DEVICE FOR SEWAGE AERATION Russian patent published in 2005 - IPC

FIELD: devices for biological purification of industrial and household sewage.

SUBSTANCE: the invention is dealt with biological purification of household and industrial sewage in artificially created conditions and may be used for sewage aeration. The device contains a sewage-feeding pipe with a conical nozzle and a coaxially located contraction tube, an anti-vacuum pipe, the plenum chamber and the diffuser. The sewage-feeding pipe is connected to the pipeline of sewage delivery through the cylindrical distributing device located coaxially outside an anti-vacuum pipe being simultaneously a contraction tube. The distributing device of the sewage delivery into the nozzle is supplied with no less than three connecting pipes, axes of which are located at an acute angle to the axis of the sewage delivery pipe. A cross-section area of an air delivery exceeds the cross-section area of the sewage delivery pipe in 1.5 times. A cross-section area of the distributing device exceeds the cross section area of the sewage delivery pipe in no less than 1.25 times. The total cross section area of all connecting pipes is equal to the cross section area of the distributing device. The technical result is an essential increase of a degree of the sewage aeration, a decrease of the cost price of the sewage treatment and decrease of a necessary number of devices for sewage purification.

EFFECT: the invention ensures essential increase of a degree of the sewage aeration, a decrease of the cost price of the sewage treatment and decrease of a necessary number of devices for sewage purification.

2 dwg