Method of Reclamation of the Tailing Dump Surface Containing Toxic Wastes Using Phototrophic Bacteria

Abstract

The application of complex of physicochemical and biological methods shows that the ecological situation is unsatisfactory and critical within the boundaries of influence of the mining technogenic systems of the study area. As a result it was necessary to develop ways of reducing the negative effects of toxic wastes on ecosphere objects due to mineral processing stockpiled in tailing dumps. In the article the results of long-term research on the problem of development of a method of reclamation of the tailing dump surface which contains toxic wastes from the tin-ore raw material processing, using the biological potential of living organisms (bioremediation) is presented. This way the productivity of cultural phytocenosis is increased and the sanitary and environmental qualities of the substrate simultaneously improved (toxic wastes from processing tin ore) due to changes in phototrophic bacteria (PB) formulas in the right direction. The method proposed provides a successful solution to the problem of reducing the negative effect of toxic wastes, and improving the efficiency of remediation using PB. A beneficial effect of PB on the formation of the soil structure was identified, as well as the plants growth (legume-grass mixtures and larch). The novelty of the method proposed is acknowledged by the Patent of the Russian Federation [1].