DEVICE FOR BIOLOGICAL TREATMENT OF SEWAGE Russian patent published in 2003 - IPC

FIELD: devices for treatment of sewage by biochemical method. SUBSTANCE: proposed device includes housing, charge and sewage inlet and outlet units. Sewage outlet unit is made in form of siphon line provided with adjustable gate valve for periodic emptying of housing and aeration of charge. Sewage inlet unit is provided with aerator. Sewage outlet unit is provided with vacuum pump which is communicated with atmosphere by means of riser; mounted on end of said riser is funnel with inner curvilinear helical conductors ; starting units of vacuum pump are connected to control console. Siphon line is connected with flexible pipe line laid under charge and provided with widening packings having inner curvilinear helical guides. Aerator consists of diffuser, bent contraction with inner curvilinear helical grooves and mixing chamber connected with bell mouth by means of branch pipe. EFFECT: enhanced efficiency of treatment of sewage. 3 dwg