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Bioprocess Engineering 2nd Edition by Fikret Kargi,Michael Shuler
Edition 2ISBN: 9780130819086Bioprocess Engineering 2nd Edition by Fikret Kargi,Michael Shuler
Edition 2ISBN: 9780130819086 Exercise 2
The 
value of a waste-water feed stream to an activated-sludge unit is 
and the effluent is desired to be S = 30 mg/l. The feed flow rate is 
l/day. For the
recycle ratio of
and a steady-state biomass concentration of X = 5 g/l, calculate the
following:
a. Required reactor volume (V).
b. Biomass concentration in recycle
c. Solids (cells) residence time
d. Hydraulic residence time
e. Determine the daily oxygen requirement.
Use the following kinetic parameters:
value of a waste-water feed stream to an activated-sludge unit is and the effluent is desired to be S = 30 mg/l. The feed flow rate is l/day. For therecycle ratio of
and a steady-state biomass concentration of X = 5 g/l, calculate thefollowing:
a. Required reactor volume (V).
b. Biomass concentration in recycle
c. Solids (cells) residence time
d. Hydraulic residence time
e. Determine the daily oxygen requirement.
Use the following kinetic parameters:
Explanation
Verified
Verified
a) Required reactor volume ( V ) 
b) B...
Bioprocess Engineering 2nd Edition by Fikret Kargi,Michael Shuler
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