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Quarry wastewater is the main pollutant for the surface and underground natural water bodies during mining operations. Negative impact is expressed in contamination of natural reservoirs with fine suspended particles and salt solutions. To reduce the harmful impact of quarry wastewater they are treated using artificial filtering massifs. Such massifs are commonly constructed using artificial and natural sorbents. The retention of particles in the filtering layer is the result of two main processes: the adhesion of fine particles of suspension to the surface of the particles of the artificial filtering massif and the jamming of coarser particles in the pores of the filter layer. Simultaneously with the processes of contaminants capture, the process of contaminants washing out of the filter array may occur. It occurs when the particle size distribution of the filter layer is unappropriated and filtration speeds are high, and may be accompanied by deformation of the filter media.

Both open-pit and underground coal mining produces a significant amount of wastewater. These waters are contaminated with suspended particles and dissolved substances. Industrial filters are used for the treatment of such wastewater, consisting of settling ponds, filter dams, purified water collection ponds and bacterial UV treatment stations. Filter dams, along with their relatively small size, have one big disadvantage: their construction requires a special filter load. Ceramzite, zeolites and specially produced sorbents are used as fillers for such loading. As an alternative to using expensive materials for mine's wastewater filtration, it is proposed to use overburden rocks. In order to assess the suitability of overburden for use as a filter material, it is necessary to carry out a corresponding study, which will consist in the construction of an experimental filter massif, the filtering of cjntaminated quarry water through it, the sampling of water and rocks, analysis of data. This paper describes the experiment on quarry wastewater treatment: the problem statement is considered, the assumed factors influencing the treatment process and their corresponding responses are established; some results are given. The order of realization of experiment, ways of measurement and calculation of observed responses is described. The received data will be used as initial at calculation of optimum designs and lithological compositions of filtering dams in water treatment systems at the enterprises of «SUEK-Kuzbass» JSC.

The most common purification methods in the coal industry are settling ponds and filtering treatment constructions. But in some cases, the use of traditional methods and schemes of water purification is complicated by the conditions of water discharge or does not provide the required water quality. For example, sharp seasonal fluctuations in the level of discharge and water pollution, a large number of spillways distant from each other and a change in their location during the development and moving of mining operations often make it difficult to use expensive and difficult to operate industrial wastewater treatment plants. Often, mining enterprises have a shortage of land areas to place such plants. In this regard, studies have been conducted aimed at identifying the possibility of water purification from suspended solids by filtering in arrays of coarse rock and semi-rock. Such arrays included, first of all, overburden dumps, various technological dams and embankments, as well as specially constructed filter arrays from mining waste. This article presents the results of studies to determine the location of the filter massif in the open pit “Kamyshansky”.