Soil washing of Pb, Zn and Cd using biodegradable chelator and permeable barriers and induced phytoextraction by Cannabis sativa

Kos, B.; Leštan, Domen

doi:10.1023/b:plso.0000047724.46413.27

Cited by 39 publications

(20 citation statements)

References 12 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Levels of Pb, Zn, Cu and Cd in shoot of hydroponically grown maize were elevated by addition of EDTA, EDDS and IDSA in comparison with the control. EDTA was most effective for Pb accumulation in accordance with many other reports [11,15,[35][36][37].…”

Section: Discussionsupporting

confidence: 91%

“…In most cases, the EDTA treatment was superior in solubilizing soil Pb for root uptake and translocation into shoot [11,15,[35][36][37] due to its strong chemical affinity for Pb (log Ks = 17.88) [38]. And evidence showed that, the accumulation of Pb in plant shoots was correlated with the formation of the Pb-EDTA complex which was the major form of Pb absorbed and translocated by plants [29,37].…”

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Effects of IDSA, EDDS and EDTA on heavy metals accumulation in hydroponically grown maize (Zea mays, L.)

Zhao

Mei-zhu

Jiang

et al. 2010

Journal of Hazardous Materials

View full text Add to dashboard Cite

a b s t r a c tHeavy metals contamination of soil is a widespread global problem. Chelant assisted phytoextraction has been proposed to improve the efficiency of phytoextraction which involves three subsequent levels: transfer of metals from the bulk soil to the root surfaces, uptake into the roots and translocation to the shoots. However, most studies focused on the first level. A hydroponic experiment, which addresses the latter two levels, was conducted to study the effects of EDTA, EDDS and IDSA on the uptake and the distribution of Pb, Zn, Cu and Cd in the apoplast and the symplast of roots of maize (Zea mays, L.). The concentrations of the metals (with exception of Zn) in the shoots were increased significantly by addition of all the chelants. EDTA was most effective for Pb uptake and IDSA was interestingly most effective for Cd uptake. Pb in the roots with EDTA was mostly distributed in the apoplast, while Zn, especially with IDSA, was mostly located in the symplast. The results indicated that, the capacity of chelant to enhance the nonselective apoplastic transport of metal may be most important for chelant enhanced phytoextraction.

show abstract

Section: Discussionsupporting

confidence: 91%

Section: Discussionmentioning

confidence: 99%

Effects of IDSA, EDDS and EDTA on heavy metals accumulation in hydroponically grown maize (Zea mays, L.)

Zhao

Mei-zhu

Jiang

et al. 2010

Journal of Hazardous Materials

View full text Add to dashboard Cite

show abstract

“…To decrease the chance of groundwater pollution with metals during chelate-facilitated phytoremediation (Jiang et al, 2003; Table 1), protective strategies have been suggested, such as using a dual-pipe subirrigation-drainage system (Madrid et al, 2003), increasing sorption (increasing field capacity) of soils by adding acrylamide hydrogels (Kos and Leštan, 2003), addition of physical barriers (e.g., vermiculite and apatitie mixture) (Kos and Leštan, 2004), minimizing the concentration of chelate used, dosage splitting (Schmidt, 2003), use of biodegradable synthetic chelating agents (Kos and Leštan, 2004;Tandy et al, 2004), and use of less-toxic natural chelators, like humic acids (Evangelou et al, 2004; Table 1) and biosurfactants generated by bacteria and yeast (Wang and Mulligan, 2004). Keller et al (2005) showed that thermal treatment of Cdenriched plants may be a feasible option for evaporatively separating Cd from plant residues.…”

Section: Phytoremediation By Hyperaccumulator and Nonhyperaccumulatormentioning

confidence: 99%

Cadmium in plants on polluted soils: Effects of soil factors, hyperaccumulation, and amendments

2006

View full text Add to dashboard Cite

“…Soils are prone to contamination with heavy metals such as zinc (Zn), cadmium (Cd), and lead (Pb) due to various anthropogenic activities associated with agricultural, industrial, transportation, and waste disposal sectors. Concentrations of Pb, Zn, and Cd have increased throughout the twentieth century because of mining and atmospheric deposition from Pb and Zn smelting, and soil applications of sludges, minerals and pesticides (Kos and Leštan 2004). The anthropogenic heavy metals are believed to easily accumulate in the surface soil (Baker 1990;Samsoe-Petersen et al 2002), leading to serious environmental concerns (Berti and Jacobs 1996).…”

Section: Introductionmentioning

confidence: 99%

Redistribution of zinc, cadmium, and lead among soil fractions in a sandy calcareous soil due to application of poultry litter

Jalali

Khanboluki

2007

Environ Monit Assess

View full text Add to dashboard Cite

This study was conducted to evaluate, using soil columns, the mobilization and redistribution of heavy metals (Zn, Cd, and Pb) among different soil fractions by soluble organic ligands within poultry litter. Uncontaminated soil was amended with Zn, Cd, and Pb to achieve concentration levels of 400, 8, and 200 mg kg(-1) soil, respectively. Columns repacked with this amended soil were leached with distilled water, 0.01 M EDTA, 0.01 M CaCl2, or poultry litter extract (PLE) solutions. After leaching, the soil samples in the columns were sequentially extracted for exchangeable (EXC), carbonate (CARB) organic matter (OM), Mn oxide (MNO), Fe oxide (FEO), and residual (RES) fractions. Considerable mobilization of Zn, Cd, and Pb occurred in soil during EDTA leaching. Leaching with PLE and CaCl2 solutions significantly decreased Zn and Cd concentrations in the EXC, CARB, and OM fractions. These solutions significantly decreased Pb concentration in the EXC fraction, while PLE solubilized more Pb from EXC fraction than CaCl2. Thus, the applied poultry litter may change Zn, Cd, and Pb fractions in metal-amended soil and possibly enhance metal mobility.

show abstract

Soil washing of Pb, Zn and Cd using biodegradable chelator and permeable barriers and induced phytoextraction by Cannabis sativa

Cited by 39 publications

References 12 publications

Effects of IDSA, EDDS and EDTA on heavy metals accumulation in hydroponically grown maize (Zea mays, L.)

Effects of IDSA, EDDS and EDTA on heavy metals accumulation in hydroponically grown maize (Zea mays, L.)

Cadmium in plants on polluted soils: Effects of soil factors, hyperaccumulation, and amendments

Redistribution of zinc, cadmium, and lead among soil fractions in a sandy calcareous soil due to application of poultry litter

Contact Info

Product

Resources

About