The results of experimental studies on isolation of poly-charged metals cations from man-made waters, which are valuable components, are presented. For their isolation and concentration, the method of homogenous sedimentation was used, which provides self-purification of water bodies in natural conditions and is responsible for the formation of bottom sediments. To implement these processes, energy-consuming low-pressure membrane methods were used- nanofiltration and dialysis, which creates conditions for the formation of solid solutions inside the composite membrane and do not require additional dosage of reagents. With the help of such combination, it was possible to obtain conditionally clean water for technical and household use, to divert environmentally friendly waste waters to the hydrographic network of the region. In addition, the shape of resulting original “ore body” simplifies its processing into individual components. It is noted the use of membrane reactors makes it possible to implement the homogenous deposition regime, which ensures the isolation of transition metals in the form of solid solutions with natural components of surface waters.

Experimental-industrial tests of thermoreactor with a spiral conveying body of combined action were carried out and results were obtained for creation of technology for low-temperature thermolysis of “MSW tails”. A technology has been developed for integrated processing at individual technological stages with the receipt of various types of commercial products and with minimization of the disposal of MSW’s “tails” to the landfill. Recommendations for the use of complex MSW processing with the application of low-temperature thermolysis.

The paper discusses the questions of municipal solid waste landfills assessment and their impact on the environment during landfill lifespan. The results of waste stabilization processes with different disposal periods using laboratory modeling in bioreactors are presented. Based on physicochemical and biochemical indicators the degree of waste decomposition in relation to the waste disposal time has been determined. Based on the thermal analysis data it has been shown that the intensity of heat flows and mass losses decrease during waste decomposition and the increase of waste stability. It was found that the results of waste stabilization laboratory modeling for the young landfill and the old dump site are similar to the results of field study.

In order to integrate and improve the environmental friendliness of oil refining and petrochemical industries, the possibility of using by-products of existing enterprises of SC "APC" and SC "APP" in the preparation of low-viscosity marine fuel that meets the requirements of TU (Specification) 38.101567-2014 and TR CU 013/2011 was considered. According to the results of research, a new way of using low-molecularweight polyethylene was found, its effectiveness on the pour point of low-viscosity marine fuel with a content of weighted average distillate fractions of up to 75%, including by-products (heavy diesel fraction of the GK-3 unit, weighted diesel fractions from the vacuum columns of the AVT-6 and GK-3 units, light delayed coker gas). It is shown that the use of low-molecular-weight polyethylene will eliminate the use of expensive depressant additives from the preparation of low-viscosity marine fuel and obtain a positive economic effect.

A method is proposed for determining the mass of oil pollution per unit area of bottom sediments of water bodies, which makes it possible to associate pollution not only with the concentration of pollutants, but also with the area of the reservoir. The article uses the results obtained during the implementation of the project (No. 8.2.13.2020), within the framework of the Competitiveness Improvement Program of Tomsk State University.

The impact of floods on the migration activity of elements coming from urbanized territories to the Amur river was assessed. The influence of large cities on pollution of water and floodplain ecosystems is revealed. The content of heavy metals in water, bottom sediments, and small watercourses draining urban areas is characterized. The processes of sediment accumulation in the floodplain, their influence on the redistribution of elements and geochemical transformations in the soil space of floodplain soils are studied. Conditions for the accumulation of heavy metals in soils are described, their concentration levels and migration activity are determined. The role of organic matter in swamps and silts on water pollution and bottom sediments of the Amur river is shown. It was found that the main mass transfer of soluble substances and pollutants dispersed fractions of nailc is carried out by water flow during floods.

Proposed methodological approaches to constructing a component profile of dust mixtures of an industrial enterprise based on quantitative chemical analysis of solid emissions and a description of the morphology of particles. Examples of stable in component composition and structure of dusts emitted by sources of different industries are given, the operations of which can be considered as emission “profile”. The experience of using the emission profile in assessing the share contribution of a source to air pollution at a control point is described. The updated data on the dust profile of the emission make it possible to establish the contribution of the economic entity itself to the level of atmospheric air pollution in the territory, to identify priority emission sources, to reliably form a program for monitoring and control over special polluting substances.

Geotechnical properties and material composition of loparite ore dressing tailings have been investigated. It was established that already at the stage of waste storage, heterogeneity of the material composition and contents of valuable components is formed. The average content of loparite and eudialyte in the refinement tailings is 1.1 and 0.5%, respectively. The effective specific activity of natural radionuclides ²²⁶Ra, ²³²Th and ⁴⁰K and investigated samples is in range values 646±21 – 1300±24 Bk/kg. When leaching samples of tailings in distilled water, the concentration of fluorineions in the water extract significantly exceeds the MPC of water bodies for fishery and household purposes. By phytotesting it was found that water extracts of tailings and its dilution – enrichment do not have a significant toxic effect on the growths of higher plants.

In stationary field experiments in the forest-steppe of Western Siberia, it was shown that long-term agricultural use of soil without the use of fertilizers caused a decrease in the soil content of heavy metals related to plant micronutrients — Cu, Zn, Co; the level of Pb, Cr, Sr has changed slightly. It was established that the long-term application of high, agronomically justified doses of mineral fertilizers, accompanied by a significant increase in the yield of cultivated crops, did not lead to an increase in the content of HM in the soil, compared with not fertilized areas. It was revealed that the unbalanced use of fertilizers, not ensured by the growth of crop productivity, contributed to the accumulation of HM in the soil. The necessity of monitoring the agro-ecological state of soils of agrocenoses in order to identify both excessive accumulation of heavy metals and micronutrient deficiency is substantiated.

The article is devoted to the analysis of electromagnetic radiation of fifth generation (5G) networks. The characteristic of the 5G electromagnetic radiation spectrum and its features is given. The main advantages of implementing 5G networks proceeding from the Concept of the Ministry of communications of Russia are analyzed, including the Internet of Things, artificial intelligence, augmented, extended reality, and virtual reality. Nine ways in which 5G and IoT will cause serious harm to people, wildlife, and our Earth are summarized. The conclusions of the Concept are being questioned. The article analyzes the results that the military personnel is expecting from the 5G network, including the introduction of hypersonic weapons, the creation of "smart military bases", "combat networks", the use of "portable combat items", drones, non-lethal, directed energy electronic weapons. It is justified: how does 5G differ qualitatively and quantitatively from 4G in its impact on human health. Based on the appeal of scientists and environmental organizations from 219 countries to the UN, the WTO, the EU, the Council of Europe and the governments of all States, the demand for the immediate termination of the deployment of a 5G wireless network on Earth and in space is justified.

The main approaches to planning activities for the management of waste spills, based on best practices, developed by oil and gas companies and associations, are analyzed. The problems of the accumulation and disposal of waste spills, the problems of preparing the waste for further disposal methods are indicated. The variety of spill waste does not allow to determine a universal way to manage this waste, therefore it seems necessary to develop a response and management strategy and include potential material resources for their disposal, equipment and technologies in the OSR plans, in order to avoid secondary pollution and minimize the cost of eliminating spills.