It is carried out series of experiments on application of high-voltage pulsed discharge (HVPD) in the processes of potable water and sewage purification. The results of these studies have shown that HVPD-rocessing of lime milk enables to transfer almost the entire mass of CaO in lime milk to the active state. For disinfection of large volumes of treated sewage water before discharging it into surface waters, HVPD-processing is the most feasible and economically beneficial. Disinfection of water by filtration through the polypropylene fiber modified by copper sulfide or silver chloride can be recommended for small potable water supply systems.

It is developed the structural scheme of acid-alkali wastewater purification of galvanic industry from heavy-metals ions for one of the enterprises of Perm City up to the requirements of GOST 9.314-90 to service water of the second category. Technological scheme is based on the use of pneumatic flotation using anionic surfactants of аПАВ – АБСК, ЭМАЛ270Д group.

The crystalline hydrates, such as cement, gypsum and metal phosphates, are proposed as binders in manufacturing shell sand molds by one-off ice models with using the liquid remaining from models melting for hydration and hardening of these binders. Studies have shown that the most suitable ones for this purpose are quick-hardening cements, which enable to form for up to 5 — 7 minute a hard crust around the models in the form of a container of dry sand mixture. Examples of such shell molds are presented.

It is presented a comparative analysis of measures on reducing urban air pollution by industrial enterprises using both engineering methods and the techniques of optimizing location of the sources of emissions with respect to residential areas. The role of location of enterprises increases for those parts of anthropogenic impacts that can not be reduced technologically, even when the best world standards are reached. On the base of analysis of the largest Urals' cities, it was revealed the degree of danger from each enterprise due to the existing territorial-planning structure. There were calculated also damage and the potential of reducing the impact by both technological and planning methods.

There are experimentally investigated sorption properties of microcrystalline calcium hydroxyl. Comparative analysis of some characteristics of calcium hydroxyl and powdered sorbents of activated carbon for gas cleaning problems is carried out

It is shown the possibility of using superfine amorphous silicon dioxide SiO2onH2O of natural and technogenic origin for the synthesis of wollastonite. Natural silica is presented by diatomite selected at the Puzanov Cape (Kunashir Island, Kuril Islands). Amorphous silica of technogenic origin is obtained when complex processing of fluorineontaining waste at the Yaroslavsky Mining and Processing Plant. Wollastonite produced of these types of raw material can be used in various industries i.e. paint industry, production of building materials, pigments and sorbents for purification of aqueous media.

It is considered the possibility of using technogenic waste from thermal power industry and non-ferrous metallurgy, such as fly ash from the
Thermal-Power Plant-7 (City of Bratsk) and micro-silica (waste of crystalline silicon production from the Bratsk Ferroalloys Plant), for elimination of oil spills on the ground. Annual formation of fly ash at the Thermal-Power Plant-7 due to burning coal from the Irsha-Borodino coal mine varies from 21 to 24 thousand ton. More than 800 ton of ash waste is now accumulated in the dumps. The annual output of microsilica reaches 32 thousand ton. It is also considered subsequent recycling of the spent sorbent

There are given recommendations for accelerated automated extraction of hydrocarbon by solvents in subcritical conditions, enabling to quantify the volatile, semi-volatile and nonvolatile heavy fractions of hydrocarbons, mono-aromatic and poly-aromatic hydrocarbons in wet and dry soils and grounds of various granulometric compositions.

It is studied the effect of brewing waste on the performance of biological activity of oil-polluted soil in the field experiment. It is shown that brewer's grain and the spent ceyssatite stimulate the activity of soil catalase and invertase enzymes of black earth contaminated by oil and reduce its phytotoxicity. The results of these studies indicate that brewing waste can be used for stimulation of biological activity and reclamation of oil-polluted black-earth soil.

There are presented the results of investigation of possibility of integrated using blast-furnace granulated slag (metallurgical industry waste) and grinded concrete scrap (construction waste) to get clinkerless composite slag-alkaline binders competitive with conventional Portland cement in price and quality. Efficiency of addition of concrete scrap component i.e. grinded cement-sand mortar into the content of composite slag-alkaline binder is found.

It is investigated the reduction smelting of blast-furnace slag from lead production with fluxes in the form of metallurgical arsenic wastes (calcium arsenate and arsenite) with addition of slag after fuming. It is found that iron-arsenic speiss is the most convenient, safe and cheap form of arsenic metallurgical waste storage. It can serve as a source of raw materials for production of pure arsenic.

On the example of upgrading ventilation systems of trucks’ covered parkings, it is offered a cost-saving method for collection and recycling of exhaust gases from internal combustion engines. It is developed a method for quantitative assessment of the composition of internal combustion engines’ exhaust gases using the original mobile information-measuring system. The new assessment level of toxicity of internal combustion engines’ exhaust gases is proposed.

It is carried out comparison of novel and well-known anti-icing materials. Their influence on the content of photosynthetic pigments, their ability to cause excessive corrosion of metallic and concrete structures and the depth of penetration of active components of anti-ice mixtures into ice layer are investigated.

There are presented the results of studies of corrosion processes on the screw solvent devices in hot-leaching method of producing potassium chloride. It is found that during industrial operation of solvent devices, there are generated electrical circuits that lead to the appearance of current leakage from the equipment of solvents onto the ground and intensive corrosion of the components of solvent devices. The method for protecting equipment of screw solvent devices from corrosion is developed.

There are determined the indicators of urban soils geochemical conditions, which enable to identify priority pollutants in different parts of the city. The sites of urban area unfavorable for living organisms and humans are found.