Package technology of treatment of seepage waters at municipal solid waste landfills containing organic impurities, resistant to oxidation, and other poisons is suggested.  Developed flowsheet combines progressive membrane technology with effective developments in traditional methods of waste water treatment.  Taking into account the complex multicomponent composition of seepage waters at municipal solid waste landfills, it is suggested to apply modularity when constructing the flowsheet, which enables to develop a technology of seepage water treatment for each specific municipal solid waste landfill with seepage waters of unique qualitative composition.  Realization of this technology will allow to get water treated with its parameters complying with the TLV norms for waters for fishing.

On the basis of the energy dissipation value, the relations are determined to calculate the volumetric coefficient of mass transfer in the bubble unit and define mass transfer parameters in the industrial aerotank. The results of mass transfer studies on aerators of different designs and recommendations on their use are given.

Copper and nickel waste slag are claimed to pollute the environment with heavy metals. With a view to recycling of waste slag, research has been carried out to recover non-ferrous metals from them and get silica to be used in production of binding materials. It is shown that preconcentrates of non-ferrous metals can be obtained at the floatation concentration and hydrochemical treatment stages. Silica-containing products resulting from separation of non-ferrous metals can be efficiently used in slag portland cement, fine concrete and magnesia binding material. The use of hydrochloric or sulfuric acid leaching and silica powders with high-surface area (270-753 m²/g) from copper and nickel slag resulted in water-resistant high-strength magnesia binding material not prone to cracking.

The work presents data on a study of extraction o.f heavy metal ions (Zn²⁺, Cd²⁺, Pb²⁺, Cu²⁺) from wastewaters with a combined sorption material (SM) based on a mixture of waste of ceramic industry and agriculture (threshing millet, husks of sunflower or wheat). Moreover, tertiary treatment of wastewater was conducted by phytososbents – common duckweed Lemna minor and eichornia Eychornia. It is established that effectiveness of the treatment of wastewaters with the combined SM from the heavy metals cations is 94-99 %. Acceleration of the phytoremediation achieves by the way of use of electromagnetic energy (constant magnetic field, ultraviolet and laser radiation).

The possibility of use of ash and slag waste of Zabaykalsky territory thermal power plants in road construction is considered. Results of researches of physical and technical characteristics and chemical composition of ash and slag waste according to the state standards on test methods and technical requirements have been presented. The properties of road cement soils on the basis of local raw materials have been studied. The introduction of ash and slag materials in the composition of cement soil allows obtaining a composite, corresponding to the stamp of strength M 75. It is shown that the ash-slag waste of the Zabaikalsky TPP can be used in obtaining effective materials for road construction, which will not only reduce the consumption of expensive cement, but also solve complex acute environmental problems.

Emission of the basic greenhouse gases (CO₂, CH₄, N₂O) from water transport carrying out the international transportation from the territory of the Russian Federation has been estimated. In 2013, total release of СО₂, CH₄, N₂O amounted to 34.7 million ton of СО₂- equivalent that is 5.7 times more than in 1990. Carbon dioxide was 99 % of the measured value; methane and nitrogen dioxide were 0.2 % and 0.8 % respectively. Thus far, a portion of releases related to the international transportation by water is rather insignificant - only 1.5 % of the cumulative emission of greenhouse gases of the Russian Federation. However, considering the trends of fuel consumption growth, we can expect its rise in the near future. Application of technical and operating measures for enhancement of power efficiency will allow us to reduce emission of greenhouse gases from the water transport.

The problem of waste generation in the process of production of lightweight cellular concrete building blocks is investigated.  The importance of reduction of the negative impact of waste products on the environment components, as well as search for efficient ways of their beneficial use is stressed.  The possibility of usage of production wastes in the form of crushed concrete as adsorbing material for different liquids contaminating the territory is considered.  Results of laboratory investigations concerning waste material absorptivity in relation to gasoline, motor oil and shampoo are given.  Analysis of research results allowed to reveal the dependencies of waste material absorptivity on the density of the liquids under study.  Parameters of absorption effect and the time required to reach adsorption equilibrium were determined.  It was demonstrated that usage of production wastes as adsorbent will allow to efficiently neutralize negative impact on the environment in event of incidents involving spill of the liquids contaminating the territory.

Technological process of compost production at Municipal Waste Recycling Plant, JSC (Togliatti) is examined.  MWRP, JSC is operating according to aerobic biothermal composting technology, when municipal solid waste enters the natural biological cycle of matter and as a result undergoes the process of detoxification and turns into compost - valuable organic fertilizer.  MWRP, JSC ensures full mechanization of technological processes, excluding any direct contact with toxic municipal solid waste.  Compost produced at MWRP, JSC can be used as biofuel for greenhouses, as organic fertilizer in the spheres of agriculture, forestry, parks and gardens management and as a component of vegetative cover during landfill recultivation.  The process of rapid biochamber composting of municipal solid waste does not pose any threat as far as the technology of environmental safety provision is concerned. In the process of municipal solid waste recycling non-compostable municipal waste is brought for disposal to the landfill and petroleum products derived from the waste are sent to be regenerated.  Gaseous products of decomposition of organic matter found in municipal solid waste are taken out through vent headers into the gas outlet pipe and dissipate in the atmosphere.

Geoecological problems arising during oil shale extraction and primary processing are investigated.  Conditions of formation of refuse piles of combustion metamorphic rocks are covered.  Evaluation of area and size of man-made formations of dumps and disposals of combustion metamorphic rocks formed during oil shale extraction at Syzran Oil Shale Processing Plant is conducted.  Properties of combustion metamorphic rocks are studied and directions of their usage for production of building materials are determined.  Principles of the local raw materials base formation on the basis of construction waste with inspection of dumps and disposals of producing and non-producing fields are applied.  The prospects of formation of the raw materials base of the building industry with the use of technogenic raw materials from the dumps of Kashpir mine are determined.  In order to decrease the areas taken by combustion metamorphic rocks and reduce ecological tension in the region, it is recommended to activate the usage of combustion metamorphic rocks in production of building materials. 

The article is devoted to the problem of oil company strategy modeling in the sphere of emergency oil spill risk management. In the article the reasons of oil spills are considered and it is shown what a huge damage they can cause. The author pays great attention to the importance of risk management in oil spill prevention and liquidation. The role and place of risk management strategy in the general company development strategy is defined. The classification of risk management decisions is presented. The main hypotheses used in the process of optimization model development are shown. The characteristics of the model, including formulas, variables and model features are under consideration in the article. The modern toolkit (methods, decision programming language) to run a computer simulation using eventual oil spill risk scenarios on the basis of the model is recommended in the article.

The main criteria of relevancy are stated and showed on the basis of effective regulatory documents. Initial data that are obtained from city control stations of air pollution monitoring shall comply with these criteria.  Comparison of the controlled parameters in the territory and pollution indices are given by the example of Krasnoyarsk City and some areas of the USA.  Examples of the obtained data inconsistency with parameters of emission are given which are caused by insufficient consideration of air exchange peculiarities and transfer of pollutants within the district areas. Ways and methods are proposed in order to solve the revealed problems when organizing monitoring over the state and pollution of atmospheric air in cities.

Proposed to define the term “regulation of environmental safety” like the similar term in nuclear energy, as it is a part of technosphere. The analysis of environmental laws allowed to clearly distinguish between the technosphere safety of the environment and the technosphere safety of the object and, respectively, define the functions of state authorities regulating these safety activities. The activities on scientific support of regulation of technosphere safety of the environment were reviewed and approaches to statutory regulation of the technosphere safety of the environment were proposed for discussion.

The sorption and complexing properties of styrene/maleic anhydride copolymer-based modified sorbent in relation to molybdenum(VI) have been studied and main quantitative characteristics of metal ion sorption have been defined. A sorbent containing p-phenylenediamine fragments has been proposed for selective extraction of molybdenum(VI) from solutions. Optimal sorption conditions are defined. The influence of various mineral acids (HClО4, H2SО4, HNО3, HCl) on molybdenum(VI) desorption from the sorbent has been studied. The experiment has revealed that maximum molybdenum(VI) desorption occurs in sulfuric acid. The molybdenum(VI) extraction rate in optimal conditions exceeds 95 %. Methods of sorption-photometric determination of molybdenum(VI) in sea water have been developed.