Denitrifying phosphorus removal process nitrous oxide reduction control sewage treatment device and method

The invention discloses a denitrifying phosphorus removal process nitrous oxide reduction control sewage treatment device and method. The device comprises a raw water tank, a feed pump, an SBR (sequencing batch reactor) and an effluent water tank, the raw water tank is connected with a water inlet of the SBR, a water outlet of the SBR is connected with the effluent water tank, a sealing cover is mounted at the top of the SBR, a stirrer and an aerating system are arranged in the SBR, the sealing cover is connected with a gas collection bag through a gas collection hole, a dosing pipeline is further arranged on the sealing cover, the aerating system comprises an air blower, a flow meter and an aerating head, a DO (dissolved oxygen) display instrument is connected into the SBR through a DO probe, an ORP (oxidation-reduction potential) display instrument is connected into the SBR through an ORP probe, and a sludge valve is arranged at the bottom of the SBR. Running efficiency and stabilityof a denitrifying phosph