Determine the cell concentration in the reactor

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Reference no: EM133989641

Assignment:

An industrial waste-water stream is fed to a stirred-tank reactor continuously and the cells are recycled back to the reactor from the bottom of the sedimentation tank placed after the reactor.

The following are given for the system:

F = 100 l/h; S0 = 5000 mg/l; mm = 0.25 h-1; Ks = 200 mg/l; a (recycle ratio) = 0.6; C (cell concentration factor) = 2; YM

X/S = 0.4. The effluent concentration is desired to be 100 mg/l.

a. Determine the required reactor volume.

b. Determine the cell concentration in the reactor and in the recycle stream.

c. If the residence time is 2 h in the sedimentation tank, determine the volume of the sedimentation tank and cell concentration in the effluent of the sedimentation tank.

Reference no: EM133989641

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