This article studies the adsorption behaviours of Cu, Ni, and Zn in various natural soils. The effects of contact time, adsorption isotherm, and temperature were investigated using the batch method. The column method was also adopted, to simulate the conditions found in the field. The results indicate that the adsorption isotherm can be satisfactorily described using the Freundlich and Langmuir models. Almost all soils showed adsorption capacities, in the order of Ni>Cu>Zn. The adsorption capacity of the metals increased when temperatures increased. From the column test, we find that heavy metals can be leached from the soil using distilled water. After leaching, the adsorption capacity of the soils slightly increased.
Development of the human civilization leads to the pollution of environment. One of the contamination which are a real threat to soil and groundwater are leachates from landfills. In this paper the solute transport through soil was considered. For this purpose, the laboratory column tests of chlorides tracer and leachates transport on two soil samples have been carried out. Furthermore, the electrical resistivity method was applied as auxiliary tool to follow the movements of solute through the soil column what allowed to compare between the results obtained with column test method and electrical resistivity measurements. Breakthrough curves obtained by conductivity and resistivity methods represents similar trends which leads to the conclusion about the suitability of electrical resistivity methods for contamination transport monitoring in soil-water systems.