The article discusses the causes of accidents in water supply and sanitation systems. methods for improving the quality of drinking water in the construction and reconstruction of water pipes, the use of new materials to reduce breakdowns on networks are considered. the analysis of the durability of pipelines made of various materials is carried out, according to which it is concluded which material is the best in use for installation work. frequent destruction of pipes occurs from an aggressive environment, so a comparative analysis of various materials from which they are made: polyvinyl chloride, polypropylene, reinforced concrete, cast iron and fiberglass. due to poor-quality cleaning, there are environmental problems that occur when using old structures, lack of funding. It is concluded that fiberglass pipes can serve as a high-quality material.

Keywords: quality water, replacement of pipelines, water supply and sanitation, corrosion and destruction of pipes, new polymer material, pipe materials, comparison of pipes made of different materials, service life, wastewater treatment, ecology

The article deals with the laws of distribution of pollutants in a linear city. The highest values of carbon monoxide concentration were determined in the near-main territories of the Krasnoarmeysky district of Volgograd. Also in this paper, the question of the dependence of the level of gas pollution in the mainline areas on various factors, which include human activity and natural, natural factors, is raised. The influence of temperature inversions on the speed of pollution propagation and their limiting value in various points of the city is considered. For the experimental part, 18 points of technical measurements of CO concentration were taken, during which compliance with the MPC standards of the samples taken was revealed.

Keywords: linear city, district, law of distribution of carbon monoxide, transport of impurities, air pollution

The article is devoted to the issue of improving devices for cleaning gas station emissions from hydrocarbon vapors to improve the environmental safety of inhabitant zones and territories of residential development. It is known that emissions of benzene vapors belonging to the second hazard class have a significant problem in terms of exceeding the maximum permissible concentrations at the borders of the sanitary protection zones of gas stations and nearby residential buildings. The largest part of the release of gasoline vapors entering the local aspiration systems is associated with the filling and emptying of fuel storage tanks at gas stations. To reduce emissions from gas station sources, it is proposed to use absorption-type devices in gasoline vapor recovery units. The article presents the results of experiments on a pilot - industrial plant set up with an apparatus for cleaning gas station emissions from benzene and other hydrocarbon vapors using a solution of a mixture of natural sodium-magnesium salts. As a liquid sorbent in such devices, it was proposed to use waste water from a gas station purification device in order to reduce the additional amount of waste generated during their operation. Based on the results of processing the experimental data, a graphical dependence and regression equations were obtained. The areas of aerohydrodynamic regimes at which the highest efficiency is achieved for the parameters of the apparatus of the studied modification are determined. This approach also makes it possible to reduce the negative technogenic impact of gas stations in terms of the generation of additional waste. The successful tests carried out have shown the reliable and efficient operation of the pilot plant set up with the proposed device.

Keywords: gas station, gasoline, emission, atmosphere, fuel, hydrocarbons, aspiration, absorption, device, bischofite, water

Lignin is a natural polymer material, one of the main components of wood and is a renewable resource. The current trends concerning the methods of oxidation of hydrolysis lignins and the use of oxidation products are considered. Lignin oxidation processes are mainly aimed at obtaining macromonomers with a high content of functional groups and at obtaining low molecular weight oxidation products. A significant group of research is associated with the development of processes for the production of polyols used for the synthesis of polyurethane foams. In view of the insolubility of hydrolysis lignins in acidic media, the reactions of their modification to obtain highly reactive polymeric ingredients are expediently carried out in acids. Electrochemical oxidation in acidic environments allows for multiple use of electrolytes and is energy-consuming to young.

Keywords: renewable resource, industrial waste, hydrolysis lignin, oxidized lignin, hydroxyl groups, macromonomers, low molecular weight products, chemical oxidation, catalysis, electrochemical method, resource saving

This paper discusses the results of engineering and environmental surveys on the territory of an unauthorized landfill near the working village of Erzovka, Gorodishchensky district, Volgograd region. In the course of the work, a comprehensive study of the state of atmospheric air, soil and radiation background was carried out. In accordance with the order of the Ministry of Natural Resources and Environment of the Russian Federation dated August 4, 2017 No. 435 "On the approval of the criteria and term for categorizing objects, the accumulated damage to the environment on which is subject to liquidation as a matter of priority", the study area was categorized. The data on the mass, morphological composition and hazard class of wastes located in the study area are presented. The results of a laboratory study of environmental pollution by production and consumption wastes are presented, and the accumulated environmental harm is assessed.

Keywords: unauthorized landfill, accumulated environmental damage, production and consumption waste, pollutants, heavy metal pollution, level of negative impact

Environmental monitoring of recreational areas of settlements allows you to monitor the ecological state of natural objects and identify environmental risks. The purpose of this work was to assess the element composition of aquatic plants (submerged hornwort (Ceratophyllum demersum)) growing in the recreational zone of the settlement - Svetly Yar. Research objectives: selection of aquatic plants; drying plants in natural conditions; Evaluation of plant samples (dry air sample) by mass spectral and atomic emission methods with inductively coupled plasma according to NSAM method No. 512; comparison of the obtained results with clarke ((Kovalsky V.V., 1974; Market B., 1992); evaluation of the results and prediction of the ecological situation. Research methods. Evaluation of plant samples was carried out by mass spectral and atomic emission methods with inductively coupled plasma according to NSAM method No. 512. Research results. The chemical composition of aquatic plants was studied: submerged hornwort (Ceratophyllum demersum) growing in the lake of the recreational zone near the village. Light Yar. In aquatic plants (dry air sample), on average, an increased content of lithium (Li-88.6 g / t) was revealed - 600 times; tin (Sn-14.9 g / t) - 57 times; sodium (Na-20065 g / t) - 30 times, and others compared to clarke (Kovalsky V.V., 1974; Market B., 1992). Conclusion. The results obtained indicate the pollution of the water body and environmental risks for the living population when organizing recreation. An assumption is made about a natural source of pollution. It comes from the buried ancient magma of the paleovolcano in the steppe, which saturates the groundwater with chemical elements that feed the recreational lake. Further research and a comprehensive study of the territory of the village is required. Svetly Yar and its environs with the aim of confirming or refuting the hypothesis of the natural origin of the revealed chemical elements of hurricane values ​​in comparison with clarke.

Keywords: lithium, tin, rhenium, environmental monitoring, environmental risks, natural pollution, aquatic plants, submerged hornwort (Ceratophyllum demersum, ancient magma, super-paleovolcano, lithium-containing magma, recreational zone, brine lakes

The authors of the work have developed a methodology that allows, on the basis of calculating the values of sanitary-hygienic and environmental efficiency, as well as the energy-intensive indicator of the processes of collecting dust and cleaning the gas-air stream from dust, to select and design a highly efficient and energy-efficient engineering dust suppression system for a drying drum operated in brick factories

Keywords: inorganic dust, dispersed system, construction industry enterprise, labor protection, environmental safety, brick production, drying drum, selection method, dust suppression systems

The authors of the work analyzed the successive stages of the process of reducing air pollution in the working area and atmospheric air, built a physical model of the process for reducing air pollution and selected the preferred options for the efficiency of dust suppression technologies in relation to the operating conditions of the drying drum of a brick factory.

Keywords: inorganic dust, dispersed system, construction industry enterprise, labor protection, environmental safety, brick production, drying drum, physical model of the process of reducing air dust pollution

In the modern world with the rapid pace of development of human civilization, the question of negative technogenic impact on the environment in General and on the hydrosphere in particular is increasingly being raised. With the growth of population size and density, the consumption of natural resources increases, and as a result, the load on existing engineering communications increases, and regulatory requirements, including environmental requirements for newly created engineering infrastructure objects, increase. It should be noted that there is a direct relationship between the population and the volume of water consumption, which is constantly growing, which in turn leads to an increase in the amount of wastewater. Taking into account changes in environmental legislation and increasing requirements for the quality of wastewater treatment discharged to water bodies, the issue of finding new calculation methods and creating operational models of sewage treatment plants is urgent.

Keywords: waste water, biological treatment, secondary settling tank, activated sludge, calculation method

This article provides a theoretical description of the vibration turbulization process. It is shown that with constant physicochemical properties of the system, the volumetric mass transfer coefficient in the liquid phase during vibration turbulization depends on the mixing power and gas content.

Keywords: vibration impact, mass transfer, gas content

According to the World Health Organization (WHO), air pollution from solid particles, which causes numerous diseases, leads to several hundred thousand premature deaths in the European Union and up to three million in the world, is one of the most serious problems for humanity. This article presents the oldest and most commonly used dust control method in the industry for the transport of bulk materials, which is the use of wet liquid spraying systems. The key factors contributing to the fight against dust are indicated, the possibility of using surfactants is considered. The authors investigate such an urgent problem today as the further development and study of methods of dust removal in industrial construction. The main place in the article is occupied by the issue of increasing the efficiency of the process of air dedusting by low-pressure irrigation. A method for a mathematical description of this process is proposed. The work contains tables and formulas that allow tracing the process of mathematical transformations. The authors of the article present the results of their research, the final result of which is a mathematical description of the dependence of the efficiency of the dedusting process with low-pressure irrigation, taking into account the accepted assumptions and boundary conditions. At the end of the work, it is concluded that formulas have been obtained for improving the applied method of transportation using bulk materials by a belt conveyor.

Keywords: air, dust, transportation, bulk construction materials, heating, fertilization system, mathematical modeling, low-density cultivation, ecological safety, fine-grained particles

A scheme and procedure for carrying out emanation tests of radon-protective coatings on standard concrete samples are proposed. The results of testing the material "Silor-Ultra" as an effective radon protective coating are shown.

Keywords: radioactivity, radon, radiometer, concrete, standard sample, antiradon protection, radon protection coating, radon insulation, emanation tests

The article presents an assessment of the environmental costs of dust pollution in local construction. The environmental assessment of construction in the region should take into account the optimal conditions for preventing damage to all related areas of activity, both during construction and throughout the life cycle of the project. Under the damage caused to the environment by dust emissions from construction and other sources, we mean additional costs necessary to eliminate the consequences of atmospheric pollution. Losses in the cost and productivity of finished construction products are increasing very significantly due to the introduction of measures to protect the environment from dust emissions. These losses are especially noticeable in the production of earthwork, installation, and plastering works. The purpose of the study is to determine the cost of damage caused by dust pollution, develop and propose solutions to reduce this type of damage and associated environmental costs.

Keywords: environmental safety, environmental monitoring, air protection, ecology in construction, dust suppression, dust deposition, dust collection systems, labor protection in construction

The article considers the main approaches to the organization of ecological management and environmental safety at industrial enterprises in Russia, highlights the key problems and trends of environmental management in industry, factors and conditions for ensuring environmental safety in the production sector. Based on a comprehensive analysis of scientific literature and activities to ensure the implementation of ecological management of large industrial enterprises in the country, the main directions and problems of practical implementation of environmental management, as well as the design and operation of environmental safety systems in the industrial sector are identified: insufficient experience in developing and implementing an environmental strategy; fragmented use of elements and methods of environmental management; lack of methodological support for effective integration of the environmental management system into the management system of industrial enterprises; problems of corporate governance and others.

Keywords: ecological management, ecological safety, ecological management, environmental safety management system, industrial enterprise management

Currently, the world community is facing the problem of a large increase in various types of garbage. The solution to the problem can be the disposal of solid municipal waste in order to obtain heat and electricity. This issue is considered in the field of ecological construction.

Keywords: recycling, solid, municipal, waste, generation, energy

The method of calculating the coagulant dose using the technology of concentrated coagulation with the addition of air is given. The paper considers the peculiarities of using aluminum sulphate and aluminum polyoxychloride as a coagulant in different periods of the year, taking into account seasonal changes in water quality. Recommended values of parameters used in calculations of the coagulant dose during the year are given. The refined method of calculating the coagulant dose allows determining the weight dose of the reagent, including the mixed coagulant, taking into account the required air saturation of water, as well as the optimal volume of the so-called auxiliary water flow sent for concentrated coagulation.

Keywords: coagulant dose, aluminum sulphate, aluminum polyoxychloride, air saturation, concentrated coagulation, auxiliary flow, mixed coagulant

In the modern world, the question of using alternative energy sources is very acute, since mineral reserves can run out and the environmental damage from their use and processing is much greater than from renewable energy sources. Therefore, in the modern world, the use of renewable energy is gaining momentum.

Keywords: renewable energy sources, ecoenergy

The article deals with obtaining RDF fuel based on solid municipal waste. The expediency of using this type of fuel in the cement industry is justified, since its combustion in cement furnaces has less impact on the environment due to the high temperature level of the process. The composition of RDF fuel by elements is analyzed. Due to the fact that this fuel from different sources has a difference in the heat of combustion of two times or more, the heat of combustion of RDF fuel for the middle zone of Russia was experimentally determined and its compliance with GOST R 55127-2012.

Keywords: solid municipal waste, MSW, Recycle Derived Fuel, RDF fuel, lower combustion heat, ash content, alternative energy source, colorimetric bomb

The article presents an analysis of the impact of fine dust particles on the health of builders, released during the production of construction processes and suggests measures to reduce it. A serious threat to the health of workers on the construction site and people living in the vicinity of it is represented by fine dust particles in a suspended state, both in themselves and in the total concentration of harmful air pollution near construction production. Analysis of the monitoring of suspended matter concentrations has shown that the ratio between the time of exposure to suspended dust particles in different concentrations directly affects the health of people. Air pollution in the work area negatively affects performance, causes diseases in workers, and can cause injuries due to reduced visibility. The organization of conditions corresponding to labor protection and safety, healthy environmental conditions on the construction site will ensure an increase in labor productivity by up to 12% and improve the quality of processes performed.

Keywords: environmental safety, environmental monitoring, air protection, ecology in construction, dust suppression, dust deposition, dust collection systems, labor protection in construction

This article discusses the features of technical operation of cultural heritage objects. The relevance of the topic is that cultural heritage objects, like any real estate objects, need constant measures to maintain the working condition, as well as to preserve consumer properties, and this action requires special attention and rational approaches. Guided by the guidelines for the operation of cultural heritage objects of the peoples of the Russian Federation, the owner or other legal owner of the cultural object must comply with the requirements of regulatory documents for the preservation of the object in order to increase its service life. Thanks to a comprehensive approach to improving the method of restoration of objects of historical and architectural significance, it is possible to increase the interest of tourists to cultural objects and ensure their safety.

Keywords: Object of cultural heritage, operation, operating costs, quality, timeliness, impact, safety, defect, repair, rationality, activities, working condition

The article considers examples of cities with a linear-elongated configuration. Issues of air pollution are considered, examples of components of pollutants coming from stationary and mobile sources are given. Statistical data on human diseases in the Volgograd region for the period 2008-2017 are presented. Considers the issues of monitoring for the city of Volgograd.

Keywords: linear city, highway, pollution, carbon monoxide, monitoring, monitoring posts, disease statistics, combined action, vehicles, noise, gas pollution, health, exhaust gases, length

This article discusses the possibility of using water wells for water supply of rice irrigation systems. The aim of the study of this work is to study the prospects for the possible use of water wells for irrigation of flood fields of the Krasnodar Territory. This issue has been studied by the example of a water well, which is located in the village of the Black Sea Seversky district of the Krasnodar Territory. The relevance of the study of this issue is expressed in the fact that of all types of agricultural nature management in the Krasnodar Territory, one of the most important types is rice growing. Naturally, in the field of rice production, irrigation sources play an important role, which, in our opinion, include water wells. The relevance of this study is associated with the importance of the production of rice groats, as one of the most important types of agricultural nature management in the Krasnodar Territory and the Republic of Adygea. Irrigation sources are of great importance in the field of rice growing, which consists in the fact that for the irrigation of flood fields, a large amount of water is required, providing a favorable environment for rice growth. At the same time, the quality of rice cultivated directly depends on the qualitative characteristics of the water resources used for rice systems. The value of irrigation sources is that a favorable environment for the cultivation of rice groats is created by water resources, which are used in large quantities for irrigation of rice fields. Water resources used for irrigation of flood fields have a direct impact on the quality of rice cereal, which is grown on irrigated fields. In this regard, there is a need to conduct a study of water resources extracted from water wells for their compliance with sanitary norms and rules, the results of which will be considered in this paper.

Keywords: siltation, reservoir, water resources, floodplain territories, rational water use, water resources

The paper reveals the problem and causes of the formation of fetid compounds in the systems of transportation and wastewater treatment. Various methods used at the moment to eliminate and neutralize unpleasant odors, as well as a number of measures to clean the air from fetid compounds are considered. A new method is described to prevent the formation of odors of fetid compounds in wastewater transportation and treatment systems and a device for its implementation using low-intensity cavitation. The scheme of the device for sewage treatment from smells of fetid compounds. The principle of operation of this installation is described.

Keywords: fetid compounds , air purification, biological purification, low-intensity cavitation

The results of the development of a polymer fire-resistant heat-insulating coating containing waste from electrochemical production for thermal insulation of hot metal surfaces of industrial equipment and building structures, working surfaces of pipelines are presented. The coating is developed on the basis of acrylic binder, hollow carbon microspheres, antifoam, pigment and flame retardant based on waste electrochemical production - galvanic sludge. The use of hollow carbon microspheres as a filler in the amount of 14.0 to 38.0 wt. including reduces the thermal conductivity of the coating, and the use as a flame retardant additive, pre-dried and finely ground galvanic sludge in an amount of 5 to 15 wt. h., gives the cured heat-insulating coating fire-resistant properties. Studies have shown that the use of this composition allows you to get a polymer heat-insulating coating with good physico-mechanical and flame retardant properties, while another problem is solved - the safe disposal of galvanic sludge.

Keywords: polymer heat-insulating coating, waste from electrochemical production, flame retardant, hollow carbon microspheres, galvanic sludge, fire resistance, safe disposal

The problem of managing municipal solid waste (hereinafter referred to as MSW) is annually complicated, due to the increase in the mass / volume of generated waste, the transformation of its composition and properties, the lack of economic resources in many countries for processing the bulk of the waste, and other reasons. The largest amount of MSW is generated and accumulated in residential and public buildings of various amenities and purposes, in enterprises, on the streets, in courtyards. Untimely disposal and disposal can lead to significant environmental pollution (hereinafter referred to as OS). One of the main stages of MSW management is waste collection. Therefore, the article presents a solution to the urgent problem of improving the environmental safety of urban areas with the aim of further using waste for energy supply based on the choice of an environmentally friendly and energy-efficient engineering system for collecting MSW.

Keywords: municipal solid waste, municipal services, waste management system, municipal solid waste collection, environmentally friendly waste collection, energy-efficient waste collection, environmentally friendly and energy-efficient engineering waste collection