Microplastic residues in wetland ecosystems: Do they truly threaten the plant-microbe-soil system?

Environment International, Journal Year: 2021, Volume and Issue: 156, P. 106708 - 106708

Published: June 18, 2021

The ecological stress of microplastic contamination to ecosystem functioning and biota raises concerns worldwide, but the impacts microplastics on wetland ecosystems (e.g., plants, microbes, soil) have not been fully elucidated. In this study, we used a controlled pot experiment determine effects different types (PS, PVC, PP PE) growth performance soil chemical properties, enzyme systems microbial communities. Microplastics can change germination strategies seeds, there was also reduction in fresh weight plant height Bacopa sp. Chlorophyll b synthesis significantly reduced mixed treatments compared with controls. Microplastic addition caused higher concentrations reactive oxygen species which led increased lipid peroxidation activation antioxidant defence system. organic matter, potassium, total nitrogen phosphorus changed presence four forms microplastics, while pH substantially affected. had negative effect activity, for example, PS MP particles decreased sucrase activities after 40 days. results study showed that richness diversity bacterial. When exposed polystyrene algae surface. Thus, alters structure communities, resulting enrichment some special taxa involved cycling. These indicate both direct indirect plastic residues plant-microbe-soil system, has implications potential further functioning.

Language: Английский

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Comprehensive metagenomic and enzyme activity analysis reveals the negatively influential and potentially toxic mechanism of polystyrene nanoparticles on nitrogen transformation in constructed wetlands

Water Research, Journal Year: 2021, Volume and Issue: 202, P. 117420 - 117420

Published: July 9, 2021

Language: Английский

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Removal of nanoplastics in water treatment processes: A review

The Science of The Total Environment, Journal Year: 2022, Volume and Issue: 845, P. 157168 - 157168

Published: July 8, 2022

Language: Английский

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The fate of microplastics in wastewater treatment plants: An overview of source and remediation technologies

Environmental Technology & Innovation, Journal Year: 2022, Volume and Issue: 28, P. 102815 - 102815

Published: July 16, 2022

Microplastics (MPs) in everyday consumer products have paved the way for high MPs concentrations wastewater. Wastewater treatment plants (WWTP)s are significant focal points MP pollution, as millions of particles with varying characteristics enter WWTPs through sewage systems urban areas. Although units not primarily designed to target specifically, researchers reported a large amount microplastic removal from various WWTPs. The scientific community has remarkably studied conventional and advanced methods remediate nanoplastics (NPs) This review aims provide comprehensive knowledge about source NPs wastewater, their composition, toxic effects, remediation comprise several physical, chemical, biological processes broadly categorized into three key stages: primary, secondary, tertiary. interaction these also been reviewed. Literature indicates that can separate more than 90% However, despite low treated effluent, discharge volumes contribute MPs/NPs environment. Also, separated re-enter environment sludge applied on land. paper discusses application wastewater technologies efficacies remediating microplastics. Finally, highlights research gaps where additional exploration is required, providing new perspective developing policies controlling pollution.

Language: Английский

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Polyethylene microplastics interfere with the nutrient cycle in water-plant-sediment systems

Water Research, Journal Year: 2022, Volume and Issue: 214, P. 118191 - 118191

Published: Feb. 14, 2022

Language: Английский

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Distribution, biological effects and biofilms of microplastics in freshwater systems - A review

Chemosphere, Journal Year: 2022, Volume and Issue: 299, P. 134370 - 134370

Published: March 19, 2022

Language: Английский

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Assessing the Mass Concentration of Microplastics and Nanoplastics in Wastewater Treatment Plants by Pyrolysis Gas Chromatography–Mass Spectrometry

Environmental Science & Technology, Journal Year: 2023, Volume and Issue: 57(8), P. 3114 - 3123

Published: Feb. 14, 2023

The level of microplastics (MPs) in wastewater treatment plants (WWTPs) has been well evaluated by the particle number, while mass concentration MPs and especially nanoplastics (NPs) remains unclear. In this study, pyrolysis gas chromatography–mass spectrometry was used to determine concentrations NPs with different size ranges (0.01–1, 1–50, 50–1000 μm) across whole schemes two WWTPs. total decreased from 26.23 11.28 μg/L influent 1.75 0.71 effluent, removal rates 93.3 93.7% A B, respectively. proportions (0.01–1 were 12.0–17.9 5.6–19.5% respectively, efficiency lower than that (>1 μm). Based on annual effluent discharge, it is estimated about 0.321 0.052 tons released into river each year. Overall, study investigated a wide range 0.01–1000 μm wastewater, which provided valuable information regarding pollution distribution characteristics MPs, NPs,

Language: Английский

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Metagenomic analysis reveals the responses of microbial communities and nitrogen metabolic pathways to polystyrene micro(nano)plastics in activated sludge systems

Water Research, Journal Year: 2023, Volume and Issue: 241, P. 120161 - 120161

Published: June 1, 2023

Language: Английский

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Micro(nano)plastic size and concentration co-differentiate nitrogen transformation, microbiota dynamics, and assembly patterns in constructed wetlands

Water Research, Journal Year: 2022, Volume and Issue: 220, P. 118636 - 118636

Published: May 19, 2022

Language: Английский

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Structural, metabolic, and functional characteristics of soil microbial communities in response to benzo[a]pyrene stress

Journal of Hazardous Materials, Journal Year: 2022, Volume and Issue: 431, P. 128632 - 128632

Published: March 5, 2022

Language: Английский

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