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Table 2 Productivities of different reactors employed for nitrification and denitrification/during the pretreatment of domestic or industrial wastewater streams.

From: Biofilm reactors for industrial bioconversion processes: employing potential of enhanced reaction rates

Reactor Type Removal rates (Productivities or specific productivities) Reference
  Nitrification Denitrification  
Activated sludge flocs (Single reactor) 24 μmol N g MLSS-1 h-1 6 μmol N g MLSS-1 h-1 [65]
Sequencing batch 19 mg NH3 L-1h-1 13.5 mg N L-1h-1 [66]
Chemostat (Continuous) 5.6 μmol NH3 h-1 mg protein-1 5.6 μmol N h-1 mg protein-1 [67]
Chemostat (Continuous) 2.6 μmol NH3 h-1 mg protein-1 4.1 μmol N h-1 mg protein-1 [68]
Continuous 250 μmol NH3 L-1h-1 400 μmol N L-1h-1 [69]
  1. MLSS = Mixed liquor suspended solid