FIELD: agriculture; waste water purification. SUBSTANCE: invention is aimed at completely cleaning drainage according to the most compact technology, using cleaned water in return water supply of farm, feeding boiler operated on biogas originated from fermented liquid fraction, and utilizing solid fraction as fertilizer. To achieve this aim, treatment of fermented biomass is carried out on stepped freshening plant, wherein steam is condensed in cooling tower, and condensate is utilized in return water supply system. Biogas is burned, and hot water is used for heating methane tank, gas holder, and drying apparatuses. Air tanks and settlers are fully eliminated. EFFECT: sharply reduced water consumption and decreased volume of methane tanks due to separation of drainage into fractions. 1 dwg
| Title | Year | Author | Number |
|---|---|---|---|
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