To reduce the impact of alumina sludge storage on the environment, a number of environmental technical solutions have been tested and implemented. Laying a polymeric film on a bed slurry maps and the construction of artificial water level decrease led to the absence of anthropogenic interference, and created favorable conditions for ensuring the stability of the ecological system in the area adjacent to the sludge storage. After the implementation of the environmental events area negative impact of sludge decreased to 150–200 m from the contour of the slurry of the map, outside this zone there are qualitative changes in the chemical composition of groundwater, the alkaline reaction of the environment decreases less than 8.0 units, chemical composition of groundwater is virtually the same background.

A modified system for automatic control of hydrodynamic operating modes of packed adsorption columns for the selective cleaning of gas emissions is described, which allows automatic adjustment of the operating modes of packed mass transfer apparatus. Presents the scheme and algorithm of developed system with the automatic adjustment (calibration) mode of main operating parameters. The main features and advantages of using elastically deformable blocks of packed material are given on the example of metal chips, i.e. waste of machine tools as a packed material that meet all requirements of the ongoing mass transfer processes and are amenable to automated regulation. The developed system of automatic regulation of parameters of packed units, but also to solve a very serious environmental problem of industrial waste recovery. A classification technique of studying the hydrodynamics of packed materials, capable of concluding the suitability of this sample of packing material for a specific mass transfer process, in particular the adsorption process for the selective cleaning of gas emissions.

Currently on the territory of Russia implemented the installation of anaerobic thermal desorption of oil waste (АТDU). During the operation of the plants, a number of problems were identified leading to a decrease in the profitability and efficiency of processing. The conducted thermogravimetric analysis and study of thermal desorption of oil waste at the refinery laboratory facilities allowed to optimize the temperature regime and technological parameters of the waste disposal process at the ATDU plant.

Photochemical decomposition of phenol with a concentration of 5 to 24 mg/L using hydrogen peroxide and ultraviolet irradiation (UV/H₂O₂) was studied. Xenon flash lamp was chosen as a radiation source. It emits high-intensity continuous-spectrum radiation in a wide wavelength range from 200 to 1000 nm. The effect of the initial concentration of hydrogen peroxide and the source average radiation power on the phenol destruction rate were studied. An extremum in the dependence of the phenol decomposition rate constant on the initial concentration of hydrogen peroxide was found. Kinetic model of the process based on the obtained data was developed. It was tested by predicting phenol destruction rate with the different process parameters and gave good accuracy.

The results of the development of a raw mixture, which contains a filler obtained by grinding a mixture of small-sized wood waste based on light dirt varieties of coniferous and deciduous species, and a binder obtained by dissolving the waste products from polystyrene foam in methylene chloride, are presented. This mixture allows cold mixing and pressing followed by heat treatment at the boiling point of the solvent. In the course of experimental studies, the influence of the ratio of the mixture components and the pressing pressure on the basic properties and structure of the obtained composite material was established. The composition of the raw material mixture and the pressing were selected to ensure low thermal conductivity in combination with low values of water absorption and swelling density and strength compliant with regulatory requirements. Received thermal insulation material for construction purposes from wood and polymer waste, characterized by large volumes of formation and high rates of accumulation.

Presents the current environmental situation in the area of the former Aktash mercury mine in the south-east of the Altai Republic. The main sources of mercury releases to the environment and their location in the enterprise area have been identified. The leading role of waste redistribution of ores and imported mercury-containing waste in environmental pollution is shown. The main parameters of environmental damage within the identified large focus of mercury pollution of soil and vegetation cover are established. Its classification as an environmental emergency zone is justified. It is recommended that the Aktash mine district be included in the list of priority objects for eliminating accumulated environmental damage in the Russian Federation. The technological and environmental-economic aspects of the disposal of mercury-containing waste storage and disposal facilities are considered. The optimal approaches to carrying out rehabilitation measures in the mine area are outlined.

A method for pre-treatment of wastewater with the simultaneous production of biological surface-active substances (bio-surfactants) by deep cultivation of the microscopic fungus Hypomyces odoratus in the wastewater of a winery has been developed. In wastewater after cultivation of the fungus under aerobic conditions for 12 hours, a steady decrease in BOD was observed by 2.5 times, COD by 3 times, the content of suspended solids, sulfates, phosphates, ammonium ions, nitrates, nitrites, anionic surfactants decreased significantly substances (ACAS), cationic surfactants (CAS), wastewater in chemical composition began to approach the indicators of municipal sewage. The complexity of the composition obtained during the cultivation of the biomass fungus and the isolated exopolysaccharide contributed to a decrease in the surface tension of the oil and indicated that the fungus synthesizes the bio-surfactant complex. After contact with a 12-hour mass of fungus or exopolysaccharide obtained from biomass in highly viscous, water-flooded bituminized oil, an improvement in rheological indices was noted, and the water cut and content of paraffin deposits decreased.

The methods for the complex assessment of the geoenviromental situation in a mining region based on the integration of open data from the ROSREESTR (The Federal Service For State Registration, Cadastre And Cartography), the ROSPRIRODNADZOR (Federal Service for Supervision of Natural Resources), Google Earth, scientific publications and other sources, in particular, related to the analysis of neotectonic and geodynamic problems in the region are considered. The conclusions are made as a result of the analysis of the geoenviromental situation on the example of the Solikamsk urban district and the recommendations are proposed: a land management program and the formation of geoecological data in the Unified State Register of Real Estate quarters (polluted, degraded and disturbed lands) - as an information basis for the regional model of spatial planning of mining regions.

The features of the work of flue gas stack in non-ferrous metallurgy serving thermal installations for copper production are considered. On the example of the operation of two flue gas stacks of the copper smelting shop of OJSC SUMZ (Revda), with the help of which converter gases (pipe height 150 m) and suction gases from Vanyukov furnaces (pipe height 120 m) are removed, environmental studies were carried out and their operation was analyzed before and after changing the technology for producing matte at the factory. Recommendations are given on improving the environmental situation at the plant, some of which have been implemented. The results obtained in the work are of certain interest and can be used at other similar enterprises of non-ferrous metallurgy associated with the production of copper and using similar thermal units.

There are considered changes of automotive transports’ emission volumes factors on different territorial level. The emissions’ dynamic in Central Federal district and in Moscow was shown. At the local level the determining factor in vehicle pollutions’ is changing in building density and transport and planning structure. Pollution reduction in Moscow has a center-peripheral gradient and occurs in areas where the road network transformation is combined with the development of the public transport system.

A methodology for the ecological assessment of technologies for municipal solid waste (MSW) processing and solid recovered fuel (SRF) production is proposed, including calculations of direct, indirect and prevented greenhouse gas emissions at all stages of waste management, taking into account the composition of the waste, the properties of the individual components of the MSW and the characteristics of used equipment. The elemental balance of fossil and biogenic carbon was calculated for MSW management system. It is concluded that MSW processing with recyclables recovery and SRF production can reduce greenhouse gases release from 5.8 to 67.6 % with respect to waste disposal at the MSW landfill.