GATE Civil Engineering 2016 Paper 1
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Question : 30
Total: 65
Match the items in Group – I with those in Group – II and choose the right combination.
| Group I | Group II |
|---|---|
| P. Activated sludge process | 1. Nitrifiers and denitrifiers |
| Q. Rising of sludge | 2. Autotrophic bacteria |
| R. Conventional nitrification | 3. Heterotrophic bacteria |
| S. Biological nitrogen removal | 4. Denitrifiers |
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