The applicability assessment of technical solutions for a feasibility study on the purification of groundwater in the Ilek River Valley from Boron for the modern hydro chemical situation

Abstract

[EN] This scientific article is devoted to the problem of pollution of the Aktobe basin with boron by the waters of the Ilek River, which drains contaminated groundwater. In connection with not full implementation of the decisions taken to reduce the concentration of pollutants, in particular boron, the problem of groundwater pollution is exacerbated. The monitoring datas fix the increased level of pollution. Initiative field studies and the results of the determination of sampling samples showed an excess of threshold limit value of boron both in the zone of the old sludge accumulator and in the Aktobe basin. To justify the need to develop and implement a qualitatively new approach to the solution of the problem of groundwater contamination in the Ilek river valley and the Aktobe Basin, boron made estimates for the topographic and hydrogeological, combined with the technical solutions, the feasibility study, maps. It is shown that now the front of groundwater pollution from the industrial site and the new sludge collector has approached the river, and therefore the technical solution of the feasibility study for the second section no longer corresponds to reality. The dynamics of the pollution processes of the Ilek River in the old sludge accumulator zone is analyzed. Based on the regression model, a forecast is made of the changes in boron content in the right bank of the Ilek River. It is shown that the technical feasibility study on the first site requires a revision.

As a new approach to solving the problem, it is proposed to develop a system from a constantly operating model of geo-filtration and a model of turbulent macro diffusion combined with it. Mapping izoconcentrate of boron and other pollutants of groundwater will provide an opportunity to consider them from the standpoint of alternative environmental technologies, for example, as the basis of boron fertilizers.