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

被引：37

作者：

Komarek, Michael ^{[1
]}

Vanek, Ales ^{[2
]}

Mrnka, Libor ^{[3
]}

Sudova, Radka ^{[3
]}

Szakova, Jirina ^{[1
]}

Tejnecky, Vaclav ^{[2
]}

Chrastny, Vladislav ^{[4
,5
]}

机构：

[1] Czech Univ Life Sci Prague, Dept Agroenvironm Chem & Plant Nutr, Prague 16521 6, Czech Republic

[2] Czech Univ Life Sci Prague, Dept Soil Sci & Soil Protect, Prague 16521 6, Czech Republic

[3] Acad Sci Czech Republ, Inst Bot, Dept Mycorrhizal Symbioses, CS-25243 Pruhonice, Czech Republic

[4] Czech Geol Survey, Prague 15200 5, Czech Republic

[5] Univ S Bohemia, Fac Sci, Ceske Budejovice 37005, Czech Republic

来源：

ENVIRONMENTAL POLLUTION | 2010年 / 158卷 / 07期

关键词：

Phytoremediation; Metals; Phytoextraction efficiency; Poplar; Chelant; FUNGUS GLOMUS-INTRARADICES; ARBUSCULAR MYCORRHIZAL; HEAVY-METALS; ASSISTED PHYTOEXTRACTION; ECTOMYCORRHIZAL FUNGI; LEAD PHYTOEXTRACTION; POPLAR; EDTA; EXTRACTION; CHELATE;

D O I：

10.1016/j.envpol.2010.04.002

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

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. (C) 2010 Elsevier Ltd. All rights reserved.

引用

页码：2428 / 2438

页数：11

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