Scientific Research Activities

Mining exploitation causes, as results of the technological processes, mining ponds, waste tailings and the surfacing of the waters that cross existing mine galleries. Heavy metals are present in all environmental factors of such areas and significantly affect local ecosystems and human health.

To neutralize the negative impact of mining, through NETMIN project, bio remedial soil depollution studies were conducted, using two bioindicator plants Hordeum vulgare L-Hordeum hexastihon L (barley) and Silphium perfoliatum (cup plant). The soil samples were collected from mining tailings (4 zones). The soil samples were placed in vegetation vessels along with bioindicator plants. Biometric measurements were carried out during the vegetation period. At the end of the vegetation period, the plants were separated and dried at room temperature. The dried plants were separated into roots and strain and then calcined. The soil and ash samples were mineralized, determining heavy metals by atomic absorption spectrometry. Two successive cultivations have been carried out. The research aimed to determine the characteristics of the bioremediation process, by observing the variation of heavy metals in the plant as a result of the accumulation process.