Types of plants for denitrification
Figur 7.14 The Frederikssund central treatment plant (Denmark).
Phase A
Phase 8
Phase C
PhaseD
Figur 7.15 Alternating nitrification and denitrification in one tank (SBR-plant or oxidation ditch
plant). Jf there is a separate settling tank, phases C and D can be left out, and effluent
from the tank is then also possible in phases A and B.
0: Denitrification
N: Nitrification
5: Settling
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