AEROTANK FOR SEWAGE WATER TREATMENT Russian patent published in 2002 - IPC

FIELD: plants for biological treatment of sewage waters. SUBSTANCE: aerotank has supplying and discharging pipelines, cylindrical body which upper part carries mechanical surface aerator with bent blades, and its lower part has guide cone with curved helical guides; splash guard in the form of truncated cone with radial partitions located in body middle part and secured to side walls with horizontal slotted holes with their edges bent to opposite sides, with upper edge bend located with its convexity in direction of aerator rotation; supplying pipeline connected tangentially to body and having at its end ejector with mixing chamber communicated with ambient atmosphere and curved helical grooves on internal surface of its nozzle part. EFFECT: intensified process of saturation of aerated liquid with air oxygen. 4 dwg