FIELD: mechanical engineering. SUBSTANCE: installation is intended for cleaning of municipal, industrial and agricultural sewage by means of active sludge and biological film. Installation has body filled by particles-carriers up to at least 60 % of water depth. Particles-carriers are capable of swirling with microorganisms settled of them. Vacant space in bulk of microorganisms makes up 400-800 l/cu.m. Aerating devices are positioned at bottom of installation. At least one pump is installed above particles-carriers. It is coupled to sludge collector or to drainage. Installation realizes interconnection of active sludge biology with biology of biological film. EFFECT: raised power of installation. 5 cl, 1 dwg
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