Ecological monitoring in the impact zone of an industrial enterprise producing alumina

Abstract

Ecological monitoring in the impact zone of an industrial enterprise that produces alumina will ensure effective management of production processes. In the course of monitoring in the area of sludge farm near Achinsk alumina plant in Russia, systematic observations and timely detection of underground water contamination, determining the size of the contamination area, as well as studying the development of the underground water contamination area in time and space is carried out. In wells located in the immediate proximity of the sludge storage, maximum values of alkalinity, potassium and bicarbonate are observed and away from the sludge storage, the values of these indicators decrease. It is established that the zone of negative impact is located within 300-500 m from the contour of the sludge storage, outside of which the chemical composition of underground water almost corresponds to the background. Monitoring studies of the soil in the area adjacent to the sludge storage showed their recovery after reclamation and phytosanation. The analysis has shown that the ecological monitoring system at JSC “RUSAL Achinsk” combines all the necessary components: instrument and hardware maintenance, a measurement organization system, and a set of methods for analyzing the results of observations, providing all the necessary conditions for its implementation in practice.