A continuous process is set up for treatment of wastewater. Each day, 103 kg cellulose and 105 kg bacteria enter in the feed stream, while 102 kg cellulose and 1.5 x 102 kg bacteria leave in the effluent. The rate of cellulose digestion by the bacteria is 8 x 102 kg d-1. The rate of bacterial growth is 4x 102 kg d-l; the rate of cell death by lysis is 6 x 102 kg d-1. Write balances for cellulose and bacteria in the system.

A continuous process is set up for treatment of wastewater. Each day,

1.	A continuous process is set up for treatment of wastewater. Each day, 103 kg cellulose and 105 kg bacteria enter in the feed stream, while 102 kg cellulose and 1.5 x 102 kg bacteria leave in the effluent. The rate of cellulose digestion by the bacteria is 8 x 102 kg d-1. The rate of bacterial growth is 4x 102 kg d-l; the rate of cell death by lysis is 6 x 102 kg d-1. Write balances for cellulose and bacteria in the system.
A.	1 10<sup>3</sup> kg, 9 10<sup>3</sup> kg
B.	1 10<sup>2</sup> kg, 9.965 10<sup>4</sup> kg
C.	1 10<sup>3</sup> kg, 9.964 10<sup>4</sup> kg
D.	1 10<sup>2</sup> kg, 9 10<sup>3</sup> kg
Answer» C. 1 10<sup>3</sup> kg, 9.964 10<sup>4</sup> kg