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Grčman, Helena; Velikonja-Bolta, Š.; Vodnik, Dominik; Kos, B.; Leštan, Domen

doi:10.1023/a:1011857303823

Cited by 346 publications

(60 citation statements)

References 29 publications

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“…This indicated that EDDS was superior to EDTA in the phytoremediation of contaminated soils with multiple heavy metals. In addition, EDDS has the advantage of being readily biodegradable and less toxic to fish, daphnia and soil fungi (Jaworska et al, 1999;Grčman et al, 2003). The calculated half-life of EDDS in sludge-amended soil was 2.5 days (Jaworska et al, 1999).…”

Section: Discussionmentioning

confidence: 99%

“…But the total extraction of heavy metals was never more than 2.5 time more than that of the control due to the reduction in yields resulting from the application of NTA. EDDS at an application of 10 mmol kg -1 increased the concentrations of Pb, Zn and Cd in cabbage leaves 102-, 4.7-and 3.5-fold, respectively (Grčman et al, 2003). It was concluded that this procedure was far from effective, even at the highest concentrations of heavy metals achieved in the harvestable plant tissues.…”

Section: Introductionmentioning

confidence: 93%

“…Although EDTA is very effective in mobilizing metals in soils, EDTA and EDTA-heavy metal complexes can be toxic to plants and soil microorganisms and they can be also persistent in the environment due to their low biodegradability (Bucheli-Witschel and Egli, 2001;Grčman et al, 2003).…”

Section: Introductionmentioning

confidence: 99%

“…In recent years, the use of some easily biodegradable chelating agents, such as NTA (nitrilotriacetate) and EDDS (S,S-ethylenediaminedisuccinic acid) has been proposed to enhance the uptake of heavy metals in soil phytoremediation (Kulli et al, 1999;Kayser et al, 2000;Grčman et al, 2003;Kos and Leštan, 2003 a, b). However, the accumulation of Cu, Zn and Cd, in maize, Indian mustard and other plants only increased by a factor of 2 to 3, although the solubility of these metals in soil increased by a factor of 9 to 21 (Kayser et al, 2000).…”

Section: Introductionmentioning

confidence: 99%

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Enhanced phytoextraction of Cu, Pb, Zn and Cd with EDTA and EDDS

2005

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Chemically enhanced phytoextraction has been proposed as an effective approach to removing heavy metals from contaminated soil through the use of high biomass plants.Using pot experiments, the effects of the application of EDTA, EDDS and citric acid on the uptake of Cu, Pb, Zn and Cd by corn (Zea mays L. cv. Nongda 108) and bean (Phaseolus vulgaris L. white bean) plants were studied. The results showed that EDDS was more effective than EDTA at increasing the concentration of Cu in corn and beans.The application of 5 mmol kg -1 soil EDDS application to soil significantly increased concentrations of Cu in shoots , with maximum levels of 2060 and 5130 mg kg -1 DW in corn and beans, respectively, which were 45-fold and 135-fold higher than that in the corresponding control plants to which chelate had not been applied. Concentrations of Zn in shoots were also higher in the plants treated with EDDS than in those treated with EDTA. For Pb and Cd, EDDS was less effective than EDTA. The maximum Cu This is the Pre-Published Version.2 phytoextraction was found with the EDDS treatment. The application of EDTA and EDDS also significantly increased the shoot-to-root ratios of the concentrations of Cu, Pb, Zn and Cd in both plant species. The results of metal extraction with chelates showed that EDDS was more efficient at solubilizing Cu and Zn than EDTA, and that EDTA was better at solubilizing Pb and Cd than EDDS.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 93%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Enhanced phytoextraction of Cu, Pb, Zn and Cd with EDTA and EDDS

2005

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“…Vassil et al 15 studying the role of EDTA in the consumption of lead in a variety of the mustard plant, discovered a concentrating effect of 75 times, which is highly significant if account is taken that it is a potentially dangerous phenomenon in terms of metal biomagnification processes. Enhanced uptake of heavy metals by plants has been extensively studied [16][17][18] due to its potential use in heavy metal phytoextraction technologies, but special attention has been paid to their concomitant lixiviation and migration phenomena 17 . Dufková 19 studied the interaction of EDTA with photosynthetic organisms and found that EDTA is toxic, since it inhibits cellular division, chlorophyll synthesis and algal biomass production.…”

Section: Ecotoxicological Risks Of Edtamentioning

confidence: 99%

EDTA: the chelating agent under environmental scrutiny

Oviedo¹,

2003

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Recebido em 6/3/03; aceito em 28/4/03 EDTA: THE CHELATING AGENT UNDER ENVIRONMENTAL SCRUTINY. The chelating agent EDTA (ethylenediaminetetraacetic acid) is a compound of massive use world wide with household and industrial applications, being one of the anthropogenic compounds with highest concentrations in inland European waters. In this review, the applications of EDTA and its behavior once it has been released into the environment are described. At a laboratory scale, degradation of EDTA has been achieved; however, in natural environments studies detect poor biodegradability. It is concluded that EDTA behaves as a persistent substance in the environment and that its contribution to heavy metals bioavailability and remobilization processes in the environment is a major concern.

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Ecohydrological modeling in agroecosystems: Examples and challenges

Porporato

Feng

Manzoni

et al. 2015

Water Resources Research

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Human societies are increasingly altering the water and biogeochemical cycles to both improve ecosystem productivity and reduce risks associated with the unpredictable variability of climatic drivers. These alterations, however, often cause large negative environmental consequences, raising the question as to how societies can ensure a sustainable use of natural resources for the future. Here we discuss how ecohydrological modeling may address these broad questions with special attention to agroecosystems. The challenges related to modeling the two-way interaction between society and environment are illustrated by means of a dynamical model in which soil and water quality supports the growth of human society but is also degraded by excessive pressure, leading to critical transitions and sustained societal growth-collapse cycles. We then focus on the coupled dynamics of soil water and solutes (nutrients or contaminants), emphasizing the modeling challenges, presented by the strong nonlinearities in the soil and plant system and the unpredictable hydroclimatic forcing, that need to be overcome to quantitatively analyze problems of soil water sustainability in both natural and agricultural ecosystems. We discuss applications of this framework to problems of irrigation, soil salinization, and fertilization and emphasize how optimal solutions for large-scale, long-term planning of soil and water resources in agroecosystems under uncertainty could be provided by methods from stochastic control, informed by physically and mathematically sound descriptions of ecohydrological and biogeochemical interactions.

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Untitled

Cited by 346 publications

References 29 publications

Enhanced phytoextraction of Cu, Pb, Zn and Cd with EDTA and EDDS

Enhanced phytoextraction of Cu, Pb, Zn and Cd with EDTA and EDDS

EDTA: the chelating agent under environmental scrutiny

Ecohydrological modeling in agroecosystems: Examples and challenges

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