Recooling systems, and in particular, their kind, water recycling systems, are one of the most important elements of the technological complex of many industries. The performance of the process equipment, quality and production costs, the specific consumption of raw materials and energy depends on the quality and effectiveness of water recycling systems. Availability of a wide range of water cooling plants causes the need to develop criteria to assess their effectiveness in order to make informed choice of their type. It was proposed a jet-bubble device for improving the efficiency of industrial cooling tower, which is able to provide a minimum moisture carryover by gas flow, a large surface contact between the phases and minimal hydraulic resistnace. There were presented results of studies heat and mass transfer efficiency using contact members.

Glycerol is a byproduct of the rapidly developing in the world of production from renewable natural raw materials (fats and oils) biodiesel, liquid motor fuel. Promising direction of its recovery is the production of epychlorgydrin (EHC), a valuable intermediate of organic synthesis. In production of 1 t of EHC from glycerol formed to 6.3 tons salt aqueous solutions containing 0.8 – 0.9 of sodium chloride. It has been proposed and carried out energotechnolgical calculations of block schematical diagrams of isolation from the reaction mixture dried by isotropic distillation EHC and sodium chloride recovery by evaporation crystallization. It was shown that in Russia the industrial production of epychlorgydrin from glycerol fits perfectly into the structure of modern production of chlorine by electro membrane process followed vinyl chloride obtain by chlorine balanced method. Two-stage evaporation crystallization scheme allows you to return into production cycle of 89 – 91% by-produced sodium.

The paper presents the results of studies of the effect of ultraviolet activation (UV-activated) of natural clay deposits Catoca and Catete (Angola). There were given data of X-ray diffraction data of original and washed clays, in which revealed the presence in them of clay materials, such as kaolinite, montmorrilonite, saponte, illite. There were described some features of kaolinite, montmorrilonite, illite. It was noticed that clay materials are capable of cation exchange by isomorphic substitution in tetrahedral of crystalline lattices of minerals. During experiments was showed that UV-irradiation of clay leads to their activation. This is confirmed by difference in cation composition of water extracts in which the cation content of Na⁺, K⁺, Ca²⁺, Mg²⁺ was higher in the case, if the clay was subjected to activation. Wherein content of ions of Ni²⁺ and Cu²⁺ was lower in the UV-treated clays. The maximum effect of leaking in aqueous medium of clay deposits for Catoca by ions Ca²⁺ (51,1 %), and for clay deposits Catete by ions Na²⁺ (15,1 %).  For solutions containing cation Na²⁺, the maximum effect was observed on the washout for cation Al³⁺ (25,0 %) for clay deposits Catoca, and for cation Na²⁺ (55,6) – for clay deposits Catete. For solutions containing cation Ca²⁺, the maximum effect of washout on clays deposits Catoca fixed for cation K⁺ (80,9 %), for clays of deposits Catete either for cation K⁺ (31.6%). Difference in the percentage yield of cation in the solutions, apparently, can be explained by the difference in the composition of clays.

The use of many of insulation materials for construction of road pavement may be limited in areas with severe climatic conditions. One promising solution to this problem is the use of foam glass. Foam glass is safe and durable material with high thermal insulation properties and has many advantages over other types of materials. Processes of low temperature foaming of chemical and mechanical modified zeolite raw materials Holinskoe deposit were researched. The conditions for manufacturing of heat-insulating materials with density 250 kg/m³ were define. That confirms the possibility of using zeolite raw materials in road pavement as thermal insulation material. In the production of new foam glass can be used raw materials with content of zeolites less than 50 %. That solves the problem of non-waste production of deposits with a corresponding increase their efficiency and reduce the technogenic load on the environment.

It was showed that investigated paint coatings have varying degrees of resistance to the action of microfungus, and fungal resistance may differ substantially from the fungal resistance of the individual components of these systems. It was showed that climatic factors may affect the original fungal resistance of paint coatings systems. There were given recommendations for testing scheme fungal resistance of paint coating systems for a more objective assessment of their resistance to the action of microfungus, which allows carrying out more targeted protection agains biological damage caused by micromycetes under different operation conditions.

There were given the results of remote sensing disturbed lands of Irkutsk Oblast’s fuel-power complex. It was established structure of disturbed lands in the open-pit mining, as well as the lands of thermal power plants involved in coal-fired generation of heat and electricity. For coal mines proposed the use of land reclamation technology when combined stripping works with mining engineering reclamation stage, and for thermal power given recommendations for the use of manual techniques of ash storage while reducing costs for the construction of embanks and the reduction of polluting emissions and harmful substances during construction.

It was investigated the composition of zinc-containing slag from reverberatory zinc smelting furnace and sludge from production of fluororubber monomers. It was investigated slags and sludge’s  leaching process by hydrochloric acid of different concentrations, thus found that complete extraction from the waste is achieved using super stoichiometric amounts of acid for 30 – 60 minutes It was investigated the deposition process of basic zinc carbonate from chloride solutions by sodium carbonate and hydrocarbonate in the temperature range 20 – 80^oC, determined composition of precipitation product, sedimentation rate and volume of final sediment sludge, filtering coefficients characterizing the physical and mechanical properties and resistance of filtering diaphragm, as well as filtering rate depending on the pressure drop and deposition temperature. It was set optimal parameters for the main stages of process.

There were presented results of study assessing the stability of the waste placed in the landfill-sites of municipal solid waste of the Perm Kray using thermal methods of analysis in air and argon. It was established that use of simultaneous thermal analysis method for samples of solid municipal waste, taken from landfills and dumps of solid municipal waste that are at different stages of the life cycle, allowing comprehensive determine the stability of place of landfilling. It was conducted testing methodology for assessing the degree of waste stability, based on the determination of the ratio of the specific enthalpy of dry matter waste (DM) and organic dry substance (ODS). It was justified by the possibility of using techniques to determine the degree of biochemical stability of waste at different stages of the landfill’s life cycle. It was established that at operated landfill-sites and dumps of solid waste DM and ODS were 0.45 or more, at reclaimed landfill-sites – 0.1 – 0.25, and at closed landfill-sites – less than 0.1. Developed a way to assess the stability of MSW samples allows to predict the potential emission of landfilled waste, which in turn can serve as a basis for the development of measures to reduce the negative impact of landfills on the environment, Technical and technological solutions for the remediation and safe decommissioning of solid waste dumping sites.

In Russian blended gasoline content of gasoline catalytic cracking (GCC) is greater than 30 %, with most the sulfur of from the permitted standard Euro 5 ten ppm in commercial gasoline was with GCC. The high sulfur content of the GCC makes it impossible to use them without prior hydrotreating, inevitably reducing the octane rating of gasoline. There was considered the nature of sulfur compounds making the major contribution in the octane rating. There was providing overview modern technological processes and catalysts for hydrotreating of GCC. There was shown that modern gasoline desulfurization based on pre-fractionation and separate purification of heavy and light fractions, which makes them technologically complex and energy intensive. Boreskov Institute of Catalysis together with JSC “Gazpromneft-MOR” developed of catalyst and a single stage hydrotreating process of GCC. Developed catalyst allows the selective hydrotreating all GCC fractions without pre-fractionation obtain gasoline with a sulfur content of no more than 10 ppm, and drop the octane rating of not more than one point.

The region of the Nether-Polar Urals is characterized by higher ecological sensitivity to mining with generation of solid, liquid and gaseous wastes. Mining-prospective territories are characterized by high ecological vulnerability due to the spread of cisco spawning grounds and presence of endemic and valuable fish species. Leaching of solid waste with liquid waste for preparation of process solutions increases environmental safety complex use of this technogenic raw material. Use of state-of-the-art furnaces for melting sulfide raw materials in the liquid bath helps protect the atmosphere from gaseous toxic emissions. Possible consequences of using traditional mineral mining methods for the environment of the Nether-Polar Urals are considered. As an alternative, advanced dry concentration methods for separation of valuable components of ores are suggested to increase environmental safety of mining activities.

More than 60% of population of the Sverdlovsk Oblast live in 13 municipalities classified as environmentally disadvantaged as air state. Analysis of organization of air quality monitoring system in the region reveals a distinct lack of the number of fixed stations monitoring air pollution in the municipalities with adverse environmental conditions. There were identified ways to further enhance both the state and the regional network of air monitoring. It was established that despite the implementation of measures on air quality in the region, the number of towns with very high levels of air pollution for the period 2011 – 2013, increased. There was carried out analysis of the levels of the air pollution in urban districts Verkhnyaya Pyshma, Polevskoy and Rezh, on the territory of which, in accordance with the convention on the environmental safety of the Sverdlovsk Oblast in 2015 should be indicators of the quality of the quality of the environment achieved, allowing to exclude them from the list of municipalities with the environmentally unfavorable situation.