Dynamics of microbial community structure and nutrient removal from an innovative side-stream enhanced biological phosphorus removal process.

Biological phosphorous (P) and nitrogen (N) removal from municipal wastewater was studied using an innovative anoxic-aerobic-anaerobic side-stream treatment system. The impact of influent water quality including chemical oxygen demand (COD), ammonium and orthophosphate concentrations on the reactor performance was evaluated. The results showed the system was very effective at removing both COD (>88%) and NH-N (>96%) despite varying influent concentrations of COD, NH-N, and total PO-P.