Among industrial enterprises, which heavily pollute the environment, the impact of food industry companies is significant. First of all, it concerns enterprises that process agricultural raw materials, especially those of cattle-breeding. These enterprises are characterized not only by high water consumption (they occupy one of the first places among other industries), but also by significant dumping of used and contaminated wastewater into the environment: water, soil, and atmosphere. Some of these enterprises, in the best case, are equipped with primitive ineffective local treatment facilities, but most plants do not have even them. Wastewater contains residues of feed, kitchen salt, detergents and disinfectants, nitrogen and phosphorus compounds, alkalis, acids, and pathogenic microflora. Composition and volume of wastewater vary very widely. It depends on the type and composition of raw materials, produce range, seasonal fluctuations in production power, which are typical for most food industry enterprises, in particular meat processing. In addition, qualitative and quantitative indicators of wastewater are influenced by the composition of detergents and

As the world's population grows, the problem of food shortages becomes global, and, for human survival, it is necessary to significantly increase food production, which may increase environmental pollution. This paper has theoretically and practically substantiated the expediency of coagulation treatment of wastewater from milk-processing enterprises. The coagulant proposed to use is a multi-tonnage waste from industrial enterprises, specifically technical ferrous sulfate. It is shown that it is advisable to use the dairy effluent imitations based on milk powder for experimental studies. The potentiometric titration of dairy effluent imitations has established the presence of two points (pH=4.2 and 8.3), which characterize the boundaries of the buffering capacity of solutions. The expediency of carrying out the process of coagulation of dairy effluents in a weakly alkaline environment at pH≥8.3 has been substantiated, and, for the starting effluent to reach such a pH value, a 10-% suspension of Са(ОН)2 should be used. The effectiveness of reagent treatment of dairy effluents has been experimentally confirmed, subject to the alternate introduction of a coagulant (technical FeSO4) and flocculant (polyacrylamide) in the quantities of 120 and 40 mg/dm3, respectively; the degree of clarification of dairy effluents is 90 % while the residual COC value is 76 mgO2/dm3. It has been shown that when ultrasound was applied, it was possible to significantly reduce the interaction time and the amount of Са(ОН)2 suspension necessary to achieve pH≥8.3. Thus, there are grounds to assert the prospects for devising highly effective technology for the coagulation treatment of wastewater from milk-processing enterprises; the results and conclusions reported here about the technological feasibility of using technical FeSO4 as a coagulant could be practically applied for other technologies of coagulation wastewater treatment, provided that its pH value is brought to 8.3.

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The influence of Ferrum (II) sulfate (FeSO4) concentration in the absorbent solution and the influence of the process temperature on the efficiency of gas emissions purification in the apparatus with bucket dispersants was investigated. Кеуwordsexhaust gases, sulfur (IV) oxide.