Enhanced phytoremediation strategy for sustainable management of heavy metals and radionuclides

Singh, B. S. Manisha; Singh, Dipanjali; Dhal, Nabin Kumar

doi:10.1016/j.cscee.2021.100176

Cited by 37 publications

(18 citation statements)

References 43 publications

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“…Phytostabilisation involves the immobilising of contaminants by conversion to less mobile oxidation states or by adsorption to root material [11], and rhizofiltration involves the removal of contaminants from waters by root processes. Phytoextraction is the process of contaminant uptake and subsequent translocation to harvestable plant fractions [12]. Scientists consider phytoextraction a subprocess of phytoremediation in which plants remove dangerous elements from soil or water, most usually heavy metals [7,13,14].…”

Section: Introductionmentioning

confidence: 99%

RETRACTED: Phytoremediation of Heavy-Metals-Contaminated Soils: A Short-Term Trial Involving Two Willow Species from Gloucester WillowBank in the UK

Lamine

Saunders

2022

Minerals

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Phytoremediation, as a bioremediation process in which plants are used to remove contaminants from an environment, has proved to be a practical and low-cost strategy for recovering mining-affected areas. This study aims to assess the potential for use in phytoremediation of two willow species, Salix viminalis and Salix dasyclados, by testing their potential for cleaning-up a range of soils with differing heavy metal concentrations: Pb (111, 141, 192 and 249 mg /kg), Zn (778.6, 1482, 2734 and 4411 mg/kg) and Cd (3.00, 5.03, 9.14 and 16.07 mg/kg). The extracted metals were preferentially translocated to the leaves with considerably higher concentrations and relative BAFs in the case of S. viminalis. The highest recorded Zn concentration of over 0.5% was found in the leaves of S. viminalis growing in soil 4. However, under the conditions of the experiments, S. dasyclados showed greater potential for use in phytoremediation, especially if coupled with use of biomass for energy production. An assessment of the suitability of willow species in this role, with regard to wider aspects involved, such as use of resultant biomass and/or waste management, revealed good potential. Willows are fast growing, grow vigorously from coppiced stumps and have extensive root systems. Therefore, their use in bioenergy production through pyrolysis or combustion, coupled with flue gas screening, is strongly advised.

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Section: Introductionmentioning

confidence: 99%

RETRACTED: Phytoremediation of Heavy-Metals-Contaminated Soils: A Short-Term Trial Involving Two Willow Species from Gloucester WillowBank in the UK

Lamine

Saunders

2022

Minerals

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“…Whenever plants are facing abiotic stress like salinity, drought, heavy metal toxicity etc., chloroplast produces high amount of reactive oxygen species (ROS) that often attacked the proteins, causes changes in protein structure and ultimately jeopardize their functions [41]. Plants encounter oxidative stress by utilizing its antioxidant defense machinery which in turn enables them to keep cellular homeostasis for proper functioning.…”

Section: Discussionmentioning

confidence: 99%

Industrial Wastewater Irrigation Increased Higher Heavy Metals uptake and Expansins, Metacaspases, Cystatin Genes Expression in Parthenium and Maize

Penzy

Muhammad

Shahzad

et al. 2023

Preprint

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Industrial wastewater irrigation of agriculture crops could cause a lot of environmental and health problems in developing countries due to heavy metals deposition in agriculture soils as well as edible plants consumption by human beings. Therefore, this study was conducted to find out heavy metals’ concentration in industrial wastewater and soil irrigated with that wastewater. In addition, the impact of industrial wastewater irrigation on Parthenium hysterophorus and Zea mays genes involved in growth improvement and inhibition of selected plants. For this purpose, plant samples from agriculture fields irrigated with wastewater from Hattar Industrial Estate (HIE) of Haripur, Pakistan and control plants from non-contaminated soil irrigated with tape water were collected after fifteen and forty-five days of germination. Heavy metals concentration in the collected plant samples, wastewater and soil were determined and results revealed that the study area was predominantly contaminated with Cr, Pb, Ni, Cu, Co, Zn and Cd concentrations of 38.98, 21.14, 46.01, 155.73, 12.50, 68.50 and Cd 7.01 mg/kg, respectively. The concentrations of these heavy metal have surpassed permissible limit of these metals in normal agriculture soil. Expansins and cystatin (plant growth enhancers), metacaspases (plant growth inhibitor) genes expression were studied through reverse transcription polymerase chain reaction and results showed that the expression of these genes was higher in samples collected from wastewater-irrigated soils as compared to control. More expression of these genes was observed in 45 days old samples as compared to 15 days old samples and control. Taken together, this study suggests the use of Parthenium and maize for phytoremediation, however, they should not be used for eating purposes if irrigated with industrial wastewater.

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“…Each of these processes has advantages and limitations, and the best approach depends on the specific situation. For example, phytoextraction may be effective for removing high concentrations of contaminants from the soil, while phytostabilization may be more appropriate for lower concentrations of contaminants or for preventing their spread to other areas [ 48 ].…”

Section: Heavy Metal Removal From Contaminated Soil By Phytoremediationmentioning

confidence: 99%

“…However, it is essential to note that using some of these methods, such as chelating agents and genetic engineering, may negatively impact the environment and human health if not used properly. It is, therefore, necessary to carefully evaluate and monitor these methods’ effectiveness and potential risks before their widespread application in phytoremediation [ 48 ].…”

Section: Advancements In Research To Address the Problems And Challengesmentioning

confidence: 99%

Clean-Up of Heavy Metals from Contaminated Soil by Phytoremediation: A Multidisciplinary and Eco-Friendly Approach

Priya

Muruganandam

Ali

et al. 2023

Toxics

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Pollution from heavy metals is one of the significant environmental concerns facing the world today. Human activities, such as mining, farming, and manufacturing plant operations, can allow them access to the environment. Heavy metals polluting soil can harm crops, change the food chain, and endanger human health. Thus, the overarching goal for humans and the environment should be the avoidance of soil contamination by heavy metals. Heavy metals persistently present in the soil can be absorbed by plant tissues, enter the biosphere, and accumulate in the trophic levels of the food chain. The removal of heavy metals from contaminated soil can be accomplished using various physical, synthetic, and natural remediation techniques (both in situ and ex situ). The most controllable (affordable and eco-friendly) method among these is phytoremediation. The removal of heavy metal defilements can be accomplished using phytoremediation techniques, including phytoextraction, phytovolatilization, phytostabilization, and phytofiltration. The bioavailability of heavy metals in soil and the biomass of plants are the two main factors affecting how effectively phytoremediation works. The focus in phytoremediation and phytomining is on new metal hyperaccumulators with high efficiency. Subsequently, this study comprehensively examines different frameworks and biotechnological techniques available for eliminating heavy metals according to environmental guidelines, underscoring the difficulties and limitations of phytoremediation and its potential application in the clean-up of other harmful pollutants. Additionally, we share in-depth experience of safe removing the plants used in phytoremediation—a factor frequently overlooked when choosing plants to remove heavy metals in contaminated conditions.

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Enhanced phytoremediation strategy for sustainable management of heavy metals and radionuclides

Cited by 37 publications

References 43 publications

RETRACTED: Phytoremediation of Heavy-Metals-Contaminated Soils: A Short-Term Trial Involving Two Willow Species from Gloucester WillowBank in the UK

RETRACTED: Phytoremediation of Heavy-Metals-Contaminated Soils: A Short-Term Trial Involving Two Willow Species from Gloucester WillowBank in the UK

Industrial Wastewater Irrigation Increased Higher Heavy Metals uptake and Expansins, Metacaspases, Cystatin Genes Expression in Parthenium and Maize

Clean-Up of Heavy Metals from Contaminated Soil by Phytoremediation: A Multidisciplinary and Eco-Friendly Approach

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