Adsorptive behavior of micro(nano)plastics through biochar: Co-existence, consequences, and challenges in contaminated ecosystems

Kumar, Rakesh; Verma, Anurag; Rakib, Refat Jahan; Gupta, Pankaj Kumar; Sharma, Prabhakar; Garg, Ankit; Girard, Pierre; Aminabhavi, Tejraj M.

doi:10.1016/j.scitotenv.2022.159097

Cited by 63 publications

(22 citation statements)

References 132 publications

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“…A significant model for wastewater treatment, particularly from industrial and municipal wastes, could be growing algae which captures excess nitrogen and phosphorus from the water and aid in sewage treatment, while the biochar produced from algae can be reused as a soil amendment to increase agricultural production (Roberts et al, 2015;Cole et al, 2017;Mona et al, 2021). Using relatively inexpensive, carbon-negative, and highly adsorbent biochar has been demonstrated to remove and immobilize organic pollutants and micro and nanoplastics from wastewater (Kumar et al, 2023). The honeycomb structure of biochar can help capture and immobilize the microplastics (diameter 10-22 μm, 95%) in the wastewater, a significant emerging pollutant (Wang et al, 2020).…”

Section: Biochar In Reducing Water Pollutionmentioning

confidence: 99%

“…The microplastic contained in a water medium could also be effectively adsorbed and removed by using the magnetic properties of biochar activated with different metals (Fe, Mg, Zn, etc. ), treating the wastewater effectively through a series of filtration methods (Singh et al, 2021;Wang et al, 2021;Kumar et al, 2023).…”

Section: Biochar In Reducing Water Pollutionmentioning

confidence: 99%

“…One of the important areas of biochar application moving forward could be the treatment of newly emerging highly hazardous wastes such as organic pollutants and microplastics, a critical global pollution challenge (Palansooriya et al, 2022;Kumar et al, 2023). With the extensive use of plastics in agricultural and urban settings, more microplastic residues contaminate the soil and aquatic environments; therefore, its remediation is critical to improving soil and water quality (Wang et al, 2020(Wang et al, , 2022Ye et al, 2020).…”

Section: Biochar and Emerging-hazardous Wastes Such As Organic Pollut...mentioning

confidence: 99%

“…Also, biochar produced from corncob with high pyrolysis temperature was reported to offer the important potential to adsorb polystyrene nanoplastics, achieved through pore filling, hydrophobic interactions, and hydrogen bonding (Abdoul Magid et al, 2021). Through adsorption, chemical bonding, and electrostatic attractions, biochar offers potential adsorption of micro and nanoplastics from aquatic ecosystems (Kumar et al, 2023). Another relevant approach for microplastic removal from aqueous solutions has been suggested to use the magnesium and zinc-modified magnetic biochar by utilization of magnetic and thermal degradation approaches (Wang et al, 2021).…”

Section: Biochar and Emerging-hazardous Wastes Such As Organic Pollut...mentioning

confidence: 99%

“…Enrichment of nitrogen with biochar helped to decrease the CO 2 and CH 4 gas emissions, promoting rice yield, fertilizer use efficiency, and conversion of Fe (III) to Fe(II) (Yin et al, 2021). Activation of biochar with different metals, such as Zn, Mg, Fe, etc., has been successfully elucidated to adsorb (magnetically and chemically) the microplastic contaminants from aquatic environments (Singh et al, 2021;Wang et al, 2021;Kumar et al, 2023).…”

Section: Modification Of Biochar For Specific Applicationsmentioning

confidence: 99%

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Advances and prospects of biochar in improving soil fertility, biochemical quality, and environmental applications

Nepal

Ahmad

Munsif

et al. 2023

Front. Environ. Sci.

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With the global food deficit increasing and rising climate change issues, there is a need to find green solutions to improve soil fertility and productivity while enhancing soil biochemical quality and reducing the ecological impact of agriculture. Biochar is a potentially cost-effective, carbonaceous resource with many agricultural and environmental applications. As a soil amendment, it improves soil physical and biochemical properties and increases soil fertility and productivity—particularly over the long-term—increasing soil aggregation, water retention, pH, and microbial activities, thus, improving overall soil quality, potentially helping to reduce chemical fertilizer needs over time. The extent of biochar’s impact on soil physiochemical properties varies depending on biochar source, type, size, inherent soil characteristics, cropping system, etc. Moreover, biochar has significant potential in soil and water remediation, especially through its unique adsorption and chemical properties capable to capture and immobilize pollutants such as metal(loid)s, organic pollutants, and hazardous emerging contaminants such as microplastics. Further, biochar has also emerged as a key strategic, cost-effective material to tackle global issues such as climate change mitigation, reducing the net greenhouse gas emission to minimize global warming potential. However, a knowledge gap remains as to understanding the long-term persistence of biochar on agroecosystem, optimal biochar application rate for the diversity of biochar-soil-crop-environmental conditions, interaction of biochar with inherent soil carbon stock, specific mechanisms of biochar’s effect on soil biotic properties, quantification of carbon sequestration, greenhouse gas emissions, synergy or potential antagonistic effects with other carbon sources such as compost, manure, residues, etc., its modification for environmental applications and associated environmental and human risks over long-term. Further research is needed to evaluate the long-term impacts of types and sizes of biochar on overall soil quality to recommend suitable application practices based on soil management and cropping system. Also, its environmental applications need to be finetuned for wider and target specific applications to tackle pressing environmental issues such as soil and water pollution.

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Section: Biochar In Reducing Water Pollutionmentioning

confidence: 99%

Section: Biochar In Reducing Water Pollutionmentioning

confidence: 99%

Section: Biochar and Emerging-hazardous Wastes Such As Organic Pollut...mentioning

confidence: 99%

Section: Biochar and Emerging-hazardous Wastes Such As Organic Pollut...mentioning

confidence: 99%

Section: Modification Of Biochar For Specific Applicationsmentioning

confidence: 99%

See 3 more Smart Citations

Advances and prospects of biochar in improving soil fertility, biochemical quality, and environmental applications

Nepal

Ahmad

Munsif

et al. 2023

Front. Environ. Sci.

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Fighting microplastics: The role of dietary fibers in protecting health

Wang,

Zhang

et al. 2024

Food Frontiers

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Microplastics (MPs) have emerged as a significant food‐related risk factor, posing potential threats to human health through dietary intake and the food chain. This review comprehensively analyses the impact of MPs as a novel food safety risk factor on human health (in particular on the gastrointestinal route). Furthermore, we explore the potential mechanisms by which dietary fibers (DFs) may alleviate the health risks associated with MPs. The impact of DFs on human health is intricately linked to factors such as their size, concentration, and composition. We characterize current knowledge and highlight gaps. Although DFs may be a potential strategy to reduce the impact of MPs on organism health, more in‐depth studies are needed to determine their practical effects and application prospects. In particular, research on MPs that actively reduce intake in vivo remains relatively limited and needs to receive more attention from the scientific community.

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Biochar alleviated the toxic effects of microplastics‐contaminated geocarposphere soil on peanut (Arachis hypogaea L.) pod development: roles of pod nutrient metabolism and geocarposphere microbial modulation

Yang,

Liang,

et al. 2023

J Sci Food Agric

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BACKGROUNDThe accumulation of microplastics in agricultural soil poses a threat to the sustainability of agriculture, impacting crop growth and soil health. Due to the geocarpy feature of peanut, geocarposphere soil environment is critical to pod development and its nutritional quality. While the effects of microplastics in the rhizosphere have been studied, their impact on peanut pod in the geocarposphere remains unknown. Biochar has emerged as a potential soil agent with the ability to remediate soil contamination. However, the mechanisms of biochar in mitigating the toxic effects of microplastics‐contaminated geocarposphere soil on peanut pod development remain largely unexplored.RESULTSWe evaluated the peanut pod performance and microbiome when facing microplastics contamination and biochar amendment in geocarposphere soil. The results showed that microplastics present in geocarposphere soil could directly enter the peanut pod, cause pod developmental disorder and exert adverse effects on nutritional quality. Aberrant expression of key genes associated with amino acid metabolism, lipid synthesis, and auxin and ethylene signaling pathways were the underlying molecular mechanisms of microplastics‐induced peanut pod developmental inhibition. However, these expression abnormalities could be reversed by biochar application. In addition, peanut geocarposphere microbiome results showed that biochar application could restore the diversity of microbial communities inhibited by microplastics contamination and promote the relative abundance of bacteria correlated with pathogen resistance and nitrogen cycle of geocarposphere soil, further promoting peanut pod development.CONCLUSIONThis study demonstrated that biochar application is an effective strategy to mitigate the toxic effects of microplastics‐contaminated geocarposphere soil on pod development and nutritional quality. © 2023 Society of Chemical Industry.

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Adsorptive behavior of micro(nano)plastics through biochar: Co-existence, consequences, and challenges in contaminated ecosystems

Cited by 63 publications

References 132 publications

Advances and prospects of biochar in improving soil fertility, biochemical quality, and environmental applications

Advances and prospects of biochar in improving soil fertility, biochemical quality, and environmental applications

Fighting microplastics: The role of dietary fibers in protecting health

Biochar alleviated the toxic effects of microplastics‐contaminated geocarposphere soil on peanut (Arachis hypogaea L.) pod development: roles of pod nutrient metabolism and geocarposphere microbial modulation

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