FIELD: equipment for sewage treatment; equipment for biological and in-depth purification of effluents in small quantities. SUBSTANCE: apparatus comprises casing, aeration chamber accommodating semi-submerged partition and porous partitions, aerator provided with immersion pump, pipelines for sewage supply and discharge. Novelty resides in that aerator and immersion pump are arranged on either side of shell having porous partitions, and aerator is placed between casing and semi-submerged partition on sewage supply side. EFFECT: higher efficiency due to improved conditions for agitating sewage and due to providing constant contact of microflora with sewage to be treated in aeration chamber. 2 dwg
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