(63e) Phytoremediation of A Wetland SOIL, by TWO METHODS In Bogota Colombia

In this project, the efficiency of two phytoremediation methods for soil (phytoextraction and phytostabilization) was investigated to remove heavy metals such as Pb, Cu and Ni.  The place for this research was a wetland call “La conejera”.

 In this wetland the pollution levels has been growing due the urbanization impact in Colombia. The first step in the project was physicochemical characterization, followed by the selection of the phytoremediation process. The methods chosen to remove Pb, Cu and Ni, were phytoextraction and phytostabilization. The ability and effectiveness to remove the heavy metals was evaluated.  

For the phytoextraction process, the mustard (sinapis Alba) and barley (Hordeum vulgare) were the plants selected. The mustard was used due its adaptability in wet soils, faster germination and growth. The barley was used due resistance to extreme weather conditions. The results obtained shown that all metals were remove by the barley and only the Copper when the mustard was used.   

  In the phytostabilization method, the plant used was Ryegrass perenne (lolium perenne L.). The results obtained shown that all metals was retired for this plant.