The water resources are the main component of technological processes occurring in industry; therefore, increasing the level of environmental safety, in particular, wastewater treatment without adverse impact on the environment and human health is relevant. The preliminary environmental analysis of the motor transport enterprise (MTE) activity has been carried out. It has been established that about twenty environmental aspects identified in the departments of technical inspection and repair and service have an adverse impact on the state of the environment. A substantial impact on the environment occurs when the sewage containing petroleum products, washing liquids, waste lubricants and contaminated by the products of tissue origin enters the soil and water objects and their resources. On the basis of the preliminary analysis, the authors have identified the environmental aspects of the company's activity and proposed an environmental policy as an essential element for the implementation of the environmental management system. The studies conducted with the aim of determining the motor transport enterprise sewage composition revealed an excessive content of polluting chemical substances, namely: suspended substances, phosphates, iron, fats, oil products and synthetic detergents. The expediency of using carbonaceous sorbents of vegetable origin, which were obtained from the waste wood industry for wastewater treatment of the enterprise, was investigated. It was revealed that the process of sorption purification improved the quality of wastewater of the motor transport enterprise to the standard values. The proposed recommendations for the implementation of the environmental management system will gradually reduce the impact of the company on the main components of the biosphere. Effective implementation of the environmental management system will help to increase the competitiveness of the enterprise and lead to an economic effect by saving raw materials, materials, energy resources, reducing the environmental fees and penalties.

In most settlements of Ukraine there are no existing programs for municipal solid waste management (MSW) and schemes for sanitary cleaning of settlements, there are no registers of waste generation, treatment and disposal and disposal sites, which leads to the formation of landfills, deteriorating sanitation settlements and increase the level of environmental danger in the region. The article presents the results of research that indicate that the existing structure of the MSW management system in Ukraine at the regional level (on the example of Zhytomyr region) is imperfect. It is characterized by fragmentation, disunity and heterogeneity. The peculiarity of the system is the lack of interaction between government agencies, environmental services and the local community, which does not provide a sufficient level of control over the sanitary condition of territories, as well as collection, transportation, disposal and disposal of solid waste. The aim of the study is to strategically analyze the preconditions for the implementation of municipal solid waste management systems to increase the level of environmental safety in the united territorial communities through the introduction of environmental logistics and crowdsourcing mechanisms. The methodological basis for assessing and selecting methods and ways to improve the environmental safety of the study region by improving the waste management system (hereinafter -waste management) is a systematic approach that allows analysis of the problem and ensures search efficiency for management decisions. The SWOT and PEST analysis identified the strengths and weaknesses of the existing waste management system and the prerequisites for the implementation of a modern system of solid waste management. The increase in the number of business structures that are ready and able to implement modern methods of waste disposal and identified the availability of modern innovative management methods in public authorities and local governments. However, the low efficiency of the existing waste management system, the lack of communication and coordination of actions between stakeholders in solving the problem pose a threat to maintaining the environmental security of the region.

Magnetite is an essential iron-bearing mineral. The primary method of magnetite ore beneficiation involves successive steps of crushing, grinding, and magnetic separation. Reverse cationic flotation is used at the final stage to remove silicate and aluminosilicate impurities from the magnetite concentrate and reduce silica content to 1–3%, depending on metallurgical processing route (electrometallurgy, direct iron reduction). In view of the stringent demands of the magnetite concentrate grade, before flotation, the ore is currently routinely ground down to a particle size below 35 µm, and magnetite particles are ground to a size below 10 µm. This significantly reduces the efficiency of flotation and increases iron loss in the tailings due to the hydraulic report in froth being up to 15–25%. Combined microflotation (CMF) looks to be a promising method of increasing fine-particle flotation efficiency, as it uses relatively small amounts of microbubbles alongside conventional coarse bubbles. Microbubbles act as flotation carriers, collecting gangue particles on their surface, which then coarse bubbles float. The purpose of this study is to explore the effectiveness of CMF for processing a model mixture that contained magnetite particles smaller than 10 µm and glass beads (Ballotini) below 37 µm in size when the initial iron content in the mixture was 63.76%. Commercial reagent Lilaflot 821M was used as both collector and frother. The flotation procedure, which included the introduction of 15 g/t of the collector before the start of flotation, and the addition of 5 g/t of the collector in combination with a microbubble dose of 0.018 m3/t 6 min after starting flotation, ensured an increase in the concentrate grade to 67.63% Fe and iron recovery of 91.16%.

From the point of view of the system approach, the interrelation in the system “highway repair – environment” was investigated, which allowed systematizing the main aspects of environmental impact during the technological process of road repair. As a result of the parametric analysis of the subsystems that make up the system, the main groups of environmental parameters that are subject to the effects of technological processes of road repair were identified. The mathematical model of cause-effect relationships in the system under study allows identifying the main aspects of environmental impact during technological processes of road construction and reconstruction. Its application in environmental impact assessment allows forming a criteria base for environmental impact assessment. The article defines the relationship between the process of performing a certain stage of repair work on the project of construction of the highway of state importance N-31 Dnipro – Tsarychanka – Kobeliaky – Reshetylivka and its impact on the environment.

Among a large number of environmental challenges today there are problems with the environmental condition of soils, as their contamination with various anthropogenic pollutants leads not only to their loss, but also to the spreading of diseases among the population. In the work was studied the landfill in Tishna village of Mezhigorskiy district of Zakarpattya region. It was revealed that this landfill is operated with violations of requirements of environmental legislation, norms and standards of environmental safety. The chemical composition of soils at Tishna landfill was studied. In the soil samples taken in the territory of the landfill, found a large amount of nitrite and nitrate ions, which is much higher than a similar indicator of control soils. In order to determine the impact of landfills on the health of the population of the district using statistical data, a comparison of morbidity and disease prevalence among the population of Mezhigorskiy district and Zakarpattia region by major classes of diseases for the period 2015-2017. The authors have established that the presence of unauthorized dumps may contribute to an increase in the incidence of diseases of the following classes: the nervous system, some infectious and parasitic diseases, endocrine system, eating disorders and metabolic disorders, injuries, poisoning and some other consequences of exposure to external factors, diseases of the blood and hematopoietic organs and certain disorders involving the immune mechanism.