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| Q. |
Which is correct sequence for purification process of STPs ? |
| A. | Primary Sludge EffluentFlocks Active Sludge Biogas |
| B. | Flocks Primary Sludge Effluent Active Sludge Biogas |
| C. | Primary Sludge Effluent Active Sludge Flocks Biogas |
| D. | EffluentFlocks Primary Sludge Active Sludge Biogas |
| Answer» A. Primary Sludge EffluentFlocks Active Sludge Biogas | |
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