Lead sorption from aqueous solutions by kaolinite: laboratory experiments

The lead has adverse effects in contamination the aquatic environment, for this reason, a laboratory simulation was conducted using kaolinite collected from Ga’ara Formation at western Iraq to be considered as natural sorbent material that can addressed Pb2+ aqueous environments. Energy-Dispersive X-ray Spectroscopy and atomic absorption spectroscopy clarifying very fine grains pure phase with little quantity of quartz number active sites adsorption. sorption been carefully tested by several designed experiments. Five solutions different concentrations (25, 50, 75, 100 125 ppm) were under values pH (1.3-9). best recorded 9, an equilibrium reaction time 40 m solid-liquid ration 1.25 gm:50 ml. is endothermic two main mechanisms identified, rapid ion exchange which gets beginning during first 10 m, exchange, slow later due form ionic complexes