SEWAGE TREATMENT APPARATUS Russian patent published in 2002 - IPC

FIELD: sewage treatment equipment. SUBSTANCE: apparatus has vertical pipe with separation section. Pipe lower part is connected to vessel and pipe upper part is equipped with head. Shell of smaller diameter is arranged above head. Air supply pipeline is communicated with annular space between head and pipe surfaces. Lower part of pipe is formed as cone with smaller base directed downward and is connected to vessel so as to define cavity between cone and vessel wall. Ejector is fixed on pressure pipeline. Sewage water circulation circuit includes pump, suction pipeline and pressure pipeline. Apparatus may be employed for treating domestic, natural and industrial waste water by means of gaseous oxidizing reactants. Construction of apparatus allows power consumption to be reduced by 1.5-2 times. EFFECT: improved quality of treated water by intensified mass exchange mode and enhanced reliability in operation. 1 dwg