FIELD: process engineering.
SUBSTANCE: invention relates to sewage treatment by high-level sewage treatment method using static carrier. Proposed method exploits aerated tank 1 wherein sewage stays in contact with carrier representing particles in aerobic conditions and complete oxidation tank 3 wherein volume of slime produced in aerated tank 1 is reduced in aerobic conditions. Self-oxidation factor of slime fed into complete oxidation tank 3 reaches 0.05 a day. Proposed method comprises adding coagulant into said tank 3 to facilitate solid-liquid separation peculiar to slime in complete oxidation tank.
EFFECT: minimised excess slime, reduced overall dimensions of complete oxidation tank.
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