FLOATING DECANTER AND THE SBR WASTEWATER TREATMENT SYSTEM THEREWITH

摘要

PURPOSE: A floating decanter and an SBR waste water treatment system having the same are provided to maintain constant buoyancy by compensating the buoyancy of the decanter by a buoyancy compensating part, thereby stably discharging purified water from the upper part thereof. CONSTITUTION: A floating decanter comprises a cover(300) which has a supply line(322) with a decanter body(100) and a control valve(322a). A float(310) for floating the decanter is installed in a cover or a decanter main body. An outlet(321) for discharging waste water to the outside is formed in the decanter body or the float. A buoyancy compensating part(320) is formed in the decanter body or the float. A supply line(323) with control valves(323a) to supply and discharge air from the outside of a treatment system is mounted to the buoyancy reinforcing part. Each of the control valves controls air flow through the supply line to be opposite to air flow to the buoyancy compensating part, thereby constantly maintaining the whole buoyancy of the floating decanter.