MCQOPTIONS
Saved Bookmarks
MCQOPTIONS
| 1. |
What is the retention time considered for the aerobic zone for the A2O process for removing phosphorus? |
| A. | t0.5-1.5 hrs |
| B. | t1.5-3 hrs |
| C. | t3-4 hrs |
| D. | t4-8 hrs |
| Answer» E. | |