

MCQOPTIONS
Saved Bookmarks
1. |
At which point, chemical addition for phosphorous removal can t be carried out? |
A. | tPreliminary treatment |
B. | tPrior to primary sedimentation tank |
C. | tPrior to secondary treatment |
D. | tAfter secondary treatment |
Answer» B. tPrior to primary sedimentation tank | |