Abstract
A laboratory scale upflow biological aerated filter (BAF) packed with a porous expanded polyurethane medium was developed to nitrify ammonium to nitrite selectively. Greater than 95% removal of ammonium was achieved up to 2 kg NH4 +-N m−3 d. NO2 −-N was accumulated up to 60% of the total (NO2 − + NO3 −)-N when oxygen was limited.
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Joo, SH., Kim, DJ., Yoo, IK. et al. Partial nitrification in an upflow biological aerated filter by O2 limitation. Biotechnology Letters 22, 937–940 (2000). https://doi.org/10.1023/A:1005646632504
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DOI: https://doi.org/10.1023/A:1005646632504