The directions of utilization of production wastes of the second level, namely, residues of surface and emulsion waste waters treatment of a bearing factory, are given. The results of studies of a new composition of asphalt concrete mixture obtained on the basis of foam, sludge from the treatment of surface water and oily sludge from the treatment of emulsion wastewater from a bearing factory are presented. A technological scheme for the reuse of waste water from surface and emulsion wastewater treatment at a bearing factory has been developed.

Methods of reducing the environmental hazard during storage of spent cleaning masses formed in the production of acetylene by the wet method are considered. The optimal conditions for the process of neutralizing the waste of the cleaning mass accumulating at the stage of trapping phosphine and hydrogen sulfide in the process of obtaining acetylene by the carbide method have been established. Ways of regeneration of a solid carrier included in the composition of cleaning masses are proposed. The possibility of secondary use of the regenerated solid support — expanded pearlite — has been investigated. A scheme for the neutralization of wastes from the production of carbide acetylene is presented. Methods for restoring the absorption capacity of a solid carrier are proposed. The prospect of using partially regenerated waste from the stage of washing soluble compounds containing sparingly soluble phosphates for mulching soils and increasing the influx of an important biogenic element for plant nutrition and growth is shown.

An electrochemical method for neutralizing "acidic" industrial effluents is presented. The dependences of the electrical conductivity of industrial water on the neutralization time on platinum and steel electrodes are compared.

A comparative analysis of ash and slag waste (ASW) of six deposits, differing in quantitative chemical and phase composition, granulometry, melting temperature and other properties, is presented, and the production of a material promising for the construction industry is proposed – aggloporite, the production technology of which practically does not depend on the composition and properties of TPP ash. Aggloporite can also be used in road construction to form side slopes. The proposed method of recovery of large volumes of ash and slag waste accumulated at a number of power plants opens up opportunities to improve the environmental situation in the areas located in the vicinity of coal power plants, free up significant land areas occupied by ash and slag waste storage facilities, and reduce the harmful effect of waste on soil, water and air.

The data on the dynamics of e-waste generation in different countries are presented and modern methods of handling this type of waste are analyzed. The characteristics of the component composition of electronic waste are given. The problem of neutralization and disposal of mobile phone screens has been studied. An analysis of possible methods for extracting metals from electronic waste has been carried out, which has shown the promise of a biotechnological method based on the ability of the biomass of microscopic algae to selectively, under certain conditions, sorbs metals. Based on the analysis of the research results of domestic and foreign scientists presented in the literature the process of extracting indium from the screens of mobile phones using microscopic algae was simulated under laboratory conditions. When justifying the choice of indium as an extractable metal, two criteria were used: limited distribution in the earth's crust and the difficulty of obtaining from natural ores, as well as demand in various industries. In experimental studies, the parameters of the effective extraction of indium by the biosorption method have been determined.

The possibilities of using remote sensing of the Earth data to assess the formation of phytocenoses at reclaimed dumps and landfills are presented. The objects of study are landfills and dumps in the Perm Territory, which differed from each other in the types and timing of reclamation work. The state of the vegetation cover on the reclaimed and self-overgrowing objects was compared with the reference plots with naturally formed herbage of zonal meadow vegetation. The process of reclamation of the territory of closed landfills was assessed by the presence and homogeneity of the vegetation layer and by the values of the vegetation index NDVI. To identify the dynamics of changes in the vegetation cover, we used multi-temporal satellite images from the open resources of Google Earth and images in the visible and infrared ranges of the Landsat-5/TM and Landsat-8/OLI satellites. It is shown that the data of remote sensing of the Earth, in particular the analysis of vegetation indices, can be used to assess the dynamics of overgrowing of territories of reclaimed waste disposal facilities, as well as an additional and cost-effective method for monitoring the restoration of previously disturbed territories.

The results of assessing the state of surface water bodies located in the zone of influence of the closed landfill of industrial and household waste "Shcherbinka" (Domodedovsky district of the Moscow region) are presented. The toxicity of river and waste waters of the landfill was determined by the biological effect on two species of higher plants – oats sowing (Avena sativa) and watercress (Lepidium sativum). As test reactions, the length of the roots of oat seedlings, the germination and length of seedlings of watercress seeds were used. It was found that wastewater from the surface and body of the landfill has a pronounced phytotoxic effect (52–98 %), which manifests itself in the suppression of all the assessed indicators. The high toxicity of river water in the place of discharge of leachate from the waste disposal facility was shown (the phytoeffect value reaches 37 %). As you move away from the source of pollution (when moving downstream of the river), mixing the leachate with river water reduces the concentration of chemicals in the waters to levels that are safe for plants. The values of the estimated indicators obtained during biotesting of river waters at a distance from the landfill are comparable with the control ones. The experiment revealed a similar sensitivity to toxicants of two plants selected as test objects.

The evaluation issues on the aggregate’s extraction on the ecosystem of bodies of water has been considered. The dredgers' impact of various capacities on bodies of water of different capacities have been compared, as well as on food supply change of bodies of water for benthos eater. The research findings have showed the dragger's impact of a higher capacity is bigger on a large body of water than this of a lower capacity on a small body of water. The impact manifests itself in decreasing the number and biomass of macrozoobenthos in the area used for the oil and lubricants extraction and the downstream flow. It has been found that the complete destruction of macrozoobenthos at the site of hydraulic engineering activities has not been detected either in small rivers or in large reservoirs.

The transformation of the concept of "habitat" in connection with the arrival of the COVID-19 pandemic is considered. It is shown that in the problem of understanding the content of the concept of "habitat" it is necessary to include not only objects of the bone and living nature of the macrocosm, but also organisms of the microcosm. The analysis of epidemics and catastrophes in the history of mankind caused by natural events is presented. The possibilities of economic recovery within the framework of the "Concept of Sustainable Development" in the post-pandemic period are discussed. The necessity of focusing the attention of science, business, public organizations, governing elites and administration on the real needs of ensuring the environmental safety of the living and their descendants in connection with climate change is noted.

The analysis of the main approaches to the assessment of environmental safety is presented. The requirements for environmental safety measurement are justified. The relationship between safety and development, safety and danger are revealed. The approach to the environmental safety methodology is proposed. The goals of environmental safety are justified. The article analyzes life expectancy as the indicator of environmental safety and its dependence on other priorities of the state development, such as the cost of childbirth and raising children, support for pregnant and nursing mothers, care for pensioners (the size of pensions, their indexation, retirement age), the cost of ensuring industrial and transport safety, etc. The indicators that determine the quality (state) of the natural environment as maximum permissible environmental loads and the degree of proximity of the ecosystem state to the border of its stability are considered in the article. The possibility and advantages of using the assessment of the photosynthetic organisms (photosynthetics) state as the indicator of environmental safety are substantiated. The possibility of using the other integral biota state indicators to assess environmental safety is shown in the article.

Indicators of the permissible content of oil and products of its transformation for podzols of illuvial-ferruginous, sod-podzolic, peat boggy raised soils of the Perm territory are presented. The sampling of the selected soil types was carried out, with which experiments on phytotesting, biotesting of the quality of water extracts with differentiated oil pollution were carried out. The assessment of chronic phytotoxicity was carried out according to the reaction of three species of terrestrial plants: spring wheat, pea sowing, and hybrid spruce. The water extract of contaminated soils was tested on chlorella and daphnia. As a result, quantitative indicators of the permissible concentration of hydrocarbons in soils after reclamation for agricultural and forestry lands were obtained.

The findings of the researches on the geoecological conditions of the natural environmental components if discharging chemical-pharmaceutical effluents into surface watercourse have been given consideration and the methodology of the ecological situation based on geoecological risks has been developped. The effluents composition study of the plant purification facilities has been performed, the pollutants composition and concentration, including heavy metals, oil products, radioactive substances, volatile and semi-volatile compounds have been studied. The quantitive evaluation of the environmental and economic damage to the river Shalovka caused by the poor operational waste discharged has been performed. Compensatory environmental actions to implement innovative modern technologies for deepening purification of contaminated effluents will improve the geoecological situation in the area.