Wastewater treatment system with improved mixing efficiency using oxygen bubble

摘要

The present invention relates to a wastewater treatment apparatus with improved mixing efficiency, and more particularly, to a wastewater treatment apparatus having a body housing having a processing space portion therein, and an inflow space portion vertically opened inside the body housing, A diaphragm provided between the lower end of the inner body housing and the body housing for partitioning the processing space into a settling space and an aeration space, a wastewater inlet for supplying wastewater into the inflow space of the inner body housing, A sediment discharging portion for discharging sediment deposited in the sedimentation space portion of the body housing, which is a lower side of the inner body housing, for discharging treated water discharged at the upper end of the sedimentation space, A treatment water supply unit for introducing the separated treated water into the acidic space unit, An oxygen supply portion for spraying air bubbles, an oxygen supply and rotation portion for rotating the oxygen supply portion with respect to the inner body housing, and a scum discharge portion for floatably discharging the scum, do. According to the present invention, after the precipitate is separated from the influent wastewater, the scum generated can be removed as well as the suspended solids can be removed by the supplied oxygen, thereby improving the treatment efficiency.