The article is devoted to the use of natural minerals in water treatment. The paper presents the results of a study of the sorption properties of the opoka. The study showed the advantages of flask membranes compared to those deposited with silicic acid. The optimal conditions for the modification of the flask were determined, which make it possible to purify water from metal impurities to the required level.

Keywords: groundwater, water purification, deferrization, membrane, deposited membrane, sorption methods, flask, polyacrylamide

This article discusses the new technological solutions for the installation of green roof structures. The developed technologies are aimed at solving the problems of improving the environmental safety of construction production, improving the comfort level of the urban environment, and improving the urban appearance. Green roof structures are considered as a way to reduce the concentration of dust pollution and its spread, including from construction production by implementing this technology in the design and construction of residential neighborhoods, where there is a phased commissioning of facilities and residents of already populated homes experience the effects of pollution from objects being built in the neighborhood. The article describes in detail the characteristics of two developed green roof structures that can be used in the design and construction of new facilities, as well as in the reconstruction of existing buildings, describes the device technology, and calculates the cost of installation. These technological solutions allow you to save labor costs during construction work, by reducing the increase in the incidence of workers and, accordingly, reducing the cost of construction work.

Keywords: environmental safety, green roof, phytoecology, atmospheric air protection, ecology in construction, dust suppression, dust settling, construction in confined conditions, roof, landscaping system

The air basin of cities is subject to significant pollution, including waste gases of power plants. However, they are a necessary element of the life support system of urban areas and cannot be taken outside the city. Therefore, the problem of proper selection of structural elements and operational characteristics of the process and system for reducing air pollution becomes very important. Our scheme of transformation of pollutants within the framework of the physical and energy approach allows to determine possible types of effects on gaseous pollutants, to control their behavior in order to reduce stability and, ultimately, to reduce pollution of the air basin.

Keywords: energetic installations, exhaust gas purification, forced dispersion, gaseous polluting aerosol, property parameters, energy parameters, stability of polluting aerosol

This article discusses the possibility of managing environmental and economic risks of investment projects. Environmental efficiency is an important indicator in assessing the effectiveness of an investment project. It is revealed that when assessing the environmental efficiency of an investment project, it is necessary to use the established standards and agreements, normative legal acts in the field of environmental law. However, the legislation in the Russian Federation in the field of environmental risk assessment requires accurate calculations that will facilitate the task of the investor in the field of adoption of an effective investment project. It is analyzed that the final decision on the implementation of the project depends on the quality of the assessment.

Keywords: Efficiency, investment, risk, uncertainty, investment project, ecology, factor, criterion, implementation

The article considers the main sources of urban air pollution. The growth dynamics of vehicles in the city of Volgograd is shown. The law of the distribution of the concentration of carbon monoxide for a different category of roads (urban, regional and local values), both for the measured and calculated concentration of CO, is derived. It is shown that the concentration of CO on the curb of the roadway of different categories of highways is characterized by a mixed Gaussian distribution.

Keywords: carbon monoxide, category of highways, city significance, regional significance, local significance, main sources of pollution, primary areas, mixed Gaussian distribution, field studies, density function

The article is devoted to solving the current problem - improving the environmental safety of cities by using the specific functions of green plantations in the formation of the green frame belt. Analysis of advantages and disadvantages of existing methodological approaches to formation of "green frames" of cities allowed to systematize, select and scientifically justify estimated criteria taking into account climatic conditions, landscape, impact of anthropogenic factors, efficiency of creation of comfortable habitat and to develop methodology of formation and selection of "green frame" belt of cities.

Keywords: Greening of territories, "green frame" of the city, "green frame" core, "green frame" belt, urban forests, method of formation and selection of "green frame" belt

To assess the impact of various groups of sources of emissions in urban pollution, there is a method that can be called the main one - the assessment of the contribution to total gross emissions. But this method does not take into account the significant features of dispersion of pollutant emissions in the atmosphere, as well as the specifics of the mechanisms of formation of concentrations of pollutants at a specific point in the city and the calculation of complex indicators of the level of air pollution in urban areas. The authors proposed a procedure for calculating the atmospheric pollution index for source groups using the “summary calculations” tool. The calculations were carried out on the licensed software product "Ecologist-city". Based on the calculations, conclusions were drawn on the reliability of determining the influence of various groups of emission sources on air pollution in the city of Krasnoyarsk, based on the assessment of contributions to the total gross emission in the city.

Keywords: atmosphere, air, ecology, ecology of urban areas, environmental safety, summary calculations, IZA

The results of the development of a polymer coating with high heat-insulating and fire-resistant characteristics containing waste from galvanic production are presented. This coating is designed for thermal insulation and fire protection of concrete and metal surfaces of various building structures and industrial equipment. The coating is developed on the basis of siloxane rubber, K-18 catalyst, hollow carbon microspheres and industrial waste - galvanic sludge used as a flame retardant. The use of hollow carbon microspheres provides an increase in the strength and thermal insulation properties of the coating. The use of galvanic slurry in the amount of 5-15 parts by weight it allows to obtain the effect of self-extinguishing of the heat-insulating coating, reducing the burning time without compromising the operational properties - strength, adhesion, while solving another important problem - the safe disposal of galvanic sludge. Studies have shown that the use of this composition allows you to get a relatively inexpensive, but quite effective polymer coating with good thermal insulation, flame retardant and physico-mechanical properties.

Keywords: polymer coating, siloxane rubber, hollow carbon microspheres, galvanic sludge, thermal conductivity, strength, self-extinguishing effect, safe disposal

The article proposes a method of automatic recognition of the type of building for an environmental monitoring system. based on convolutional neural networks. To train the neural network, the Keras library was chosen, containing numerous implementations of the main components of neural networks, such as layers, target and transfer functions, optimizers, and many tools to simplify working with images and text. The processes of network implementation using the Google Colab cloud platform, the preparation of a training set, the training of a constructed neural network, and its testing during training are described. The result of this work is a convolutional neural network model, capable of determining with accuracy of the order of 90-92 percent what type of buildings is shown on the cartographic image, which allows us to automate this process and use it as a subsystem for the environmental monitoring system of atmospheric air.

Keywords: environmental monitoring system for air, building type recognition, convolutional neural networks, machine learning, computer vision

The article touches on the relevance of the problem of ecology in the world, considers a way to improve the microclimate of the city and individual buildings, residential and public, by using vertical gardening. The main advantages of vertical landscaping of facades are given: increasing the sound insulation of premises, improving the microclimate, reducing the energy consumption of the building, as well as taking into account the process of photosynthesis itself, which supplies the environment with oxygen, and the absorption of harmful emissions by plants. The most striking examples of "green" architecture in the world are given:"Vertical forest" in Milan and "Nanjing Green Towers", as well as the use of a new way to" revive " the environment in Russia and the introduction of regulatory documents regulating environmental requirements for real estate.

Keywords: landscaping, ecology, vertical gardening, high-rise building, eco-friendly skyscraper, aesthetics, "vertical forest"," green " architecture, phytostain, phytocartin, rating system for assessing the sustainability of the environment

The possibility of increasing the reliability of assessing air pollution through the use of probabilistic methods is shown. Evaluation of quality indicators on a quantitative basis made it possible to find an error of the first and second kind in assessing the quality of the atmosphere. Based on the Bayesian approach, dependencies were obtained for estimating and predicting atmospheric pollution in the area of ​​a city that does not have a stationary post, based on data from stationary posts in other areas.

Keywords: atmosphere quality, reliability of the estimate, probabilistic methods, quantitative characteristic, error of the first and second kind, Bayesian approach, a priori probability, posterior probability, likelihood of a quantity

The equations of multiple regression of air quality from factors affecting external sources of emission in the urban environment are obtained. A prototype of a forced air supply ventilation valve with air purification, placed in the outer wall of the building, using various sorbents together with a photocatalytic filter (a thin porous plate coated with titanium dioxide next to two UV lamps, UV-A range, 365 nm, 6 W each) was developed. Full-scale studies of five options for purifying the supply air were carried out. High quality of outdoor air purification from pollutants has the following options: shungite; zeolite; silica gel; photocatalytic filter, its purification efficiency was 96.39-99.98% for carbon oxide (II), 96.39-97.89% for phenol, 95.76-97.78% for formaldehyde, and 93.97-95.12% for aliphatic hydrocarbons (C1-C5). The results obtained can be used in multi-storey construction.

Keywords: forced air supply valve, prototype, pollutants, sorbent, shungite, zeolite, silica gel, photocatalytic filter

A review of odorizing substances in natural waters is carried out. The stages at which odorizing substances can be introduced into water are considered. The characteristic of odorizing substances introduced at each stage of water treatment is given. The sources of drinking water odorants are systematized in relation to the stages of water treatment and by type of origin. Methods for determining odorants in raw water are reviewed. The threshold sensations, the type of smell and the chemical formula of some odorizing substances are given.

Keywords: natural water treatment, water deodorization, odorants, water treatment, carbohydrate water, surface water sources

The article is devoted to the issue of improving the environmental safety of highly urbanized territories. The article presents the results of field measurements of pollutants into the atmosphere from gas stations within the urbanized territories of cities of the Russian Federation. The largest part of the allocation of oil product vapors entering the local aspiration systems is associated with the operations of filling and emptying fuel storage tanks at gas stations. The results of field measurements of the values of hydrocarbon concentrations obtained on the basis of the values of maximum permissible concentrations of ingredients are presented. The conclusion is drawn on the feasibility of environmental protection measures to reduce emissions when finding housing in the border area of the sanitary protection zone (SPZ) of gas stations. To reduce emissions from gas station sources, it was proposed to equip the gas aspiration system of the gas feeling tank with an improved design of the absorption device. In order to reduce waste generation as a working agent in such devices, it was proposed to use wastewater with a certain amount of oil products from a local gas station treatment device. This approach also allows to reduce the negative anthropogenic impact of gas stations in terms of the formation of additional amounts of waste generated during their operation. Successful tests have shown reliable and efficient operation of the pilot plant with the proposed apparatus.

Keywords: gas station, gasoline, emission, atmosphere, concentration, hydrocarbons, aspiration, reservoir, pollution, oil product, pollution, water

he article presents the results of evaluating the ability of activated sludge, saturated with anammox bacteria, to adapt to mesophilic and lower temperature operating conditions. As the main temperature regimes, temperatures of 30, 25, 15, and 13 ° C were selected. The system showed stable operation at temperatures up to 15 ° С with the highest degree of purification with respect to ammonium nitrogen - 0.33 mg / dm3. At the same time, the concentration of nitrites taking into account forced nitritation reached 0.07 mg / dm3. An additional increase in the efficiency of the system requires structural changes in the adopted technological scheme of the bioreactor, however, the introduction of an internal recirculation system of attached biomass (with load) inside the anammox department is considered as an essential element of the system that ensures stability

Keywords: nitrification, denitrification, activated sludge, aeration tank, anammox, biological treatment, domestic wastewater, low-oxygen treatment method, energy saving, resource saving, ecology

The article considers the results of development of water treatment technology for household drinking water in Semey, presents a comparative analysis of widely used disinfectants, and considers technological schemes for water disinfection with chlorine dioxide and a combined disinfectant " chlorine dioxide and chlorine".

Keywords: household drinking water, disinfectants, chlorine

The article addresses issues related to the definition of particulate matter characteristics in the air of roadside areas. Fine suspended solid particles (TPM) of different size -10 and 2.5 μm are one of the main characteristics of atmospheric air quality. When monitoring the air environment on the maintenance of the firm weighed particles two indicators are used and normalized: PM2.5, PM10 are the firm weighed particles (English Particulate Matter, PM) with an aerodynamic diameter of 2.5 microns or less; Solid suspended particles with aerodynamic diameter of 10 microns or less. Dust particles from traffic are seen as an increasingly important source of air pollution, as the vehicle fleet is increasing worldwide, hence exhaust gas emissions, as well as particles from tire abrasion and road surface wear. Studies were carried out on the dust content of the roadside territories of the city of Volgograd. The article also pays attention to air quality indices, which will be used in monitoring the air environment of urban areas.

Keywords: motor transport, dust, road dust, the firm weighed particles, PM2.5, PM10, the atmosphere, the air environment, ecology, ecology of the urbanized territories, environmental safety

An important problem of modern ecology is air pollution for most cities. Studies show that the largest danger to the human body is particles up to 10 microns in size, therefore, the content of suspended solids PM10 and PM2.5 (concentration) is controlled. The article presents the results of studies of air pollution with fine dust in the winter season

Keywords: dust, dispersed materials, suspended solids, PM2.5, PM10, atmosphere, air, ecology, ecology of urban areas, environmental safety

The paper analyzes the conditions for the formation of a microclimate of urban residential area with high-rise buildings. High-rise buildings in big cities have a double influence on the living environment – on the one hand, they change wind loads, and on the other hand they affect the direction and speed of the wind. The environmentally unfavorable zones of high-rise buildings, as well as the causes and sources of pollution, such as emerging transport and engineering infrastructure due to development of high-rise housing, have been identified. In high-rise housing areas, zones with impaired air exchange, which contribute to the formation of the “heat island”, have been indicated.

Keywords: urbanization; ecology; high-rise building; urban development; heat island; ascending air flow; temperature inversion; microclimatic conditions; terrain aerodynamics; living environment

Laboratory equipment necessary for studying the fractional composition of dust in the air of an industrial enterprise and at the border of its sanitary protection zone is proposed. harmful substances, as well as determine the dispersion of dust emitted into the air. the organization and development of new products on existing production sites.

Keywords: dust, dispersion, measurement, air, laboratory, instrument, material, filter, particle, industry, concentration, sample

This article presents an analysis of promising areas of development of the construction market by region. One of the most environmentally friendly and practical 3D printing methods using additive building technology is considered, the problem of environmental pollution is touched upon, alternatives to traditional building materials are proposed through the processing of agricultural and construction waste products and their subsequent use in building printing. The advantages of using this method during construction in emergency situations and in adverse climatic conditions are highlighted. The Gaia experiment, a printed eco-house, is presented.

Keywords: additive technologies, 3D printing, 3D printer, construction industry, construction

It is accepted to use sand and sawdust at overflows and leaks of oil products in urban environment. It is allowed to use sorbents. Existing requirements to sorbents which are used for collecting oil and oil products were analyzed on the basis of normative-technical documentation and scientific publications in the article. The necessity of modification and addition of the existing requirements was revealed. The requirements to sorbents for collecting overflows and leaks of oil products in the urban environment were developed.

Keywords: sorbents, requirements to sorbents, collecting, oil product, product, overflow, leak, urban environment

The influence of road transport on the formation of noise along highways is considered. The proposed options for protecting against noise from the roads.

Keywords: linear city, noise, vehicles, main roads, road categories, noise control

The article considers a number of the most significant factors affecting the dispersion of pollutants in the air. The influence of meteorological conditions on the dispersion of pollutants in the atmospheric air by various methods of calculating the dispersion is considered.

Keywords: linear city, noise, vehicles, main roads, road categories, noise control

The article presents the results of complex geophysical studies to assess the environmental safety of the construction of wind power tower installations in order to prevent their design and construction in technogenic and tectonically disturbed zones on the territories of mountain branches of closed mines in the Eastern Donbass. The brief essence of electrical exploration technologies of electroprospecting method by electrical spatial filtering (MPEF) and electro-potential tomographic sensing (EPTS). The information content of the technologies used in conjunction with standard geophysical methods of electrical exploration (vertical electric sounding and seismic survey method of refracted waves) is shown. The results of interpretation of data obtained in the field are discussed. The results of the research were: - identification of EPTS technologies of structural inhomogeneities of the geological section of coal-bearing deposits with their division into lithological (repetition of the form on the electric profiling graphs shifted by the step of the feed line transfer) and tectonic or technogenic ones (difference electric probe curves at adjacent points) - detailing of destructive zones identified by EPTS using MPEF technology: 1) inversions of electro-profiling graphs registered with multidirectional electric field excitation. 2) displacement of inversion points in places where tectonic discontinuities are present in the coal-bearing column.

Keywords: complex of geophysical research, wind power stations, electrical and seismic methods, coal-bearing thickness, rock formations, tectonic discontinuities, mine workings, interpretation of geophysical materials