Efficient carbon, nitrogen and phosphorus removal from low C/N real domestic wastewater with aerobic granular sludge.

This work reports on simultaneous nitrification, denitrification and phosphorus removal treating real domestic wastewater with low carbon/nitrogen (C/N) ratio by aerobic granular sludge (AGS). Operations at high sludge retention time (SRT = 61 ± 24 days) resulted in low biomass yield per chemical oxygen demand removed (COD) (0.21 ± 0.