Phytoremediation: A wonderful cost-effective tool

Yadav, Ram Naresh; Singh, Siril; Kumar, Abhishek; Singh, Anand Narain

doi:10.1016/b978-0-12-822933-0.00008-5

Cited by 16 publications

(4 citation statements)

References 140 publications

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“…Among the known technologies developed in recent decades, such as physicochemical and thermal processes, phytoremediation has emerged as a cost-effective remediation technology [ 24 , 25 ]. The main mechanisms of phytoremediation include phytoextraction and phytostabilization, both of which were assessed in the present study; the former has exhibited high efficiency and comprises a reduction in the concentrations of pollutants in the soil through their uptake by harvestable parts of the plant, while phytostabilization restricts the pollutants to the area close to the roots, halting their movement [ 23 , 26 , 27 , 28 ]. Plants that accumulate high concentrations of pollutants are called hyperaccumulators.…”

Section: Introductionmentioning

confidence: 99%

An Assessment of the Metal Removal Capability of Endemic Chilean Species

Lazo

Urtubia

et al. 2022

IJERPH

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In Chile, there are several abandoned mine tailing impoundments near population centers that need to be remediated. In this study, the ability of Oxalis gigantea, Cistanthe grandiflora, and Puya berteroniana to remove Zn, Ni, and Cr from mine tailings was evaluated. The plants’ removal efficiency, bioconcentration, and translocation factors regarding these metals were determined to assess the ability of certain endemic species from Northern and Central Chile to extract or stabilize metals. After a period of seven months, the chemical analysis of plants and tailings, together with the statistical treatment of data, indicated the inability of all the species to translocate Ni, Cr, or Zn with a translocation factor lower than one. The results showed the stabilizing character of Oxalis gigantea, Puya berteroniana, and Cistanthe grandiflora for Zn, with a bioconcentration factor close to 1.2 in all cases, and the same ability of the latter two species for Cr, with a bioconcentration factor of 1.5 in the case of Cistanthe grandiflora and 1.7 for Puya berteroniana. Finally, a removal efficiency of 9.3% was obtained with Cistanthe grandiflora for Cr and 15% for Ni; values lower than 6.4% were obtained for Zn in all cases. Improvements in the process should be sought to enhance the performance of these species for the accumulation of the target metals.

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Section: Introductionmentioning

confidence: 99%

An Assessment of the Metal Removal Capability of Endemic Chilean Species

Lazo

Urtubia

et al. 2022

IJERPH

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“…Examples of hyperaccumulators and recommended phytoremediation methods are shown in Table 1. Thlaspi caerulescens Cd phytoextraction [93] Zn rhizofiltration [93,102] Thlaspi goesingense Ni phytoextraction [92,93] Tagetes minuta As, Pb phytoextraction [141,142] A ratio also used to assess the distribution of TEs within the shoots and roots of plants is the root/shoot (R/S) ratio. This ratio indicates the concentration of TEs that is accumulated in the root to the concentration in the plant shoot.…”

Section: The Essence Of the Process Of Phytoremediationmentioning

confidence: 99%

Phytoremediation as an Effective Remedy for Removing Trace Elements from Ecosystems

Mocek-Płóciniak

Mencel

Zakrzewski³

et al. 2023

Plants

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The pollution of soil by trace elements is a global problem. Conventional methods of soil remediation are often inapplicable, so it is necessary to search intensively for innovative and environment-friendly techniques for cleaning up ecosystems, such as phytoremediation. Basic research methods, their strengths and weaknesses, and the effects of microorganisms on metallophytes and plant endophytes resistant to trace elements (TEs) were summarised and described in this manuscript. Prospectively, bio-combined phytoremediation with microorganisms appears to be an ideal, economically viable and environmentally sound solution. The novelty of the work is the description of the potential of “green roofs” to contribute to the capture and accumulation of many metal-bearing and suspended dust and other toxic compounds resulting from anthropopressure. Attention was drawn to the great potential of using phytoremediation on less contaminated soils located along traffic routes and urban parks and green spaces. It also focused on the supportive treatments for phytoremediation using genetic engineering, sorbents, phytohormones, microbiota, microalgae or nanoparticles and highlighted the important role of energy crops in phytoremediation. Perceptions of phytoremediation on different continents are also presented, and new international perspectives are presented. Further development of phytoremediation requires much more funding and increased interdisciplinary research in this direction.

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“…Phytoremediation strategies utilizing such plants surpass traditional technologies and the most significant advantage of phytoremediation over traditional technologies is their lower energy costs and eco-friendly nature [ 123 ]. PTEs can change from being highly toxic to being easily volatilized, more water soluble (allowing for leaching removal), less water soluble (allowing for precipitation and easy removal from the environment), or less bioavailable due to a change in their oxidation state [ 44 ].…”

Section: Eco-technological/green Approachmentioning

confidence: 99%

Phytoremediation of Potentially Toxic Elements: Role, Status and Concerns

Wani

Ahmad

Asgher

et al. 2023

Plants

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Environmental contamination with a myriad of potentially toxic elements (PTEs) is triggered by various natural and anthropogenic activities. However, the industrial revolution has increased the intensity of these hazardous elements and their concentration in the environment, which, in turn, could provoke potential ecological risks. Additionally, most PTEs pose a considerable nuisance to human beings and affect soil, aquatic organisms, and even nematodes and microbes. This comprehensive review aims to: (i) introduce potentially toxic elements; (ii) overview the major sources of PTEs in the major environmental compartments; (iii) briefly highlight the major impacts of PTEs on humans, plants, aquatic life, and the health of soil; (iv) appraise the major methods for tackling PTE-caused pollution; (v) discuss the concept and applications of the major eco-technological/green approaches (comprising phytoextraction, rhizofiltration, phytostabilization, phytovolatilization, and phytorestoration); (vi) highlight the role of microbes in phytoremediation under PTE stress; and (vii) enlighten the major role of genetic engineering in advancing the phytoremediation of varied PTEs. Overall, appropriate strategies must be developed in order to stop gene flow into wild species, and biosafety issues must be properly addressed. Additionally, consistent efforts should be undertaken to tackle the major issues (e.g., risk estimation, understanding, acceptance and feasibility) in order to guarantee the successful implementation of phytoremediation programs, raise awareness of this green technology among laymen, and to strengthen networking among scientists, stakeholders, industrialists, governments and non-government organizations.

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Phytoremediation: A wonderful cost-effective tool

Cited by 16 publications

References 140 publications

An Assessment of the Metal Removal Capability of Endemic Chilean Species

An Assessment of the Metal Removal Capability of Endemic Chilean Species

Phytoremediation as an Effective Remedy for Removing Trace Elements from Ecosystems

Phytoremediation of Potentially Toxic Elements: Role, Status and Concerns

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