A review of green remediation strategies for heavy metal contaminated soil

Wang, Liuwei; Rinklebe, Jörg; Tack, Filip; Hou, Deyi

doi:10.1111/sum.12717

Cited by 149 publications

(61 citation statements)

References 210 publications

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“…Bioremediation, particularly biochar amended phytoremediation, is one of the most promising remediation strategies that is widely used to remediate toxic metals/metalloids in the soil ( Shukla A. et al, 2018 ; Wang et al, 2021 ). Biochar has many significant properties that make it a good remediation material for contaminated soils, including a large internal surface area, negative charge, and resistance to degradation.…”

Section: An Overview Of Plant-based Remediation Approaches For Toxic Metals/metalloidsmentioning

confidence: 99%

“…Biochar has many significant properties that make it a good remediation material for contaminated soils, including a large internal surface area, negative charge, and resistance to degradation. It is also the most important bioremediation strategy since it not only serves to remediate soil pollution and improve soil quality but is also a cost-effective product that decreases the global environmental challenge of solid waste management ( Shukla A. et al, 2018 ; Wang et al, 2021 ). A recent study shows that the addition of 10% of biochar generated from rice straw to Cu-contaminated soil reduced Cu availability by 96% ( Rehman et al, 2019 ).…”

Section: An Overview Of Plant-based Remediation Approaches For Toxic Metals/metalloidsmentioning

confidence: 99%

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Advances in “Omics” Approaches for Improving Toxic Metals/Metalloids Tolerance in Plants

et al. 2022

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Food safety has emerged as a high-urgency matter for sustainable agricultural production. Toxic metal contamination of soil and water significantly affects agricultural productivity, which is further aggravated by extreme anthropogenic activities and modern agricultural practices, leaving food safety and human health at risk. In addition to reducing crop production, increased metals/metalloids toxicity also disturbs plants’ demand and supply equilibrium. Counterbalancing toxic metals/metalloids toxicity demands a better understanding of the complex mechanisms at physiological, biochemical, molecular, cellular, and plant level that may result in increased crop productivity. Consequently, plants have established different internal defense mechanisms to cope with the adverse effects of toxic metals/metalloids. Nevertheless, these internal defense mechanisms are not adequate to overwhelm the metals/metalloids toxicity. Plants produce several secondary messengers to trigger cell signaling, activating the numerous transcriptional responses correlated with plant defense. Therefore, the recent advances in omics approaches such as genomics, transcriptomics, proteomics, metabolomics, ionomics, miRNAomics, and phenomics have enabled the characterization of molecular regulators associated with toxic metal tolerance, which can be deployed for developing toxic metal tolerant plants. This review highlights various response strategies adopted by plants to tolerate toxic metals/metalloids toxicity, including physiological, biochemical, and molecular responses. A seven-(omics)-based design is summarized with scientific clues to reveal the stress-responsive genes, proteins, metabolites, miRNAs, trace elements, stress-inducible phenotypes, and metabolic pathways that could potentially help plants to cope up with metals/metalloids toxicity in the face of fluctuating environmental conditions. Finally, some bottlenecks and future directions have also been highlighted, which could enable sustainable agricultural production.

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Section: An Overview Of Plant-based Remediation Approaches For Toxic Metals/metalloidsmentioning

confidence: 99%

Section: An Overview Of Plant-based Remediation Approaches For Toxic Metals/metalloidsmentioning

confidence: 99%

Advances in “Omics” Approaches for Improving Toxic Metals/Metalloids Tolerance in Plants

et al. 2022

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“…They also represent a valuable long-term economic opportunity, with several benefits for the environment, economy, and society [28,29]. However, NBS such as phytoremediation or bioremediation in contaminated sites do not always support long-term environmental sustainability [30]. The implementation of a remediation project, even if based on natural green solutions, cannot be considered the best sustainable solution without any post-remediation activities being comprehensively evaluated.…”

Section: Green and Sustainable Remediationmentioning

confidence: 99%

Soil Remediation: Towards a Resilient and Adaptive Approach to Deal with the Ever-Changing Environmental Challenges

Grifoni¹,

Franchi

Fusini

et al. 2022

Environments

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Pollution from numerous contaminants due to many anthropogenic activities affects soils quality. Industrialized countries have many contaminated sites; their remediation is a priority in environmental legislation. The aim of this overview is to consider the evolution of soil remediation from consolidated invasive technologies to environmentally friendly green strategies. The selection of technology is no longer exclusively based on eliminating the source of pollution but aims at remediation, which includes the recovery of soil quality. “Green remediation” appears to be the key to addressing the issue of remediation of contaminated sites as it focuses on environmental quality, including the preservation of the environment. Further developments in green remediation reflect the aim of promoting clean-up strategies that also address the effects of climate change. Sustainable and resilient remediation faces the environmental challenge of achieving targets while reducing the environmental damage caused by clean-up interventions and must involve an awareness that social systems and environmental systems are closely connected.

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“…Although LDHs are often regarded as novel, artificially synthesized lamellar materials, they can be classified as the anionic clays (Fan et al, 2014). For both cationic and anionic clay minerals, the major mechanisms are quite similar, including surface complexation/precipitation with hydroxyl, and the ion exchange with the interlayer cations/anions (Mishra et al, 2018; Wang, Rinklebe, et al, 2021). Therefore, clay minerals can be used for metal adsorption/immobilization and fertility improvement (because of reversible adsorption of nutrients).…”

Section: A Practical Guide To Selection Fabrication and Application Of Biochar Compositesmentioning

confidence: 99%

“…Application of certain types of biochar composites directly improves the physical structure and the chemical fertility of soil, leading to enhanced crop yield. On the other land, remediating the soils in a ‘green and sustainable’ manner also requires future development of novel materials (Hou, 2020; Wang et al, 2021). Engineered biochar composites loaded with key immobilization/degradation components assure the long‐term remediation of contaminated soil with low life cycle impact.…”

Section: Introductionmentioning

confidence: 99%

Biochar composites: Emerging trends, field successes and sustainability implications

Wang

Tsang

et al. 2021

Soil Use and Management

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Engineered biochars are promising candidates in a wide range of environmental applications, including soil fertility improvement, contaminant immobilization, wastewater treatment and in situ carbon sequestration. This review provides a systematic classification of these novel biochar composites and identifies the promising future trends in composite research and application. It is proposed that metals, minerals, layered double hydroxides, carbonaceous nanomaterials and microorganisms enhance the performances of biochars via distinct mechanisms. In this review, four novel trends are identified and assessed critically. Firstly, facile synthesis methods, in particular ball milling and co‐pyrolysis, have emerged as popular composite fabrication strategies that are suitable for large‐scale applications. Secondly, biochar modification with green materials, such as natural clay minerals and microorganisms, align well with the on‐going green and sustainable remediation (GSR) movement. Furthermore, new applications in soil health improvement and climate change mitigation support the realization of United Nation's Sustainable Development Goals (SDGs). Finally, the importance of field studies is getting more attention, since evidence of field success is critically needed before large‐scale applications.

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A review of green remediation strategies for heavy metal contaminated soil

Cited by 149 publications

References 210 publications

Advances in “Omics” Approaches for Improving Toxic Metals/Metalloids Tolerance in Plants

Advances in “Omics” Approaches for Improving Toxic Metals/Metalloids Tolerance in Plants

Soil Remediation: Towards a Resilient and Adaptive Approach to Deal with the Ever-Changing Environmental Challenges

Biochar composites: Emerging trends, field successes and sustainability implications

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