Proceedings Volume 2010 (format .pdf) - SimpBTH

To highlight phyto-remediation testing is done ex situ which involves theuse of plant growth substrate morus obtained by scraping soil from areascontaminated with lead.All test patterns phyto-remediation capacity of Morus species variantsinclude variants uncontaminated and contaminated with lead:V0 - uncontaminated control consisting of a solid growth substrate landconsists of celery, manure and sand in a ratio of 1:1:1, sterilized by autoclaving at120oC for 60 min and rehydrated with distilled water.V1-experimental version consists of solid substrate growth area consists ofsoil contaminated with lead overburdenThroughout the unfolding experiment will provide environmentalconditions, temperature, light and moisture in accordance with the requirements ofthe morus plant.RESULTS AND DISCUSSIONLead leaches into the soil to air, water and mud and soil from the surfacedown through the processes of diffusion, adsorption, leaching and water stripping,or macroorganisms. In soil, microorganisms are soluble, or turn them in suspensionin water reaching the plant roots.As a result of pollution and high load of soil with heavy metals and ofenhancing their mobility in soil, plants absorb large amounts of these elementsfrom the soil particles plus deposits with the pollutants existing in air, leaves, buds,etc.Once inside the ground, lead is very difficult to remove. Metal resist layerof 0-15 cm from the surface, which is strongly linked through processes ofadsorption, ion exchange, precipitation and complexation with organic matterabsorbed.Pb reaches the entire cortex and accumulates near the endoderm. To reachthe root xylem, lead must go through endoderm and Casparian bands, which is verydifficult. Consequently, the highest uptake of metals is performed by the youngroot, where the Casparian bands are not yet fully developed.Studies done on plants have shown that the roots have the ability to takesignificant amounts of Pb and its translocation to other parts of the plant takesplace through root. The way in which Pb enters the plant through the leavesdepends on their ability to absorb Pb from air sources, capacity, in turn, depends onleaf morphology. Fuzz on the leaves absorb heavy metals in the atmosphere.However, most of the Pb taken up by plants remains in the roots.The leaves have different abilities in terms of their ability to accumulatePb, depending on age. Maximum Pb content is found in mature leaves, in youngleaves is finding a small amount.221