Effect of sorption on cadmium penetration risk to groundwater

Rok, strany: 2016, 175 - 181

Mobility of heavy metal ions and penetration to groundwater is retarded mainly their sorption on soil sorption complex. The sorption in the loamy soil from locality Lehnice (two different soil depth L1 and L2) and in the sandy-loamy soil from locality Štvrtok na Ostrove (two different soil depth SL1 and SL2) has been studied in laboratory conditions. The results are introduced in this contribution. Batch adsorption experiments were performed with a very wide range of heavy metal concentrations (0,1-1000 mg⋅l-1 Cd2+) at a constant soil/solution ratio. Distribution coefficients K were calculated as ratio between equilibrium metal concentration in soil and equilibrium metal concentration in solution. The experimentally determined parameters of Freundlich isotherm K, n of loamy soil for soil depths L1, L2 were: KL1 = 43,32 l⋅kg-1, n = 1,291 KL2 = 24,32 l⋅kg-1, n = 1,45 and for sandy-loamy soil for soil depths SL1, SL2 were: KSL1 = 15,67 l⋅kg-1, n = 1,06 KSL2 = 8,56 l⋅kg-1, n = 1,16. Adsorption of heavy metal ions decreased with the soil profile depth.

ISO 690:

Kováčová, V. 2016. Effect of sorption on cadmium penetration risk to groundwater. In Acta Hydrologica Slovaca, vol. 17, no.2, pp. 175-181. 2644-4690.

APA:

Kováčová, V. (2016). Effect of sorption on cadmium penetration risk to groundwater. Acta Hydrologica Slovaca, 17(2), 175-181. 2644-4690.