Table 2

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

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]


MLSS = Mixed liquor suspended solid

Qureshi et al. Microbial Cell Factories 2005 4:24   doi:10.1186/1475-2859-4-24

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