The rehabilitation of polluted by heavy metals soil and ecological utilization of the plants grown therein

Abstract

The aim of one-year (2007) screening investigations was determine and to evaluate the possibilities to rehabilitate Albeluvisol polluted by heavy metals and to search for the ecological utilization of the plants grown therein. The vegetative and modeling experiments set up in order to validate theoretically and practically the efficient facilities to clean up polluted by heavy metals soil in the safe chemical way in consistent with the biological remediation via plant growth. The most important practical achievement – successfully tested chemical oxidation method which allow to bind mobile heavy metals forms in the soil to immobile ones (insoluble compounds). That fore, chemical materials on the background of metal sulfides (MeS) might be used theretofore it’s needed amount calculating by stechiometry according to heavy metals mobile phase concentration in polluted soil. The efficiency of the method applied in the polluted Albeluvisol was confirmed by following indicators – the partially restored soil living status (plant growth and development betterment) as well the increase of biological soil activity (enzymes and soil respiration) observed.