MCQOPTIONS
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MCQOPTIONS
| 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√ó 103 kg, 9√ó 10<sup>3</sup> kg |
| B. | 1√ó 102 kg, 9.965 √ó 10<sup>4</sup> kg |
| C. | 1√ó 103 kg, 9.964 √ó 10<sup>4</sup> kg |
| D. | 1√ó 102 kg, 9√ó 10<sup>3</sup> kg |
| Answer» C. 1‚Äö√†√∂‚àö‚â• 103 kg, 9.964 ‚Äö√†√∂‚àö‚â• 10<sup>4</sup> kg | |