Dephosphorization dosing intelligent control system

The utility model discloses a dephosphorization and dosing intelligent control system which comprises an intelligent control terminal, a dephosphorization facility and a variable-frequency dosing device, the dephosphorization facility comprises a water inlet, an A2/O biochemical pool, a distribution well and a water outlet which are communicated in sequence, the variable-frequency dosing device iscommunicated with the distribution well, and a dosing flow meter is arranged at a dosing outlet. An inlet total phosphorus online analyzer and an inlet water flow meter are arranged at the water inlet, an outlet water total phosphorus analyzer and an outlet water flow meter are arranged at the water outlet, and a biochemical outlet total phosphorus analyzer is arranged at the outlet of the A2/O biochemical pool. According to the intelligent control system for phosphorus removal and chemical addition, the biological phosphorus removal effect can be fully utilized, sewage treatment of biological phosphorus removal firs