Phytoaccumulation potential of nine plant species for selected nutrients, rare earth elements (REEs), germanium (Ge), and potentially toxic elements (PTEs) in soil

2022 ◽  
pp. 1-11
Author(s):  
Precious Uchenna Okoroafor ◽  
Clement Oluseye Ogunkunle ◽  
Hermann Heilmeier ◽  
Oliver Wiche
Keyword(s):  
Rare Earth ◽  
Rare Earth Elements ◽  
Plant Species ◽  
Toxic Elements ◽  
Potentially Toxic Elements

Potentially toxic elements and rare earth elements in sandy soils from the Brazilian Cerrado

2021 ◽  
Vol 193 (12) ◽  
Author(s):  
Vanessa Martins ◽  
Ronny Sobreira Barbosa ◽  
Ozeas S Costa Jr ◽  
Yuri Jacques Agra Bezerra da Silva ◽  
Ygor Jacques Agra Bezerra da Silva ◽  
...  
Keyword(s):  
Rare Earth ◽  
Rare Earth Elements ◽  
Toxic Elements ◽  
Sandy Soils ◽  
Potentially Toxic Elements ◽  
Brazilian Cerrado

scholarly journals Two-Step Solvent Extraction of Radioactive Elements and Rare Earths from Estonian Phosphorite Ore Using Nitrated Aliquat 336 and Bis(2-ethylhexyl) Phosphate

Minerals ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 388
Author(s):  
Silvester Jürjo ◽  
Liis Siinor ◽  
Carolin Siimenson ◽  
Päärn Paiste ◽  
Enn Lust
Keyword(s):  
Rare Earth ◽  
Solvent Extraction ◽  
Rare Earth Elements ◽  
Toxic Elements ◽  
Downstream Processing ◽  
Liquid Extraction ◽  
Aliquat 336 ◽  
Radioactive Elements ◽  
Improved Method ◽  
Ph Values

Estonian phosphorite ore contains trace amounts of rare earth elements (REEs), many other d-metals, and some radioactive elements. Rare earth elements, Mo, V, etc. might be economically exploitable, while some radioactive and toxic elements should be removed before any other downstream processing for environmental and nutritional safety reasons. All untreated hazardous elements remain in landfilled waste in much higher concentration than they occur naturally. To resolve this problem U, Th, and Tl were removed from phosphorite ore at first using liquid extraction. In the next step, REE were isolated from raffinate. Nitrated Aliquat 336 (A336[NO3]) and Bis(2-ethylhexyl) Phosphate (D2EHPA) were used in liquid extraction for comparison. An improved method for exclusive separation of radioactive elements and REEs from phosphorite ore in 2-steps has been developed, exploiting liquid extraction at different pH values.

scholarly journals Rare earth elements (REEs): Effects on germination and growth of selected crop and native plant species

Chemosphere ◽  
2014 ◽  
Vol 96 ◽  
pp. 57-66 ◽  
Author(s):  
Philippe J. Thomas ◽  
David Carpenter ◽  
Céline Boutin ◽  
Jane E. Allison
Keyword(s):  
Rare Earth ◽  
Rare Earth Elements ◽  
Plant Species ◽  
Native Plant ◽  
Native Plant Species ◽  
Germination And Growth

Multitracer study on the uptake mechanism of yttrium and rare earth elements by autumn fern

2002 ◽  
Vol 90 (5) ◽  
Author(s):  
Takuo Ozaki ◽  
Shizuko Ambe ◽  
S. Enomoto ◽  
Y. Minai ◽  
S. Yoshida ◽  
...  
Keyword(s):  
Rare Earth ◽  
Rare Earth Elements ◽  
Plant Species ◽  
Ionic Radius ◽  
High Uptake ◽  
Uptake Mechanism ◽  
Chelating Reagents ◽  
Uptake Mechanisms

SummaryIrrespective of low bioavailability, some plant species accumulate Y and rare earth elements (REEs) to a great extent (accumulator species). The uptake mechanisms of Y and REEs were investigated for autumn fern, one of accumulator species. For comparison, plant species which accumulated poorly REEs (non-accumulator species) were also studied. In the present investigation, two noticeable phenomena were observed. (I) Autumn fern showed no ionic-radius dependence of Y-REE uptake by leaves, while non-accumulator species showed an extremely high uptake for Y compared with REEs. (II) Y-REE uptake by autumn fern was influenced by the addition of chelating reagents to the uptake solution, while no effect was observed for non-accumulator species.

scholarly journals Phytoextraction of rare earth elements in herbaceous plant species growing close to roads

2017 ◽  
Vol 24 (16) ◽  
pp. 14091-14103 ◽  
Author(s):  
Patrycja Mikołajczak ◽  
Klaudia Borowiak ◽  
Przemysław Niedzielski
Keyword(s):  
Rare Earth ◽  
Rare Earth Elements ◽  
Plant Species ◽  
Herbaceous Plant

scholarly journals Influence of toxic elements on the simultaneous uptake of rare earth elements from contaminated waters by estuarine macroalgae

Chemosphere ◽  
2020 ◽  
Vol 252 ◽  
pp. 126562 ◽  
Author(s):  
Marcelo Costa ◽  
Bruno Henriques ◽  
João Pinto ◽  
Elaine Fabre ◽  
Mariana Dias ◽  
...  
Keyword(s):  
Rare Earth ◽  
Rare Earth Elements ◽  
Toxic Elements ◽  
Contaminated Waters
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