7
1
4
Therefore, by coupling Equations (5-53a) to (5-53e), the relation between the flows of
benzyl alcohol, toluene and biomass in steady state continuous mode can be expressed
by:
φ ⋅ Y + φ ⋅Y
= ( −φ
) + m C
(5-54)
b
max
bx
T
max
tx
x
bt
x
Coupling with the parameters obtained from Equations (5-38) and (5-39), the following
results can be obtained:
1 7( K + 1.274δ
)
=
= 0.44 (5-54a)
max
Y bx
(13δ
)
and
max 12δ
Y tx
=
= 0.414 (5-54b)
7( K + 1.274δ
)
In Equation (5-54),
( − φ ) = μC
, therefore, the concentration of biomass can be
x
x
acquired by Equation (5-55):
C
x
1 max
tx
bt
= max
⋅ ( φb
⋅Ybx
+
T
⋅Y
( μ + m )
φ
)
(5-55)
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