Purpose: to consider the possibility of using the cavitation method of disinfection of livestock effluents with the possibility of their applying immediately for fertilizing agricultural crops and obtaining liquid and solid phases of organic-mineral fertilizers. Discussions. The presented technological schemes for preparation of livestock effluents allow them to be used without adding chemical reagents and keeping quarantine in lagoons, as well as to obtain environmentally friendly fertilizers, which is promising for organic agriculture. The introduction of the cavitation method for processing livestock wastewater allowed Sistema LLC to get rid of the specific smell characteristic of pig farms, to reduce the cost of utilizing manure, since the cost of treatment 1 m³ of wastewater on a cavitation generator-disperser is about 7.5 rubles/m³. The introduction of cavitated manure runoff under cultivated crops ensured an increase in productivity, an increase in biomass and an increase in the quality of cultivated crops. Conclusions. Cavitation treatment allows livestock wastewater to be immediately applied to agricultural fields and makes it possible to build livestock complexes without settling lagoon-silt sumps, which reduces the negative impact on the environment. Cavitation is an efficient and energy-saving, environmentally friendly direction of manure disposal, allows organic agriculture based on environmental principles. The obtained organic-mineral fertilizers are not much inferior to industrial fertilizers in terms of yield and surpass them in quality. The cavitation treatment technologies of livestock wastewater will allow farms to produce organic products, which, due to an increase in demand for such products, will increase the level of sales both in Russia and in countries whose inhabitants are the main consumers of organic products.
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