Influence of soil type, organic matter and total Pb content on lead adsorption from the soil solution

Year, pages: 2018, 142 - 149

Movement and attenuation of heavy metals in soils is among other processes controlled by sorption onto the surfaces of soil particles. Processes like precipitation/coprecipitation, complexation and competitive effects of other cations may also influence the attenuation, but in all cases sorption will be involved, and at natural and slightly polluted concentration levels sorption may be the predominating attenuation process. The Pb sorption on ten investigated soils from Žitný ostrov area (Slovakia) has been studied in laboratory conditions. Batch adsorption experiments were performed with a very wide range of lead concentrations (0,01-500 mg/l Pb2+) at a constant soil/solution ratio. The aim was estimation adsorbed amount of lead S, determination of adsorption parameters for several soil types and comparison obtained results with results introduced in publishing works. Previous experiments showed, that sorption of lead is well-described by Freundlich and Langmuir isotherm. Experimentally were determined parameters KF , n of Freundlich isotherm and parameters Qmax, KL of Langmuir isotherm. The influence of soil type, organic matter and total Pb content on adsorption were estimated. The results are introduced in this contribution.

Kováčová, V. 2018. Influence of soil type, organic matter and total Pb content on lead adsorption from the soil solution. In Acta Hydrologica Slovaca, vol. 19, no.1, pp. 142-149. 2644-4690.

Kováčová, V. (2018). Influence of soil type, organic matter and total Pb content on lead adsorption from the soil solution. Acta Hydrologica Slovaca, 19(1), 142-149. 2644-4690.