FIELD: treatment of water; industrial and household waste water.SUBSTANCE: invention relates to waste water recycling systems at cattle-breeding complexes. System for utilization of waste water of the fourth group of admixtures of livestock complexes includes waste water accumulator (1), which has undergone a complete purification step and contains impurities of the fourth group. Accumulator (1) is connected to filter-press electrolyzer (2) with bipolar connection of electrodes, made with possibility of operation at atmospheric pressure. Electrolyte in the filter-press electrolysis cell (2) is part of the waste water volume from accumulator (1). Filter-press electrolyzer (2) is connected to heating boiler (3) equipped with nozzles. Heating boiler (3) is connected to heating system (4) of production premises of cattle-breeding complex.EFFECT: invention makes it possible to reduce the amount of waste water discharged from the fourth group of admixtures of cattle-breeding complexes, to improve ecology, to reduce costs for heating of production premises of cattle-breeding complexes.1 cl, 1 dwg
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