AEROTANK Russian patent published in 2002 - IPC

FIELD: treatment of industrial or domestic sewage waters. SUBSTANCE: aerotank has bed, conical inclined partitions with main deflectors, supply units of initial liquid, liquid aeration units, units of discharge of purified liquid and excessive sludge, caps with units supplying gas-liquid mixture and discharge of gas and liquid, additional deflectors connected with conical inclined partitions and/or main deflectors with formation of caps. Conical inclined partitions are located in zigzag manner, and additional deflectors are connected with main deflectors and located under units supplying gas-liquid mixture. Aerotank has ejector in space under lower conical inclined partitions with curved cycloid jugs on their surface. Ejector nozzle part internal surface has curved spiral guides connected by means of flexible pipelines with annular chamber whose surface carries expanding nozzles directed with alternating sequence horizontally and vertically upward, and their internal surface has curved helical grooves. EFFECT: higher efficiency of aerotank usage. 5 dwg