Potential and drawbacks of EDDS-enhanced phytoextraction of copper from contaminated soils

0348074 - BÚ 2011 RIV GB eng J - Článek v odborném periodiku
Komárek, M. - Vaněk, A. - Mrnka, Libor - Sudová, Radka - Száková, J. - Tejnecký, V. - Chrastný, V.
Potential and drawbacks of EDDS-enhanced phytoextraction of copper from contaminated soils.
Environmental Pollution. Roč. 158, č. 7 (2010), s. 2428-2438. ISSN 0269-7491. E-ISSN 1873-6424
Výzkumný záměr: CEZ:AV0Z60050516
Klíčová slova: Phytoremediation * heavy metals * chalating agent
Kód oboru RIV: EF - Botanika
Impakt faktor: 3.395, rok: 2010

Incubation and pot experiments using poplar (Populus nigra L. cv. Wolterson) were performed in order to evaluate the questionable efficiency of EDDS-enhanced phytoextraction of Cu from contaminated soils. Despite the promising conditions of the experiment (low contamination of soils with a single metal with a high affinity for EDDS, metal tolerant poplar species capable of producing high biomass yields, root colonization by mycorrhizal fungi), the phytoextraction efficiency was not sufficient. The EDDS concentrations used in this study (3 and 6 mmol kg−1) enhanced the mobility (up to a 100-fold increase) and plant uptake of Cu (up to a 65-fold increase). However, despite EDDS degradation and the competition of Fe and Al for the chelant, Cu leaching cannot be omitted during the process. Due to the low efficiency, further research should be focused on other environment-friendly methods of soil remediation.
Trvalý link: http://hdl.handle.net/11104/0188691