No abstract

The main principle of the strategy of the integrated improvement the functioning of a city of the northern region and its infrastructure in winter is a systematic solution to the problem of industrial disposal of snow mass in various parts of the city road network, removal and utilization of snow. The implementation of the strategy in the capital of Russia - the city of Moscow is based on the use of the General snow disposal scheme. In connection with the meteorological conditions that have changed in recent years in Moscow, i.e. increase in the height of the snow cover and extension of the roadway paving subject to cleaning, the use of advanced technologies of snow collection and disposal, new types of deicing agents, the aim of the research was updating the General snow disposal scheme in Moscow. As a method of its implementation, we used a statistical analysis of the formation in recent years of the volume and average annual depth of the snow cover in the city of Moscow, an estimation of the heat capacity of sewers and a heating network for the utilization of snow mass. The article presents the results of the implementation of the updated General snow disposal scheme, gives suggestions for snow removal in extreme snowfalls.

No abstract

No abstract

Surface run-off from developed urban territories, be it orderly disposed surface run-off or diffused surface run-off, is among the main sources of man-made pollution and degradation of urban water bodies lo-cated within the boundaries of Moscow. In the present-day context, the improvement of their ecological condition is possible only in case of im-plementation of measures aimed at the reduction of human-induced impact on water bodies, elimination of accumulated environmental damage, re-covery of their self-purification ability and groundwater protection against pollution. The authors give the results of the seasonal monitoring of sur-face run-off composition and the composition of sludge produced by the treatment facilities located on urban territories of different functional pur-pose. The studies proved the idea that the application of polymeric floccu-lants intensifies the process of dewatering the sludge produced by treat-ment facilities in different seasons. The criteria characterizing the main ef-ficiency indices for the selection of technological approaches and equip-ment, were developed based on generalized and summarized experience in seasonal observations and evaluation of process and hydraulic parameters of the operation of surface run-off treatment facilities.