TUBULAR AERATOR Russian patent published in 2001 - IPC

FIELD: equipment for sewage water treatment; applicable in biological treatment of sewage waters in aeration tanks with activated sludge. SUBSTANCE: tubular aerator has air-permeable frame made of two coaxially arranged layers of reticular material. Reticular material is formed of fiberglass cord impregnated with fast-hardening resin. Located between layers of reticular material is dispersing material. External layer of reticular material is at least 1 mm thick and internal layer is at least 5 mm thick. EFFECT: reduced hydraulic resistance of tubular aerator and increased service life. 2 dwg