Phytomining (PM) is defined as the process of using plants capable of bio-extracting metals from soil in order to explore them economically. This relatively new, innovative method has been gathering significant attention in both the academic and commercial domains. Conventional mining methods are often economically unviable …
قرأ أكثر
Phytomining offers the possibility of exploiting low grade ore bodies or uneconomic mineralized soils with minimal effect on the environment as compared to opencast mining.
قرأ أكثر
The known capacity of plants to potentially hyperaccumulate Re (formal threshold for Re hyperaccumulation has not yet been defined) and the high price of this metal, make rhenium a primary target...
قرأ أكثر
Phytomining is an inexpensive and environmentally friendly method for extracting rhenium and remediating exhausted soils near copper mines and ore-dressing regions. The scattered rhenium in the environment around copper and molybdenum mines and copper processing factories is a potential source for rhenium production.
قرأ أكثر
Ognyan Bozhkov, Christina Tzvetkova and L. Borisova, Phytomining of Re- an alternative method for Re production, Proceedings of 7th International Symposium on Technetium and Rhenium- Sience and ...
قرأ أكثر
The advantages of the phytomining method of Re recovery from soils proposed by us were illustrated by comparison with the classical methods for Re recovery. Key Words: Rhenium, Phytomining, Clover, Lucerne, Environmental friendliness 1 Introduction Rhenium is a rare metal (its occurrence in Earth's crust amounts to 7x10-8 %). with unique ...
قرأ أكثر
It has unique physicochemical properties that allow its use in preparation of high-temperature superalloys; rhenium improves the physicochemical properties of Ni-Re, W …
قرأ أكثر
Role of bacteria and mycorrhizal fungi in phytomining: status and future perspectives. Microbe Mediated Remediation of Environmental Contaminants 2021 ... On the uptake of rhenium by plants: Accumulation and recovery from plant tissue. Journal of …
قرأ أكثر
Abstract. The scattered rhenium in the environment around copper and molybdenum mines and copper processing factories is a potential source for rhenium production. Phytomining is an inexpensive and environmentally friendly method for extracting rhenium and remediating exhausted soils near copper mines and ore …
قرأ أكثر
Made available by U.S. Department of Energy Office of Scientific and Technical Information ...
قرأ أكثر
PDF | On Dec 14, 2007, Ognyan Bozhkov and others published 30. Ognyan Bozhkov, Christina Tzvetkova,"Advantages of Rhenium Phytomining by Lucerne and Clover from Ore Dressing Soils ...
قرأ أكثر
Rhenium (Re) is one of the rarest (7 × 10−8 %) and most widely dispersed elements on Earth's upper crust. As a consequence of its scarcity, Re is also one of the most expensive metals in the world market. Re is indeed highly demanded by the aerospace industry for the production of high-temperature superalloy turbine blades. …
قرأ أكثر
This chapter reviews the advances of phytomining since its inception in the 1990s, focusing on the results obtained to date, with gold, nickel, thallium, and rhenium. Idioma original English
قرأ أكثر
Phytomining is a technique that uses hyperaccumulator plants to extract valuable metals/metalloids from agro-industrial and mining wastes or contaminated sites. Learn …
قرأ أكثر
In the present work, we aimed to focus on the identification and characterization of the heavy metal-tolerant plant species growing spontaneously at the tailings site of the Sarcheshmeh copper mine, south of Iran. Our aim was to find the plant species that were potentially useful for phytoextraction purposes. The concentrations of As, Cu, Mo, Ni, …
قرأ أكثر
Phytomining is a technique that extracts valuable metals (such as nickel, gold, and rare earth elements) with hyperaccumulators or crops from lean ore or metal …
قرأ أكثر
1. Introduction. The behaviour of rhenium (Re) in seawater is defined by the low reactivity of the perrhenate ion (ReO 4 −; Re(VII)), which is the only significant Re species found in ocean waters [].The concentration of Re in the open ocean (0.0074–0.009 ng g −1; [2,3]) is a factor of three higher than average river water (approx. 0.005 pg g …
قرأ أكثر
As rhenium is rare and expensive, there is interest in rh enium phytomining (Note 4). Dietary rhenium Alfalfa, in the capacity of rhenium hyperac cumulator plant (Note 4), was grown on exhausted ...
قرأ أكثر
Phytomining. Phytomining (or agromining) involves cultivating selected plants known as hyperaccumulators on metal-rich soils to extract high value metals for profit (Corzo Remigio et al., 2020, Nkrumah et al., 2018b, van der Ent et al., 2021).
قرأ أكثر
After concluding his doctoral studies, he spent one year at the Federal University of Rio de Janeiro (Brazil), carrying out postdoctoral research on phytomining. Then, he undertook a 3-year postdoctoral fellowship at the University of Aveiro also focused on phytomining and phytoremediation, until obtaining a permanent position in 2019.
قرأ أكثر
Rhenium (Re) is one of the scarcest and more broadly dispersed elements on Earth. Due to its paucity and high demand by the aerospace and petroleum industries, it is also one of the most valuable ...
قرأ أكثر
Following different accounts of rhenium accumulation, both on field [100,101] and laboratory trials [102], two rhenium phytomining experiments were carried out to date [14,103]. The first ...
قرأ أكثر
This chapter reviews the advances of phytomining since its inception in the 1990s, focusing on the results obtained to date, with gold, nickel, thallium, and rhenium. The exponential growth of low-grade mining ores and metal-polluted soils around the world during the last decades is expected to continue at a higher rate in the foreseeable future.
قرأ أكثر
DOI: 10.17014/ijog.v1i1.171New technology is needed to protect the safety and health of communities and the environment at ASGM locations in Indonesia. This technology must be simple, cheap, easy to operate, and financially rewarding. A proven option that should be promoted is phytoextraction, a farming activity that could develop …
قرأ أكثر
In your classroom. Inspire learners to imagine innovative chemistry careers with this two-fold problem that future chemists need to solve. The technological revolution relies on metals that are becoming increasingly more uneconomical to mine due to declining concentrations and the spoil from such operations has left a legacy of contamination.
قرأ أكثر
Phytomining is the bioharvesting of metals from hyperaccumulator plant species or high-biomass crops grown in soil with metal concentrations that are too low to extract using conventional processes (Sheoran et al., 2009; Bozhkov et al., 2012). ... Advantages of rhenium phytomining by lucerne and clover from ore dressing soils; …
قرأ أكثر
(rhenium) with phytomining. In addition, rhenium levels in alfalfa and clover were as high as 35.090 . and 46.586 mg/kg (dry weight), respectivel y. Eventually, 95% of rhenium-containi ng leachate ...
قرأ أكثر
36 instrumental to increase the economic and environmental viability of Re phytomining. 37 38 Keywords: phytomining; agromining; phytoextraction; hyperaccumulation; phytoremediation 39 Introduction40 41 Rhenium (Re) is one of the rarest (7 x 10-8 %) and most broadl scaWWered elemens on Earhs 42 crust (Naumov, 2007; Tagami and …
قرأ أكثر
Phytomining rhenium is an inexpensive, environmentally friendly green technology. may amp features_am&p master template new QX6.qxt 4/26/2012 12:12 PM Page 34.
قرأ أكثر
remediating the soil. A variation in phytoextraction is phytomining (PM). Phytomining is the process under which plants are used to extract ("mine") valuable inorganic elements from soil in a natural or in an induced manner for the specific purpose of financial gain after valorizing the produced biomass. The difference between PM and ...
قرأ أكثر
Yeast Saccharomyces cerevisiae biomass was applied for rhenium and accompanying elements (copper and molybdenum) removal from single- and multi-component systems (Re, Re-Mo, Re-Cu, and Re-Mo-Cu). Yeast biomass was characterized using X-ray diffraction, scanning electron microscopy, and Fourier transform infrared …
قرأ أكثر
The extraction of critical metals in a circular mining system begins with mineral processing (Fig. 2).Mineral processing involves liberating and concentrating economical metals and minerals from a mined resource using comminution (particle size reduction), classification (particle size screening), and separation technologies (e.g., …
قرأ أكثر
Rhenium is extracted from roasting fume and dust, leaching residue, and aqueous solution to produce a rhenium bearing solution. Subsequently, rhenium rich …
قرأ أكثر
This chapter reviews the advances of phytomining since its inception in the 1990s, focusing on the results obtained to date, with gold, nickel, thallium, and rhenium. Discover the world's research ...
قرأ أكثر