DEVICE FOR BIOLOGICAL PURIFICATION OF SEWAGE Russian patent published in 1998 - IPC

FIELD: effluent purification facilities. SUBSTANCE: device can be used for complete purification of domestic sewage in small and medium amounts. Device has housing which is divided by partitions into aeration chamber, degassing chamber, and sorbing chamber. Also provided is purified effluent outflow system. Located inside aeration chamber is rotor which functions as carrier of biocenosis. Located in lower narrowing part of housing are additional chambers for biofiltration with openings for delivery of non-purified sewage and discharge of used silt, and rotating rotor which is floating in semi-immersed position and brought to rotation by means of airlift. Aforesaid embodiment of device ensures increased degree of purification and reduced power consumption. EFFECT: higher efficiency. 3 dwg