Application of s/s method in the treatment of contaminated soil from non-sanitary landfills in the republic of Serbia

Abstract

Stabilization/solidification (S/S) methods are applied in processes of the treatment of waste before to secure landfill disposal and the treatment of contaminated soil. In Serbia understanding of this method is limited. Republic of Serbia has 375 sites where land contamination is confirmed in laboratoty analysis. The most of identified sites are present in non-sanitary municipal landfills and uncontrolled dumps which require remediation. This paper analyzes possibilities of application of S/S methods in remediation of soil contaminated with copper (Cu). Cement based S/S method is applied to samples of contaminated materials. In some samples, additive, based on natural and synthetic zeolites, is added to cement. The level of Cu leached is indicator of the efficiency of S/S methods. The results show the conditions under which the S/S methods could be used for the most efficient immobilization of Cu in contaminated soil.