FIELD: process engineering, environmental protection.
SUBSTANCE: proposed comprises housing 1 with tight cover, equalising tank 3 with active sludge, small-bubble aerator 14, activation reservoir 19 with small-bubble aerators 20, tubular well 22 with filter 23, primary pump 27 and internal aerator 28, bubble level metre 29. It comprises also aeration tank 36 with small-bubble aerators 37, sludge recirculation pump 38, clarified water circulation pump 40 secondary settling tank 42, outlet filter 48, bio-film aerator-destructor 49, bio-film remover pump 5 and sludge stabilisation chamber 39 with large-bubble aerator 62. Further on, it includes compressor 79, control unit 30, sludge regeneration chamber 61, recirculation pump 38 to force treated sludge into stabilisation chamber 39 and water decontamination system 75.
EFFECT: high-quality purified waters.
4 cl, 2 dwg
