In work the complex technology of purification the leakage waters from solid household waste polygon which allows to clear drains to maximum concentration limit requirements for waters of fishery appointment is offered.

The study looks at changes in dissolved part of contaminants (Ammonia Nitrogen) and COD by concentration and mass. An option for separate consideration of household flow and mixture of household and rain flow is proposed. Dependencies between wastewater flow, concentration and mass of contaminants are shown in relation to the flow of wastewater to wastewater treatment plants. Practical importance: Showing daily volumes of mixture of rain and household wastewater as a mathematical formula allows to compile calculated rates for the operation of St Petersburg municipal wastewater treatment plants. On the basis of weather expected from weather station forecasts, a forecast of the mass of wastewater can be compiled, and measures to treat wastewater can be planned.

Molecular weight of the structure of dissolved organic matter in natural water from water supply facilities of SUE "Petropavlovsky Vodokanal" was researched. Study was done by gel permeation chromatography. In tabular form indicated characteristics of the samples were studied. Integral curves of molecular weight distribution of investigated samples of dissolved organic substances were given. We considered the experimental data on using membrane filters for water purification in water treatment plant of SUE "Petropavlovsky Vodokanal". The issues of practical application of membrane filters, their advantages and disadvantages were examined. The report was done on the results of experiments applying ceramic microfiltration filters with a pore diameter 0,2 and 0,07 mkm for natural waters in SUE "Petropavlovsky Vodokanal" as well as to reduce the humus concentration and turbidity of natural waters using ultrafiltration filter. High efficiency of membrane devices for purification of natural water intake structures SUE "Petropavlovsky Vodokanal" with selectivity for microfiltration filters for humus concentration – up to 84%, for turbidity – up to 100%, for the ultrafiltration filter – for humus concentration – up to 80% for turbidity – up to 100% was experimentally established. The introduction of considered technological scheme of a new generation of water treatment Kamchatka Territory will significantly increase the efficiency of purification of natural water.

Study of the ozone dissolving in water height of the liquid column of the pro-cessing parameters are necessary for the development of new water supply facilities disinfection technology using ozone. Presented in the literature information on the solubility of ozone in water is allows only to calculate the equilibrium concentration without considering other factors. The investigations have been carried out on two experimental apparatuses. The following parameters as time processing, flow of the gas mixture, the concentration of ozone in the gas mixture, the height of the liquid layer have been studied. Research results for each apparatus are presented in the graphical form of depend-ences of the concentrations of residual ozone in water from the selected processing pa-rameters. The influence of each variable parameter on residual ozone concentration in the water has been described, and the factors that affect the increase of the concentra-tion of ozone dissolved in water at the height of the first 3 m have also been shown. Such mathematical models describing the dependence of the concentration of ozone in the water from the set parameters as the height of the insertion point of the gas mixture, the concentration of ozone in the gas mixture, processing time, flow of the gas mixture are presented. The significance of the regression equations has been checked out.

The article made an analysis of the current state of heat supply systems of the agricultural sites showed that the applied heat power equipment outdated, in need of repair or replacement. It turned out that for the purpose of supplying heat agricultural production facilities are inefficient, imperfect systems and tools heating (Central boiler), which in turn excessively capital-intensive and unable to provide the required standardized animal welfare, have great heat loss at considerable over-expenditure of fuel (fuel oil, heating oil). All these factors lead to a significant reduction of technical and economic indicators Analyzes the state of domestic engineering in the field of production of thermal equipment, which, as it turns out, is also in poor condition. There are main factors contributing to the situation. As an alternative, more rational energy resource considers the power, i.e. the introduction of electric heating. Describes the main areas of application of electrical heating in different sec-tors of agriculture (crops, livestock, operation, ICC, etc.) both within the country and world agri-culture, where there is a tendency of constant growth of consumption of electro thermal process-es. The advantages and disadvantages of electric heating, identified the problem of efficient use of produced classification of technical means of electrical heating, are the main requirements of electro thermal equipment. It is established that the use of electricity as a heat source leads to the achievement of some positive results, ranging from improving working conditions, to reducing harmful emissions into the environment.

The article describes the district heating system, in which part of the heat of return water thermal power is used to supply heat to the district heating pumps, evaporators heating and hot water. Heat pumps use carbon dioxide as refrigerant. During the transitional period of the year, and the summer heat pump for preparing hot-water supply system uses the heat of the surrounding air. The heat of the ambient air is used in the intermediate heat exchanger between the first and second stages of the heat pump to cool the gas after the first stage of the compressor of the heat pump.

The article considers the energy efficient heating system with a heat pump, designed to cover the hot water load in not-heating period. As low-temperature heat source in the system is suggested to use the building heating system.

The article discusses the main sources of water supply of the city of Perm, alternative sources of water supply and the method of purification of drinking water well sewage treatment plants. The qualitative course of the advertising business has convinced people that the use of alternative sources, they receive high quality drinking water that meets all regulatory requirements. Obviously, the water obtained in this way has no smell, no taste, and if we add sweeteners, it will still tasty, but tasty water, it is still not useful. We all know what huge role water plays for the life and development of our body. Also in the article, we present the main parameters of water at the inlet and outlet of the treatment plant, provides a qualitative analysis of the major brands of bottled water, describes the main types of household filters, their advantages and disadvantages discussed the drinking water system on well water treatment stations, and provides the rationale for the proposed cleaning method.