The effects of different amendments on the mobility and toxicity of nickel and copper in polluted soils

The efficiency of different amendments for the remediation of acidic sandy soils contaminated with heavy metals was assessed in a model laboratory experiment with podzols from the Kola Peninsula. The addition of SLOVAKITE®, lime, and vermiculite leads to significant reduction of the acidity and mobility of nickel and copper in polluted soils, as well as an increase in the length and phytomass of shoots and roots of Festuca rubra. The application of superphosphate for the remediation of soils that were polluted with nickel and copper was less helpful, while the apatite and zeolite additives were inefficient.