| 摘要 |
PURPOSE: Provided is an SBR(Sequencing Batch Reactor) system with jet aeration/mixing system. In the SBR system, sludge produced in SBR is stored in a tank, and aerobic bacteria are inoculated into the sludge for decomposing organics of sludge in the aerobic and anoxic conditions. Aerobic and anoxic conditions are made by the jet aeration/mixing system. And residual sludge is mixed with oxidant for oxidation of sludge. Continuously oxidized sludge is recycled to SBR as organics and carbon sources of denitrification and phosphorus removal, and mixed with raw wastewater in the SBR by the jet aeration/mixing system. Consequently, sludge volume of SBR is reduced efficiently. CONSTITUTION: The jet aeration/mixing system includes: a jet-aerator for mixing and aerating wastewater; a pump for supplying wastewater to a pressurized liquid line(303); a blower for supplying air to a pressure air line(301); several inner nozzles(304) connected with the pressurized liquid line(303); several air ducts(302) equipped with the pressure air line(301); and a mixing chamber(305) for mixing liquid supplied from the pressurized liquid line(303) and air supplied from the pressure air line(301).
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