Geochemical peculiarities of underground and surface waters in the area of influence of the ash dump of the Chita CHPP-1

Abstract

As a result of filtration leaks from the ash dump, an envelope with a length of over 3 km up to the lake Kenon has been formed along the flow of groundwater bicarbonate-sulphate waters with a mineralization of more than 1.0 g / l, substandard in terms of drinking waters relative to the total mineralization, the magnitude of stiffness and the content of magnesium and silicon. Pollution of natural waters in the areas of disposal of ash dumps is a common problem of coal power plants and thermal power plants [1, 2]. In this regard, the Chita CHPP-1 is no exception. The purpose of this message is to show the change in the chemical characteristics of groundwater and surface water in the zone of influence of its hydraulic ash dump, based on the results of the work performed by the authors. The study was based on the results of hydrogeochemical studies of natural and man-made objects for 2002, 2008 and 2015. Samples were taken in the autumn-summer period (open water period), which, given the fairly stable hydrogeochemical regime within the annual cycle, is fairly representative.