COARSE BUBBLE AIR DIFFUSER AND SEQUENTIAL BATCH WASTEWATER TREATMENT APPARATUS OF REMOVING NITROGEN AND PHOSPHOR

摘要

The present invention provides a coarse bubble diffuser for generating coarse bubbles, comprising: an air pipe receiving air from a separate air blower located outside; and a nozzle unit for generating and discharging coarse air bubbles by using the air discharged at high pressure from the air pipe; The nozzle part forms a relatively narrow inlet of the nozzle part where the nozzle part meets the air pipe, and the outlet part of the nozzle part where the nozzle part meets the external reaction tank is formed relatively wider than the inlet part of the nozzle part so that coarse bubbles can be generated. The coarse bubble diffuser is disclosed.