Fig. 6: Microbial community in the partial nitrification + denitrification/anammox system.

a Evolution of microbial community in the partial nitrification sequencing batch reactor (PN-SBR) at the genus level, with PN1 representing phase I (dark blue columns) and PN2 representing phase III (light red columns), respectively. b Evolution of microbial community in the denitrification/anammox sequencing batch reactor (D-SBR) at the genus level, with D1 representing phase I (black columns) and D2 representing phase III (red columns), respectively.