A simulation experiment as a method for the investigation of the mobility of heavy metals from inundated land

Abstract

A simulation experiment was used to study the interaction of river water with different soils (arable land, orchards, meadows, pastures and forestland). The results obtained by sequential extraction before and after the simulation experiment were compared in order to determine the substrates of the heavy metals in inundated land and to evaluate their mobility. Samples of various soils were collected from the region of the future accumulation Lake Bogovina (Serbia) and analysed for ten elements using AAS, GFAAS and ICP. Investigation of the nature of the association of heavy metals and the identification of their substrates were provided by a five-step sequential extraction. Correlation analysis was used as a method for the determination of the substrates for heavy metals. The good correlation among the microelements and certain macroelements indicated the substrates of the microelements. Manganese and iron had a good correlation with most of the microelements. Calcium had only a few correlations with some microelements. Some elements, such as nickel and cadmium, had one substrate before and another after the simulation experiment.