The development of a mobile waste incineration plant designed for the recovery of garbage dumps located near towns and villages, from where the removal of garbage to the city to the incineration plant is not profitable due to the large remoteness of small settlements from the city. The installation has two combustion zones: in the 1st zone, the combustion process of solid municipal waste (MSW) is achieved at temperatures up to 600 °C, and in the second zone – up to 1200 °C. Afterburning of flue gas to reduce the formation of dioxins, furans and soot is provided.

The problem of utilizing biogas from landfills is described. The chemical composition of biogas macrocomponents and microcomponents is considered. The developed technological scheme of biogas processing with the production of liquefied carbon dioxide is presented.

The results of studies of cutting fluids on three types of solvents are presented: distilled water, tap water and treated surface effluents of the factory. It has been proven that replacing tap water with treated surface wastewater when preparing soda-nitrite solutions does not affect the operational and functional properties of the coolant. The possibility of using the treated surface runoff of a bearing factory for the preparation of coagulant solutions for the purpose of using it in the purification of emulsion wastewater has been confirmed. Shown are the directions of recycling waste treatment of the surface runoff of the factory, in particular in the construction industry in the production of asphalt concrete.

Quantitative, physicochemical, toxicological and microbiological characteristics of sewage sludge accumulated on sewage sludge cards of Municipal Unitary Enterprise Vodokanal in Kazan are determined. The use of sewage sludge for land restoration and as organic fertilizers is limited by the high content of bacteria of the group of Escherichia coli and heavy metals. Considering the significant volumes of sewage sludge, a method for their restoration directly in sewage sludge cards using quicklime and zeolite is proposed. Experiments have shown that the introduction of calcium oxide and activated zeolite in the amount of 2.5–5.0 % and 20–30 % by weight of the raw sludge, respectively, stops the fermentation processes, provides disinfection, dehydration and structuring of sewage sludge, promotes the immobilization of heavy metals. The intensity of ammonia release into the atmosphere was determined for different technological parameters of sewage sludge treatment.

A new approach to the mathematical modeling of packed absorption columns operating in the emulsification mode, which makes it possible to estimate the actual surface of the contact phase of the mass transfer products is presented. Equations for calculating the average diameter of the gas phase bubbles, the thickness of the liquid film between the bubbles in the packed absorption mass-exchange column operating in the emulsification mode are derived on the basis of the equality of the formation energy of the phase interface and the base of their overcoming the hydraulic resistance. A comparison of technological and geometric parameters of a typical packed absorption column with Raschig rings and a column with S-Aisi316Tiε-0.82 packing material based on the metalworked wastes.

The results of experimental studies to assess the effect of humic preparations on the processes of microbiological remediation of soils contaminated with oil products of various fractions (gasoline, diesel fuel, fuel oil) is presented. The object of the study was humic preparations, different in their state of aggregation, sources and isolation technology. The evaluation criterion was the degree of degradation of oil products in contaminated soils with the combined use of industrial microbiological destructors and humic preparations. It was found that the introduction of humic preparations into the soil contaminated with oil products stimulates the processes of their microbiological remediation. Thus, the degree of degradation of oil products under the influence of humic preparations increases by 10–70 %, depending on the properties of the oil products themselves, as well as on the characteristics of the introduced preparations.

The results of a study on the adsorption of oil products and heavy metal ions by modified zeolites from industrial wastewater are presented. As a modifier of zeolites of the Holinsky deposit, a sulfur polymer is proposed that is obtained from waste during the production of epichlorohydrin, the main components of which is 1,2,3-trichloropropane. The mechanisms of adsorption and the results of investigations by the methods of infra-red pectroscopy and energy differential X-ray spectroscopy of the initial samples of materials are described in detail. On the Irspectres new absorption bands are considered. These bands reflect the nature of fixation of modifier on the surface of sorbent. Also the results of original investigations of the thermodynamic laws of sorption extraction of Ni²⁺, Zn²⁺, Cu²⁺ from wastewater are presented. The limiting parameters of the adsorption process are described by the Langmuir equation. The graphical method the limiting value of adsorption, the adsorption equilibrium constant, the differential heat of adsorption, the adsorption rate constant, the activation energy, the Gibbs energy was founded. It is proved that the investigated processes obey the laws of physical adsorption and are spontaneous.

A generalized analysis of the concept of "biodiversity" used in social practice of ecological movements is presented. The position is expressed about an extremely narrow interpretation and perception in society of mainly commercial and political goals, using the methodology of the "zombie economics" of the modern world order. Public data on biodiversity loss over the past half century and the need to correct their perception taking into account other sources have been assessed. The need was expressed to form an expanded understanding of biodiversity on the planet in a form accessible to every inhabitant within the limits of his natural environment in the process of work and life. It is proposed to use it within the framework of environmental education programs and the formation of environmental culture among the population.

The results of the study of the ecological condition of small watercourse in the areas of influence of various mainly organic, agricultural sources of pollution are presented. In terms of contamination with organic matter and compounds of biogenic elements, the watercourse belongs to the category "very dirty" and hypertrophied. Ammonium ions are shown to be a priority pollutant of the watercourse. Biotesting and laboratory modeling methods have studied their effect on Daphnia magna Sr. hydrobiont filters on the mortality of the daily young with 96 hours of cultivation. It has been established that nitrifying bacteria have a wide range of tolerance to ammonium nitrogen. The optimal concentration for their life is the concentration of N_NH4+ and 3.2 mg/dm³. Ammonium nitrogen is toxic to Daphnia magna Sr. freshwater rhacies at a concentration of more than 4 MPC (1.6 mg/dm³). It is noted that the system of environmental control of small rivers should be revised towards tightening, since it is the small watercourses that serve as the numerous primary contaminants of large river basins.

An overview of the main methods of cleaning oil-contaminated wastewater, intensified by ultrasonic action, is given. The advantages and disadvantages of the methods, as well as the advantages of methods when using ultrasound are noted. It is shown that ultrasound does not replace the existing methods of purification of oil-contaminated wastewater, but only selectively supplements them, which is primarily associated with synergistic effects arising in water purification processes.

A critical analysis of the existing approaches to monitoring the main parameters of the environmental safety of industrial production is presented, a number of shortcomings are revealed associated with the limited compliance methods for assessing the compliance of environmental indicators with current standards, or the degree of information transparency of companies; the lack of consideration of the impact of dividend and investment policies of companies on the environmental safety of industrial production; lack of comparability of environmental performance in public reports. The scientific novelty of the proposed monitoring lies in the use of a systematic approach to the formation of the main parameters of environmental safety and the expansion of monitoring directions by including trends in the relationship between economic and environmental indicators calculated from the data of public reports of companies. The study was carried out on the example of the metallurgical industry in Russia, which made it possible to assess the representativeness of environmental reports and trends in the environmental safety of the industry.

The article presents the results of research on the development of methods for processing energy crops – Miscanthus into industrial products with high added value: paper, ethanol. Data on crop yield and the quality of the resulting cellulose-containing raw materials are presented. In field experiments, the possibility of effective cultivation of perennial Miscanthus plantations in the continental regions of Russia was established. The favorable ecological impact of Miscanthus planting on the agricultural landscape was revealed.