| 摘要 |
PURPOSE: A simultaneous nitrification/denitrification treatment apparatus of sewage/wastewater, sewage/wastewater treatment system using it and a treatment method thereof are provided, in which simultaneous nitrification/denitrification is carried out in one reactor that is not divided into unit process, so suspended solids as well as nitrogen and phosphorus contained in sewage and wastewater are treated efficiently. CONSTITUTION: In a simultaneous nitrification/denitrification treatment system of sewage/wastewater including a simultaneous nitrification/denitrification treatment tank(12), an aeration device, the treatment method comprises the steps of providing the simultaneous nitrification/denitrification treatment equipment; receiving sewage and wastewater into the treatment equipment; conducting simultaneous nitrification/denitrification by aeration for keeping floc size of microorganism contained in the water within permissible range; receiving the treated water to the settling tank; and settling and discharging the treated water.
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