Selection of natural materials for In situ remediation and prevention of environment contamination by lead

Stability of the solid matrix - contaminant system represents a crucial parameter in selection of the appropriate natural material for in situ remediation of the environment contaminated by toxic heavy metals. We have investigated, using a calculation of cohesive energy, suitability of different natural materials which are appropriate for in situ remediation of soil and water contaminated by Pb. Based on the applied theoretical criterion we have selected a natural apatite from the Lisina deposit (Bosilegrad, Yugoslavia) as a promising solid matrix for large-scale remediation and prevention of pollution by Pb in a cost-effective manner.