Nitrification and denitrification processes for biologic treatment of industrial effluents

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...

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Veröffentlicht in:Applied biochemistry and biotechnology 2001, Vol.91 (1-9), p.437-446
Hauptverfasser: Tavares, C.R.G, Rocha, R.R. de A, Guedes, T.A
Format: Artikel
Sprache:eng
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Zusammenfassung: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.
ISSN:0273-2289
1559-0291
0273-2289
DOI:10.1385/ABAB:91-93:1-9:437