Mechanism of phosphorus removal by SBR submerged biofilm system

The mechanism of phosphorus removal in SBR submerged biofilm system was studied in the research. The DNP and nuclear magnetic resonance methods were employed to verify the mechanism of phosphorus removal by bacteria with the phosphorus release in anaerobic phase and uptake in oxic and anoxic phases. The mathematical models of phosphorus releases in anaerobic phase and phosphorus uptake in oxic phase were deduced and evaluated by comparison between the theoretically calculated values and the test data.