Microplastics in Wastewater by Washing Polyester Fabrics

Materials, Journal Year: 2022, Volume and Issue: 15(7), P. 2683 - 2683

Published: April 6, 2022

Microplastics have become one of the most serious environmental hazards today, raising fears that concentrations will continue to rise even further in near future. Micro/nanoparticles are formed when plastic breaks down into tiny fragments due mechanical or photochemical processes. everywhere, and they a strong tendency interact with ecosystem, putting biogenic fauna flora at risk. Polyester (PET) polyamide (PA) two important synthetic fibres, accounting for about 60% total world fibre production. Synthetic fabrics now widely used clothing, carpets, variety other products. During manufacturing cleaning process, textiles potential release microplastics environment. The focus this paper is explore main sources microplastic pollution environment, providing an overview washable polyester materials.

Language: Английский

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Nano and microplastics occurrence in wastewater treatment plants: A comprehensive understanding of microplastics fragmentation and their removal

Chemosphere, Journal Year: 2023, Volume and Issue: 334, P. 139011 - 139011

Published: May 23, 2023

Nano/microplastic (NP/MP) pollution is a growing concern for the water environment. Wastewater treatment plants (WWTPs) are considered major recipients of MP before discharging into local waterbodies. MPs enter WWTPs mainly from synthetic fibers through washing activities and personal care products. To control prevent NP/MP pollution, it essential to have comprehensive understanding their characteristics, fragmentation mechanisms, effectiveness current processes used in removal. Therefore, objectives this study (i) understand detailed mapping WWTP, (ii) mechanisms NP, (iii) investigate removal efficiency by existing WWTP. This found that fiber dominant shape MP, polyethylene, polypropylene, polyethylene terephthalate, polystyrene polymer type wastewater samples. Crack propagation mechanical breakdown due shear forces induced facilities (e.g., pumping, mixing, bubbling) could be causes NP generation Conventional ineffective complete MPs. Although these capable removing ∼95% MPs, they tend accumulate sludge. Thus, significant number may still released environment on daily basis. suggested using DAF process primary unit can an effective strategy initial stage goes secondary tertiary stage.

Language: Английский

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Understanding microplastic pollution: Tracing the footprints and eco-friendly solutions

The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 914, P. 169926 - 169926

Published: Jan. 8, 2024

Language: Английский

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Microalgae for microplastic removal from water and wastewater: a review

Environmental Chemistry Letters, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 5, 2025

Language: Английский

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Effects and mechanisms of aged polystyrene microplastics on the photodegradation of sulfamethoxazole in water under simulated sunlight

Journal of Hazardous Materials, Journal Year: 2022, Volume and Issue: 433, P. 128813 - 128813

Published: March 30, 2022

Language: Английский

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Occurrence, analysis of microplastics in sewage sludge and their fate during composting: A literature review

Journal of Environmental Management, Journal Year: 2022, Volume and Issue: 317, P. 115364 - 115364

Published: May 23, 2022

Language: Английский

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Elimination of Microplastics at Different Stages in Wastewater Treatment Plants

Water, Journal Year: 2022, Volume and Issue: 14(15), P. 2404 - 2404

Published: Aug. 3, 2022

Microplastic pollution has been widely studied as a global issue due to increased plastic usage and its effect on human aquatic life. Microplastics originate from domestic industrial activities. Wastewater treatment plants (WWTPs) play an important role in removing significant amount of microplastics; otherwise, they end up bioaccumulation. This study provides knowledge about the characteristics microplastics, removal efficiency, correlation between wastewater quality microplastic concentrations three different WWTPs that differ type biological advanced techniques are believed removal. types, such fragments, fibers, beads, identified by using optical microscope before after process at each stage assess techniques. In screening unit primary clarifier unit, WWTP-B shows highest efficiency with 74.76% distribution flow system installed ensure constant wastewater. uses bioreactor consisting filter plate coated activated carbon (BSTS II) can enhance adaptability adhesion microorganisms showed 91.04% was removed. Furthermore, only WWTP-A were applied coagulation, followed disc filter; results removal, compared WWTP-C, which used filter. conclusion, all WWTP, good series for wastewater; however, high rate removal; unfortunately, large amounts microplastics still released into rivers.

Language: Английский

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Recent Advances in Photocatalytic Removal of Microplastics: Mechanisms, Kinetic Degradation, and Reactor Design

Frontiers in Marine Science, Journal Year: 2022, Volume and Issue: 9

Published: July 29, 2022

Plastic products are used in almost all aspects of our daily life. Due to their low cost, portability, durability, and resistance degradation, these affecting the health environment biota on a global scale. Thus, removal mineralization microplastics is an important challenge 21st century. Advanced oxidation processes (AOPs) have recently been identified as viable treatment technique for tackling recalcitrant organic molecules polymers. However, information kinetic degradation mechanisms photocatalytic reactor design insufficient. This review discusses fundamentals photocatalysis photo-Fenton addition mechanisms. We also introduce different characterization techniques major microplastic pollutants such PE, PP, PVC, PS, PMMA, PA66. In addition, detailed overview existing plants scaling-up methods photoreactors discussed.

Language: Английский

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Chronic exposure to high-density polyethylene microplastic through feeding alters the nutrient metabolism of juvenile yellow perch (Perca flavescens)

Animal nutrition, Journal Year: 2022, Volume and Issue: 9, P. 143 - 158

Published: Feb. 5, 2022

Microplastics are emergent contaminants threatening aquatic organisms including aquacultured fish. This study investigated the effects of high-density polyethylene (HDPE, 100 to 125 μm) on yellow perch (Perca flavescens) based integrative evaluation growth performance, nutritional status, nutrient metabolism, fish health, and gut microbial community. Five test diets (0, 1, 2, 4, or 8 g HDPE/100 diet) containing 41% protein 10.5% lipid were fed juvenile (average body weight, 25.9 ± 0.2 g; n = 15) at a feeding rate 1.5% 2.0% weight daily. The trial was conducted in flow-through water system for 9 wk with 3 tanks per treatment 15 tank. No mortality HDPE accumulation found any treatments. Weight gain condition factor not significantly impacted by (P > 0.05). Compared control group, 8% diet had decreased levels ash < In response increasing exposure, hepatosomatic index value, hepatocyte size, liver glycogen level increased, but content reduced tissues. treatment, significant accumulations total bile acids different metabolism pathways such as acid biosynthesis, pyruvate carnitine synthesis. Significant enterocyte necrosis documented foregut 2% diet; cell sloughing observed midgut hindgut diet. Fish harbored microbiota communities compared demonstrates that ranging from μm feed can be evacuated no impact growth. However, dietary exposure whole nutrition quality, altered intestinal histopathology well community perch. results indicate extended may pose risk health jeopardize quality end product. hypothesis remains further.

Language: Английский

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Long-Term Occurrence and Fate of Microplastics in WWTPs: A Case Study in Southwest Europe

Applied Sciences, Journal Year: 2022, Volume and Issue: 12(4), P. 2133 - 2133

Published: Feb. 18, 2022

Microplastic (MP) water pollution is a major problem that the world currently facing, and wastewater treatment plants (WWTPs) represent one of main alternatives to reduce MP release environment. Several studies have analysed punctual samples taken throughout line. However, there are few long-term on evolution MPs over time in WWTPs. This work analyses performance WWTP sited Southwest Europe relation with annual occurrence fate MPs. Samples were monthly at different points facility (influent, secondary effluent, final sludge) quantified characterised by means stereomicroscopy FTIR spectrophotometry. The majority found sludge fragments fibres. Regarding chemical composition, samples, polyethylene (PE), terephthalate (PET) polypropylene (PP) stood out, whereas, polymers PET, polyamide (PA) polystyrene (PS). more easily removed during processes those sizes greater than 500 µm. Results showed removal was very high all period efficiencies between 89% 95%, so no great variations months. concentrations dry ranged 12 39 MPs/g, which represented around 79% total processes. It noticeable trend temperature entrapped sewage observed, i.e., higher temperatures entailed percentage retention.

Language: Английский

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