Considerations on Chemically-Enhanced Phytoextraction of Pb using EDTA under Field Conditions pp. 775-782
Authors: (Reinhard W. Neugschwandtner, Pavel Tlusto, Michael Komárek, Jiřina Száková, Lucie Jakoubková, Department of Agro-Environmental Chemistry and Plant Nutrition, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, Prague, Czech Republic, and others)
Abstract: Large areas of agricultural land have been contaminated with potentially toxic metals like Pb by smelting activities in the last centuries (Loska et al., 2004). The possible negative impacts on the environment and human health demand the need for remediation of contaminated sites. Conventional remediation techniques for heavily contaminated soils like excavation or soil-flushing are very cost intensive and not appropriate for large areas of low or medium contaminated agricultural land. Furthermore, these technologies result in a removal of topsoil and in many cases also subsoil needed for agricultural production or in the decrease of its fertility. Discussion and research has therefore focused on in-situ remediation technologies which seem to be cost-effective and environmentally acceptable. The use of plants for the remediation of potentially toxic metals, so-called phytoextraction, could be an alternative.