Fig. 3: Long-term performance of the partial nitrification + denitrification/anammox system. | Communications Engineering

Fig. 3: Long-term performance of the partial nitrification + denitrification/anammox system.

From: Pilot-scale partial nitrification and anaerobic ammonium oxidation system for nitrogen removal from municipal wastewater

Fig. 3

a Influent total inorganic nitrogen (Inf. TIN, purple solid pentagons), effluent total inorganic nitrogen (Eff. TIN, purple hollow pentagons), total inorganic nitrogen removal efficiency (Re-TIN, deep yellow columns). b Contribution of partial nitrification sequencing batch reactor (PN-SBR) to TIN removal (PNTIN-SBR, light orange columns) and contribution of denitrification/anammox sequencing batch reactor (D-SBR) to TIN removal (DTIN-SBR, light green columns). c Influent chemical oxygen demand (Inf. COD, orange solid rhombus), effluent chemical oxygen demand (Eff. COD, orange hollow rhombus), chemical oxygen demand removal efficiency (Re-COD, navy blue columns). d Contribution of PN-SBR to COD (PNCOD-SBR, light yellow columns) and contribution of PN-SBR to COD (DCOD-SBR, light blue columns). I, II, and III at the top of the figure represent phase I, phase II, and phase III in the long-term operation of the system, respectively.

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