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| Q. |
What is the normal value of the detention period adopted in a flocculator for design purpose? |
| A. | 30min |
| B. | 60min |
| C. | 90min |
| D. | 100min |
| Answer» A. 30min | |
| Explanation: the detention period in a flocculator for design purpose should be in the range of 10-40min and its normal value should be 30min. | |
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