Devonian Clay Modification for the Improvement of Heavy Metal Sorption Properties

Contamination with heavy metals is an important problem as bioaccumulation effects of those are creating direct and indirect hazards to environment and human health. Contaminated soil remediation can be done by various technologies and using of soil amendments is the one. Clay modification experiments were done to study heavy metal sorption from spiked solutions and leaching from contaminated soils. The aim of this paper is to give an overview of Devonian clay modification possibilities in order to improve heavy metal sorption capacity and immobilization options. Modification was done by using Ca, Na salts, HNO 3 (protonated forms), Fe-oxyhydroxide. Research has shown better sorption due to…