The Long Road to Developing Agromining/Phytomining

Chaney, Rufus L.; Baker, A. J. M.; Morel, Jean-Louis

doi:10.1007/978-3-030-58904-2_1

Cited by 19 publications

(9 citation statements)

References 121 publications

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“…In addition, pyrometallurgy is widely used for metals that are leached, then recovered, from the ash of incinerated biomass. Additionally, hydrometallurgy, a method using compressed hot water, involves the leaching of metals directly from the substrate [88].…”

Section: Thermochemical Methodsmentioning

confidence: 99%

Moving towards Biofuels and High-Value Products through Phytoremediation and Biocatalytic Processes

Ionata,

Caputo,

Mandrich

et al. 2024

Catalysts

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Phytoremediation is an eco-friendly technology that utilizes plants and plant–microbe interactions to remove a wide spectrum of organic and inorganic pollutants from contaminated environments such as soils, waters and sediments. This low-impact, environmentally sustainable and cost-effective methodology represents a valuable alternative to expensive physical and chemical approaches, characterized by secondary pollution risks, and is gaining increasing attention from researchers and popular acceptance. In this review, the main mechanisms underlying the decontamination activity of plants have been clarified, highlighting the environmental remediation in fertility and soil health. Studies have illustrated the high potential of phytoremediation coupled with green and sustainable biocatalytic processes, which together represent a non-polluting alternative for the conversion of plant biomass into renewable resources. The convenience of this technology also lies in the valorization of the bio-wastes towards biofuels, energy purposes and value-added products, contributing to an effective and sustainable circular approach to phyto-management. The strategy proposed in this work allows, with the use of totally green technologies, the recovery and valorization of contaminated soil and, at the same time, the production of bioenergy with high efficiency, within the framework of international programs for the development of the circular economy and the reduction of greenhouse carbon emissions.

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Section: Thermochemical Methodsmentioning

confidence: 99%

Moving towards Biofuels and High-Value Products through Phytoremediation and Biocatalytic Processes

Ionata,

Caputo,

Mandrich

et al. 2024

Catalysts

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“…These elements can be removed by harvesting, after which the plant material is available to be disposed of in various ways, or the material is ashed to recover metals and generate energy (Corzo Remigio et al 2020). The recovery of metals from the biomass of hyperaccumulator species is one of the most important steps in the agromining process, which involves growing plants specifically to extract metals from the soil in an environmentally-sound manner and provide an alternative to conventional mining in places where it is not cost-effective, whilst also recovering a significant amount of energy (Chaney et al 2021). Agromining practices have already been used with great success in the Balkans in recent years, at sites in Albania and Greece (Bani et al 2015a(Bani et al , b, 2021.…”

Section: The Potential Application Of Hyperaccumulator Speciesmentioning

confidence: 99%

Hyperaccumulator plant discoveries in the Balkans: Accumulation, distribution, and practical applications

et al. 2022

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Hyperaccumulator plants are able to tolerate extremely high concentrations of metals/metalloids in the soil in which they grow and to accumulate high concentrations in their shoots. To date, a total of 31 hyperaccumulator plant species have been identified in the Balkans, the centre of diversity and speciation in the European flora which is particularly rich in ultramafic areas. A further 8 species have yet to be confirmed through additional studies. Most of the 31 hyperaccumulator taxa (13 taxa or 41.9%) are species of the genus Odontarrhena, all hyperaccumulating Ni, but concentrations of this element above the hyperaccumulation threshold were also found in the genera Bornmuellera and Noccaea (all Brassicaceae), Orobanche (Orobanchaceae), Centaurea (Asteraceae) and Viola (Violaceae). The existence of hyperaccumulators of Tl and Zn is of particular interest because very few species worldwide hyperaccumulate these elements. Multiple metal hyperaccumulation was found in Noccaea kovatsii, as the hyperaccumulation of Zn was found in this species in addition to Ni, the primary accumulated element. Metal hyperaccumulation is discussed in terms of phylogenetic relationships and species distributions, with special attention to their systematics, the detection and recognition of new hyperaccumulating species and the possibilities for their future practical applications in phytotechnologies.

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“…Likewise, they can simultaneously promote the biodegradation of soil organic contaminants. Economic revenues can also be obtained through phytomining, a phytotechnology focused on the recovery of valuable TE (e.g., Co, Ni, and Re) from the TErich biomass of hyperaccumulators (also called bio-ores) (Remigio et al, 2020;Chaney et al, 2018). TE-rich phytomass can be pyrolysed/calcinated and the resulting biochar and/or ashes used as ecocatalysts in biosourced fine chemistry (Clavé et al, 2016;Quintela-Sabarís et al, 2017;Mench et al, 2018;Xue et al, 2018;Bihanic et al, 2020;Kolbas et al, 2020).…”

Section: Phytomanagement Benefits and Constraints-brief Overviewmentioning

confidence: 99%

Phytomanagement of Metal(loid)-Contaminated Soils: Options, Efficiency and Value

Moreira

Pereira

Mench

et al. 2021

Front. Environ. Sci.

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The growing loss of soil functionality due to contamination by metal(loid)s, alone or in combination with organic pollutants, is a global environmental issue that entails major risks to ecosystems and human health. Consequently, the management and restructuring of large metal(loid)-polluted areas through sustainable nature-based solutions is currently a priority in research programs and legislation worldwide. Over the last few years, phytomanagement has emerged as a promising phytotechnology, focused on the use of plants and associated microorganisms, together with ad hoc site management practices, for an economically viable and ecologically sustainable recovery of contaminated sites. It promotes simultaneously the recovery of soil ecological functions and the decrease of pollutant linkages, while providing economic revenues, e.g. by producing non-food crops for biomass-processing technologies (biofuel and bioenergy sector, ecomaterials, biosourced-chemistry, etc.), thus contributing to the international demand for sustainable and renewable sources of energy and raw materials for the bioeconomy. Potential environmental benefits also include the provision of valuable ecosystem services such as water drainage management, soil erosion deterrence, C sequestration, regulation of nutrient cycles, xenobiotic biodegradation, and metal(loid) stabilization. Phytomanagement relies on the proper selection of (i) plants and (ii) microbial inoculants with the capacity to behave as powerful plant allies, e.g., PGPB: plant growth-promoting bacteria and AMF: arbuscular mycorrhizal fungi. This review gives an up-to-date overview of the main annual, perennial, and woody crops, as well as the most adequate cropping systems, presently used to phytomanage metal(loid)-contaminated soils, and the relevant products and ecosystems services provided by the various phytomanagement options. Suitable bioaugmentation practices with PGPB and AMF are also discussed. Furthermore, we identify the potential interest of phytomanagement for stakeholders and end-users and highlight future opportunities boosted by an effective engagement between environmental protection and economic development. We conclude by presenting the legal and regulatory framework of soil remediation and by discussing prospects for phytotechnologies applications in the future.

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The Long Road to Developing Agromining/Phytomining

Cited by 19 publications

References 121 publications

Moving towards Biofuels and High-Value Products through Phytoremediation and Biocatalytic Processes

Moving towards Biofuels and High-Value Products through Phytoremediation and Biocatalytic Processes

Hyperaccumulator plant discoveries in the Balkans: Accumulation, distribution, and practical applications

Phytomanagement of Metal(loid)-Contaminated Soils: Options, Efficiency and Value

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