Mechanical, chemical, and bio-recycling of biodegradable plastics: A review

The Science of The Total Environment, Journal Year: 2023, Volume and Issue: 882, P. 163446 - 163446

Published: April 18, 2023

Language: Английский

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Are biodegradable mulch films a sustainable solution to microplastic mulch film pollution? A biogeochemical perspective

Journal of Hazardous Materials, Journal Year: 2023, Volume and Issue: 459, P. 132024 - 132024

Published: July 10, 2023

Language: Английский

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Response of soybean and maize roots and soil enzyme activities to biodegradable microplastics contaminated soil

Ecotoxicology and Environmental Safety, Journal Year: 2023, Volume and Issue: 262, P. 115129 - 115129

Published: June 12, 2023

Although biodegradable plastic film is a promising alternative product for reducing polyethylene pollution in agricultural soils, the effects of its residues on plant growth and soil properties remain unclear. In this study, we conducted an experiment to investigate root enzyme activities Poly (butylene adipate-co-terephthalate) microplastics (PBAT-MPs) contaminated (0 % (CK), 0.1 %, 0.2 0.5 1 dry weight) with soybean (Glycine max (Linn.) Merr.) maize (Zea mays L.). The results show that PBAT-MP accumulation negatively affects growth, alter activities, which may then constrain C/N cycling potential yields. For soybean, total length, surface area biomass decreased by 34 %- 58 54 25 40 at harvesting stage compared CK, respectively. negative PBAT-MPs roots were greater than roots. 37 71 33 24 64 tasseling stage, respectively (p < 0.05). Furthermore, statistical analysis data indicates inhibition was mediated significantly different impacts addition C-enzyme (β-xylosidase, cellobiohydrolase, β-glucosidase) N-enzyme (leucine-aminopeptidase, N-acetyl-β-glucosaminidase, alanine aminotransferase) rhizosphere non-rhizosphere soil, possibly due interactions plant-specific exudates microbial communities. These findings risks posed plant-soil system, suggest should be applied caution.

Language: Английский

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Understanding the Impact of Biodegradable Microplastics on Living Organisms Entering the Food Chain: A Review

Polymers, Journal Year: 2023, Volume and Issue: 15(18), P. 3680 - 3680

Published: Sept. 6, 2023

Microplastics (MPs) pollution has emerged as one of the world’s most serious environmental issues, with harmful consequences for ecosystems and human health. One proposed solution to their accumulation in environment is replacement nondegradable plastics biodegradable ones. However, due lack true biodegradability some ecosystems, they also give rise microplastics (BioMPs) that negatively impact different living organisms. This review summarizes current literature on BioMPs organisms—higher plants fish—relevant food chain. Concerning higher plants, adverse effects seed germination, plant biomass growth, penetration nutrients through roots, oxidative stress, changes soil properties, all leading reduced agricultural yield, have been critically discussed. fish, it are more likely be ingested than nonbiodegradable ones accumulate animal’s body, impaired skeletal development, behavioral changes. Therefore, based reviewed pioneering literature, seem a new threat health rather an effective counteract MP pollution, even if knowledge gaps this field highlight need additional rigorous investigations understand potential risks associated BioMPs.

Language: Английский

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Biodegradable PBAT microplastics adversely affect pakchoi (Brassica chinensis L.) growth and the rhizosphere ecology: Focusing on rhizosphere microbial community composition, element metabolic potential, and root exudates

The Science of The Total Environment, Journal Year: 2023, Volume and Issue: 912, P. 169048 - 169048

Published: Dec. 5, 2023

Language: Английский

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Formation, behavior, properties and impact of micro- and nanoplastics on agricultural soil ecosystems (A Review)

NanoImpact, Journal Year: 2023, Volume and Issue: 31, P. 100474 - 100474

Published: July 1, 2023

Micro and nanoplastics (MPs NPs, respectively) in agricultural soil ecosystems represent a pervasive global environmental concern, posing risks to biota, hence health food security. This review provides comprehensive current summary of the literature on sources properties MNPs ecosystems, methodology for isolation characterization recovered from soil, MNP surrogate materials that mimic size soil-borne MNPs, transport through matrix. Furthermore, this elucidates impacts crops microorganisms fauna. A significant source MPs is plasticulture, involving use mulch films other plastic-based implements provide several agronomic benefits specialty crop production, while include irrigation water fertilizer. Long-term studies are needed address knowledge gaps formation, surface subsurface transport, including derived biodegradable films, which, although ultimately undergoing complete mineralization, will reside months. Because complexity variability difficulty recovering deeper understanding fundamental relationships between MPs, biota microbiota, ecotoxicological effects earthworms, soil-dwelling invertebrates, beneficial microorganisms, geochemical attributes. In addition, geometry, distribution, chemical properties, concentration contained soils required develop reference can be used across laboratories conducting laboratory studies.

Language: Английский

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Impacts of Plastics on Plant Development: Recent Advances and Future Research Directions

Plants, Journal Year: 2023, Volume and Issue: 12(18), P. 3282 - 3282

Published: Sept. 15, 2023

Plastics have inundated the world, with microplastics (MPs) being small particles, less than 5 mm in size, originating from various sources. They pervade ecosystems such as freshwater and marine environments, soils, atmosphere. MPs, due to their size strong adsorption capacity, pose a threat plants by inhibiting seed germination, root elongation, nutrient absorption. The accumulation of MPs induces oxidative stress, cytotoxicity, genotoxicity plants, which also impacts plant development, mineral nutrition, photosynthesis, toxic accumulation, metabolite production tissues. Furthermore, roots can absorb nanoplastics (NPs), are then distributed stems, leaves, fruits. As NPs harm organisms ecosystems, they raise concerns about physical damage effects on animals, potential impact human health via food webs. Understanding environmental fate is essential, along strategies reduce release mitigate consequences. However, full understanding different plastics, whether traditional or biodegradable, development yet be achieved. This review offers an up-to-date overview latest known plastics plants.

Language: Английский

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Unlocking the Potentials of Biodegradable Plastics with Proper Management and Evaluation at Environmentally Relevant Concentrations

npj Materials Sustainability, Journal Year: 2024, Volume and Issue: 2(1)

Published: April 18, 2024

Abstract Biodegradable plastics have been proposed as an alternative to conventional for many applications, such single-use plastic bags, disposable cutleries and tablewares, agricultural mulch films. However, concerns arisen about environmental sustainability of biodegradable plastics, especially regarding degradability, generation micro- nanoplastics, release additives. Here, we critically evaluate literature on the degradation ecotoxicity with consideration environmentally relevant concentrations. Our evaluation suggests that, provided proper disposal full biodegradation, including would not accumulate substantially in environment be far from reaching concentrations at which negative impacts ecosystems can expected. In addition, highlight existing regulatory efforts prevent adverse plastics. To ensure timely biodegradation under various conditions, propose calibrate actual biodegradability environments against intrinsic standards. Further, recommend supplement certificates clear instructions, end-of-life management. With testing, comprehensive labeling, effective management, believe certain are a promising substitute

Language: Английский

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Biodegradable plastics: mechanisms of degradation and generated bio microplastic impact on soil health

Biodegradation, Journal Year: 2024, Volume and Issue: 35(6), P. 863 - 892

Published: July 10, 2024

Language: Английский

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Exploring Environmental Behaviors and Health Impacts of Biodegradable Microplastics

Environmental Science & Technology, Journal Year: 2025, Volume and Issue: unknown

Published: March 21, 2025

Biodegradable plastics (BPs) are promoted as eco-friendly alternatives to conventional plastics. However, compared microplastics (MPs), they degrade rapidly into biodegradable (BMPs), which may lead a more significant accumulation of BMPs in the environment. This review systematically compares and MPs, summarizes current knowledge on their environmental behaviors impacts ecosystems human health, offers recommendations for future research. detected water, sediments, indoor dust, food, marine organisms, samples. Compared prone transformations, such photodegradation biodegradation, results shorter migration distance across different matrices. Like can adsorb pollutants transport them enhancing toxicity health risks through Trojan horse effect. Studies indicate that negatively impact terrestrial aquatic than MPs by disrupting nutrient cycling inhibiting plant animal growth. In vivo vitro research also shows BMP degradation products increase bioavailability, exacerbating neurotoxicity overall toxicity. findings BMPs' effects remain inconsistent. Further evaluation trade-offs between biodegradability is needed address these uncertainties.

Language: Английский

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