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Analysis of the causes of excessive N (nitrogen) and P (phosphorus) standards in sewage treatment and control methods

Analysis of the causes of excessive N (nitrogen) and P (phosphorus) standards in sewage treatment and control methods

(Summary description)Introduction: Anaerobic-aerobic biological phosphorus removal process is a high F/M low SRT system.

Analysis of the causes of excessive N (nitrogen) and P (phosphorus) standards in sewage treatment and control methods

(Summary description)Introduction: Anaerobic-aerobic biological phosphorus removal process is a high F/M low SRT system.

Information

Introduction: Anaerobic-aerobic biological phosphorus removal process is a high F/M low SRT system. When F/M is higher and SRT is lower, the amount of residual sludge discharge is also higher. Therefore, under the condition of a certain phosphorus content in the sludge, the more phosphorus removal, the better the phosphorus removal effect. For biological systems whose main purpose is phosphorus removal, F/M is usually 0.4~0.7kgBOD/kgMLSS?d, and SRT is 3.5~7d. However, the SRT cannot be too low, and the effective removal of