MCQOPTIONS
Saved Bookmarks
| 1. |
Which is the best and the most effective method for the removal of organic contaminant present in the polluted water in very small quantity (say < 200 mg/litre)? |
| A. | Lagooning |
| B. | Activated carbon adsorption |
| C. | Biological oxidation pond |
| D. | Chemical coagulation |
| Answer» C. Biological oxidation pond | |