3.3. Effect of C/N ratio on nitrogen removal
The effect of C/N ratio on nitrogen removal in the bioreactor
was evaluated at average influent concentrations of NH–N, TN,
NO2–N and NO–N of 38, 42, 0.01 and 0.01 mg/L, respectively.
DO concentration in the mixed liquor of the reactor was kept at
3.0(±0.5) mg/L.