Induced Phytoextraction of Mercury

2021 ◽  
pp. 1-21
Author(s):  
Anna S. Makarova ◽  
Elena Nikulina ◽  
Petr Fedotov
Keyword(s):  
Induced Phytoextraction

scholarly journals Induced-phytoextraction of heavy metals from contaminated soil irrigated by industrial wastewater with Marvel of Peru (Mirabilis jalapa L.)

2011 ◽  
Vol 57 (No. 8) ◽  
pp. 364-371 ◽  
Author(s):  
Y.B. Sun ◽  
G.H. Sun ◽  
Q.X. Zhou ◽  
Y.M. Xu ◽  
L. Wang ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Contaminated Soil ◽  
Industrial Wastewater ◽  
Metal Uptake ◽  
Primary Objective ◽  
Shoot Biomass ◽  
Heavy Metal Uptake ◽  
Aerial Parts ◽  
Mirabilis Jalapa ◽  
Induced Phytoextraction

The primary objective of this study was to evaluate the effect of ethylene diamine tetraacetic acid (EDTA) and citric acid (CA) on Mirabilis jalapa L. growth and phytoextraction of heavy metals from the multi-metal contaminated soil. The results showed that the application of CA (5 and 8 mmol/kg) and EDTA (5 mmol/kg) increased plant growth, while when the concentration of EDTA was up to 8 mmol/kg, the shoot biomass significantly decreased relative to the control plants (P < 0.05); it suffered 48.1%, 53.1%, 58.9%, and 78.2% reduction, respectively, compared to CK, CA-5, CA-8, and EDTA-5. EDTA was more effective than CA at increasing heavy metal uptake in aerial parts of the plants, the shoot concentrations of Cd, Cu, Pb, and Zn increased by 0.55, 3.08, 3.28, and 1.0-fold in the 8 mmol/kg EDTA-treated soils relative to the treatment of 8 mmol/kg CA. The maximum of Cd, Cu, and Pb phytoextraction and remediation factor (RF) were found with 5 mmol/kg EDTA treatment. For Zn, 8 mmol/kg EDTA was most efficient in increasing Zn accumulation in aboveground of M. jalapa.

scholarly journals Use of phytoremediation techniques for elimination of lead from polluted soils

2021 ◽  
Vol 9 (2) ◽  
pp. 125-132
Author(s):  
Alžbeta Hegedűsová ◽  
Silvia Jakabová ◽  
Andrea Vargová ◽  
Ondrej Hegedűs ◽  
Tímea Judit Pernyeszi
Keyword(s):  
Chelating Agent ◽  
Fold Increase ◽  
Green Plant ◽  
Lead Uptake ◽  
Polluted Soils ◽  
Garden Pea ◽  
Plant Parts ◽  
Pea Roots ◽  
Hyperaccumulating Plant ◽  
Induced Phytoextraction

The effect of chelating agent – EDTA (ethylene-diamine-tetra-acetic acid) was used for induced phytoextraction to increase intensity of lead transfer from roots to aboveground parts of garden pea. Pot experiments with contaminated soil substrata (50 mg Pb.kg-1 and 100 mg Pb.kg-1) were established for experimental purposes in growth chamber. The results showed that application of 5 and 10 mmol EDTA.kg-1 to experimental variants with 100 mg Pb.kg-1 doubled the increase of lead uptake by pea roots in comparison with variants without EDTA addition, which was statistically confirmed. Intensive lead transfer was observed from roots to aboveground parts of pea after application of 5 and 10 mmol EDTA.kg-1 in variant with 50 mg Pb.kg-1 (40-fold increase), as well as in variant with 100 mg Pb.kg-1 (17-fold increase). The results showed that induced phytoextraction can improve the mobility of lead from soil to plant roots. Application of 5 mmol EDTA.kg-1 resulted to 40-fold increase of lead transfer to green plant parts, despite the fact, that garden pea does not belong to conventional metal hyperaccumulating plant species. Following the results, pea could be used for decontamination of arable soil. The optimal EDTA concentration seems to be 5 mmol.kg-1. Therefore, application of 10 mmol EDTA.kg-1 decreased root mass about 55%, which resulted to decrease the intensity of lead uptake.

scholarly journals Effect of biodegradable chelators on induced phytoextraction of uranium- and cadmium- contaminated soil by Zebrina pendula Schnizl

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Li Chen ◽  
Dan Wang ◽  
Chan Long ◽  
Zheng-xu Cui
Keyword(s):  
Contaminated Soil ◽  
Contaminated Soils ◽  
Rank Order ◽  
Single Plant ◽  
High Concentration ◽  
Control Groups ◽  
Cd Uptake ◽  
Translocation Factors ◽  
Induced Phytoextraction ◽  
Cadmium Contaminated Soil

AbstractThis study investigated the effect of ethylenediamine-N,N′-disuccinic acid (EDDS), oxalic acid (OA), and citric acid (CA) on phytoextraction of U- and Cd-contaminated soil by Z. pendula. In this study, the biomass of tested plant inhibited significantly following treatment with the high concentration (7.5 mmol·kg−1) EDDS treatment. Maximum U and Cd concentration in the single plant was observed with the 5 mmol·kg−1 CA and 7.5 mmol·kg−1 EDDS treatment, respectively, whereas OA treatments had the lowest U and Cd uptake. The translocation factors of U and Cd reached the maximum in the 5 mmol·kg−1 EDDS. The maximum bioaccumulation of U and Cd in the single plants was 1032.14 µg and 816.87 µg following treatment with 5 mmol·kg−1 CA treatment, which was 6.60- and 1.72-fold of the control groups, respectively. Furthermore, the resultant rank order for available U and Cd content in the soil was CA > EDDS > OA (U) and EDDS > CA > OA (Cd). These results suggested that CA could greater improve the capacity of phytoextraction using Z. pendula in U- and Cd- contaminated soils.

The use of poplar during a two-year induced phytoextraction of metals from contaminated agricultural soils

2008 ◽  
Vol 151 (1) ◽  
pp. 27-38 ◽  
Author(s):  
Michael Komárek ◽  
Pavel Tlustoš ◽  
Jiřina Száková ◽  
Vladislav Chrastný
Keyword(s):  
Agricultural Soils ◽  
Induced Phytoextraction

Chelator-induced phytoextraction of zinc and copper by rice seedlings

Ecotoxicology ◽  
2014 ◽  
Vol 23 (4) ◽  
pp. 749-756 ◽  
Author(s):  
Xiao-Zhang Yu ◽  
Dun-Qiu Wang ◽  
Xue-Hong Zhang
Keyword(s):  
Rice Seedlings ◽  
Induced Phytoextraction

Thiosulphate-induced phytoextraction of mercury in Brassica juncea: Spectroscopic investigations to define a mechanism for Hg uptake

2018 ◽  
Vol 242 ◽  
pp. 986-993 ◽  
Author(s):  
Jianxu Wang ◽  
Christopher W.N. Anderson ◽  
Ying Xing ◽  
Yuhong Fan ◽  
Jicheng Xia ◽  
...  
Keyword(s):  
Brassica Juncea ◽  
Spectroscopic Investigations ◽  
Induced Phytoextraction
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