There were discussed issues related to improving the efficiency of cleaning the air of the working area during the implementation of engineering processes of machining products. It was established that the air cleaning efficiency can be improved by changing the air flow rate in each local cleaning device, depending on actual contamination of air in the working area. It was demonstrated that the change of air flow intensity, and hence the performance of the local cleaning device can provide by changing the sectional plane of the pipe of this cleaning apparatus by means of flap moving in manual or automatic modes. There was proposed an algorithm for increasing the efficiency of air purification system and an experimental study of the reliability of this algorithm. There was outlined an experimental set up created for carry out research, and provided a methodology of these studies. Research results shown that the effectiveness of the working area purification system and impurities sand slurries of cutting lubricants thermal destruction products can be improved by redistributing of air flows in pipelines of local purification systems through their intensity changes depending on the actual air pollution in working area.

There was considered a scheme of formation, recovery and involvement in the production of oil sludge. There were outlined the most widely used combination of methods of disposal and recycling of oil sludge and negative consequences of the use of watered fuels for heat and power equipment. For efficient dewatering of water-containing waste oil there was offered a method of dewatering on the basis of low-grade waste heat boiler heat transfer. The final dehydrated product may be used as additives for boiler fuel without substantially reducing of thermo technical characteristics of the combustion process.

There were investigated processes of catalytic oxidation of ammonia, acrylonitrile and hydrocyanic acid at several catalysts. There was demonstrated a possibility of using the gas-phase catalytic oxidation for decontamination of flue gases from nitrogen-containing impurities. There were identified preferred catalysts for decontamination of industrial flue gases from acrylonitrile and hydrocyanic acid (chromium oxide catalysts) and from ammonia (vanadium containing catalysts). There were identified the parameters of the kinetic equation for oxidation of this nitrogen compounds.

The territories located near large industrial enterprises on aluminum and silicon production, experience powerful technogenic pollution. In the Irkutsk region quantity saved up fluorine - carbon – and siliceous waste reaches 13 million tons that renders serious ecological threat of the Baikal region. At the same time dust of cyclones and slime of silicon production contain substances which can find application in the industry. The method of electronic microscopy established availability of carbon nanotubes in a foamy product, received as a result of flotation of a cyclone dust from silicon production. From a comparison of methods known in the literature for producing carbon nanostructures found that carbon in the process of obtaining a crystalline silicon ore-smelting in the electric arc furnace is in the environment in which two mechanisms of formation of CNTs: catalytic decomposition of gaseous hydrocarbons and modified arc method. By electron microscopy revealed the presence of CNTs in the foam product obtained as a result of the flotation cyclone dust of silicon production. It is possible to receive carbon nanotubes from waste of silicon production.

There were described basic principles of wastewater treatment using coagulation. There were listed impurities extracted from wastewater by coagulants. There were specified features of colloidal dispersions and wastewater, give the examples of density and dispersion and particle fineness of some wastewater contaminants. There were pointed out approximate values of electrokinetic potential of dispersed pollutions of wastewater, given the characteristics of the coagulation process. As industrial waste, perspective for iron coagulant, the authors proposed a large capacity waste of Oskol electric and steel works (Belgorod Oblast), i.e. dust of electric arc furnaces (EAF). There was investigated composition, surface electrical properties EAF, and described process of coagulant getting based on the dust of EAF. There was recorded the high efficiency of turbidity reduction of milk emulsion with an iron-based coagulant from dust of EAF. There was demonstrated that degree of model emulsions’ purification is depend on coagulant dose and settling duration, mentioned intensive flocculation at adding to emulsion the optimal coagulant dose.

There was considered a possibility of using of some biota links for water body’s treatment from pollution substances, entering the water from outside. It is known that in the Middle Urals all water bodies are the receivers of wastewaters formed as a result of metallurgical enterprises activities. It was summed up the positive experience of the used of the certain kinds in one of the water bodies of the Middle Urals, which is under the influence of man-made intensive anthropogenic impact from industrial enterprise of mining and smelting complex. This method is especially effective when you receive contamination from the diffuse runoff, and when the interception and treatment in sewage treatment plants or is economically or technically impossible. Essentially, it is formed an effective system that uses its resources to restore the balance, selfhealing and self-regulating. The use of such systems can get a positive result (ecologically improved water body) at a relatively low cost with high efficiency.

There were presented the results of field studies and remote monitoring of coffin and waste disposal dump formed during coal open-pit mining at the coal strip mine “Izyhsky” in the Republic of Khakassia. During field research sampled soil for agro environmental analysis, and was identified phyto-framing of plant community on the surface of dump. On the basis of remote sensing results were identified trends in the development of plant ecosystems in the study sites.

Classical and modern concepts of system analysis are under consideration in the article. Main complex systems attributes are analyzed with a special attention on the attributes possessed by the most complex of all systems – biological systems. The reasons of why the technical science representatives and some other scientists have mechanical view on the system analysis are grounded. The essence of system response as a main system attribute is considered. The role of system conjugation is analyzed. The article shows the role of energy in the system activity. The necessity of system analysis for environmental safety assessment is explained in the article. The author presents the definition of terms such as system and system analysis.

There was considered the interaction between society and nature in terms of urbanization processes on the example of the formation of a modern zoological garden as a special type space within which this interaction becomes possible. There were analyzed the main trends in the development of human civilization as a result of which there is a growing gap between artificial human habitat which is a modern city, and the natural environment, lack of communication with which more and more recognized by the society. There is considered the history of the zoological garden development sat different stages of civilization formation, expanding the range of functions performed by this institute in its various forms. It stands out in providing interaction between nature and the society as one of the key functions. This feature becomes increasingly important throughout of the 20th century, and the zoo has become one of the tools of nature conservation. It was concluded that the artificial environment of the modern city is experiencing a need for such a college, which is an integral part of the public space.

Improvement of the ecological situation in the Russian regions leads to the creation of new economic instruments of regulation in this sphere, such as environmental taxes. However, the introduction of new forms attracts attention to necessity of tools that reflect the current situation and efforts of the municipal system. The importance of the concept of sustainable development and the need to consider environmental factors at the municipal level are substantiated, the methods of weighing indicators to construct indexes are summarized. The article proposes the approach to the formation of ecological effectiveness performance index for municipal system of Nizhny Novgorod region, based on the analysis of existing approaches to the construction of composite indicators, and requirements on the feasibility and applicability in practice (taking into account the existing limitations of information gathering).The advantages and limitations of this approach are shown; recommendations on modification of the index (with consideration of features of particular region municipalities) are given.