Researches on groundwater pollution in the area of industrial waste dumps

Abstract

Industrial waste dumps in exploitation or conservation represent a high risk of groundwater pollution. The Moldovan area has a large number of industrial waste dumps for mine waste, slag and ash from thermal power stations and steel plants, technological waste, etc. The degradation of the constructive structure of the deposits allows the underground infiltration of pollutants and contamination of water sources. The case study highlights the movement of a complex of pollutants from the landfill of a metalworking plant into the underground water. During the research measurements were made in observation drills and laboratory determinations were performed. The processing of the experimental data showed substantial overshoots in the following physical and chemical indicators: total iron (Fe +), ammonium (NH4), hardness, potassium permanganate (KMnO4), sulphates (SO4-) and chlorides (C1-). Contaminants from the landfill polluted groundwater and surface water sources for several localities.