SEWAGE PURIFICATION APPARATUS Russian patent published in 2001 - IPC

FIELD: sewage purifying equipment. SUBSTANCE: apparatus has bioreactior combined with aeration chamber and built in inner cavity of aeration tank-clarifier. Bioreactor is made in the form of hollow cylinder with inclined devices made in the form of bowls with hollow bottom and cones alternatively arranged in tiers. Sewage pipeline is positioned in upper part of bioreactor. Compressed air supplying device is positioned in lower part of bioreactor, under lower tier of bowls, and is made in the form of branch pipe with porous ceramic tip. Clarification chamber is positioned in circular cavity of aeration tank-clarifier and is equipped with self-contained air supplying source positioned in lower part of clarification chamber. Bioreactor has mechanism for removal of depositions from surfaces of inclined bowl or cones. Aeration tank-clarifier is buried into ground so that sewage supplying pipeline is positioned below sewage collector. Apparatus of such construction provides within bioreactor permanent contact between slit, sewage and air oxygen due to vortex and countercurrent flowing of liquid and air and, as a result, improved mass exchange and intensified oxidation of organic substances contained in sewage water. Sewage is supplied for purification without employment of pump to reduce production costs. Apparatus is readily readjusted for higher capacity by mounting additional tiers of bowls and cones in bioreactor. Apparatus may be used for purifying sewage of individual houses or groups of buildings or houses, as well as blocks of buildings in small, middle and large settlements. EFFECT: increased efficiency and reduced production costs. 5 cl, 4 dwg