Abstract
Nitrification process performance was evaluated using a three-phase fluidized-bed bioreactor. A synthetic effluent was used for this experiment containing 180–230 mg/L of chemical oxygen demand (COD), 25–30 mg/L of N-NH4 +, 12 to 13 mg/L of total phosphorous, and micronutrients. The bioreactor used for denitrification behaved as completely mixed. The results indicate that the nitrification process was efficient, reaching efficiencies of about 98%. The best results related to the efficiency of the denitrification process were obtained when the processes were supplemented with the carbon source. The results indicated an efficiency of 86–98% COD removal.Index EntriesNitrificationdenitrificationthree-phase fluidized-bed bioreactor Nitrobacter Nitrosomonas
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