Sorption characteristics of a landfill clay soil as a retardation barrier of some heavy metals

The Pêclet number values (< 32) indicate dominance of dispersion over advection. The < 2 μm fraction of LSC may be used to attenuate Zn2 +, Cd2 + and Pb2 + ions presented in AL Hammam landfill leachate from reaching the shallow groundwater.