Research Article

Comparison of Simultaneous Nitrification and Denitrification for Three Different Reactors

Table 3

Summary of reactors performance.

ParametersSuspended sludge reactor (SSR)Entrapped sludge reactor (ESR)Mixed sludge reactor (MSR)

Nitrogen removal efficiency (%)64.798.345.1
Effluent NH4-N (mg/L)0.00.00.1
Effluent NO2-N (mg/L)0.00.61.6
Effluent NO3-N (mg/L)15.00.120.2
Nitrification rate (mg/L-min)0.20.30.2
Denitrification rate (mg/L-min)1.80.10.05
Internal carbon consumptionNoYesNo