Fate and Transport of Lead and Copper in Calcareous Soil

Heavy metals transport to groundwater relies on the characteristics of soil, such as carbonate and clay minerals, organic matter content, soil pH, some other factors. Most heavy in calcareous soils are precipitated metal minerals; consequently, their is not anticipated. Therefore, current study focused impacts calcium presence adsorption lead (Pb) copper (Cu) using batch column experiments. To elucidate contaminants removal mechanisms soils, extensive laboratory investigations were conducted equilibrium kinetic isotherm two studied metals. The quick Pb2+ Cu2+ by was seen kinetics trials. In addition, sorption onto best described pseudo-second order model (R2 = 0.9979 0.9995 for Pb2+, respectively). explain data, Freundlich showed fitness 0.96) 0.98), collectively. parameters revealed that has favorable adsorption; however, unfavorable soil. results experiments higher binding than top surface column, making movement these very slow. columns, most ions sorbed at an initial 5 10 cm, respectively. findings this will help understanding fate soils.