On average, the EF N2O contribution of the aerobic reactor rose from 64% in period I to 76% in periods II and III, thus suggesting an increasing trend of N 2 O-N production during nitrification, especially under stress conditions.
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Sludge reduction, nitrous oxide emissions, and phosphorus removal by oxic-settling-anaerobic (OSA) process: the effect of hydraulic retention time.
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