Selected physico-chemical properties of zinc and lead ore tailings and their biological stabilisation

The following work focuses on problems and possibilities for revegetation of zinc and lead ore tailings in the Mining and Metallurgic Plant 'Boleslaw' in Poland, and on selected physical and chemical properties also regarding the vegetation, which spontaneously appears on the ponds. It was found that main factors impeding the development of vegetation are excessive contents of Zn, Pb, and Cd, as well as eolian erosion and deficiency of macroelements. The results of biological fertilisation tests were discussed in particular with regard to the deficiency of macroelements and the immobilisation of Zn, Pb, and Cd. Pot and field experiments permitted determination of this kind of interaction with doses of mineral fertilisation ensuring plant growth. Plants were introduced to the sediment without a layer of insulation. The obtained results, along with some thorough research into the conditions prevailing on the sedimentation ponds, may be used as a basis for the biological stabilisation of this kind of waste material.