Green solutions for blue waters: Using biomaterials to purify water from microplastics and nanoplastics

Journal of Water Process Engineering, Год журнала: 2024, Номер 65, С. 105854 - 105854

Опубликована: Июль 23, 2024

Язык: Английский

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Recent advances and future technologies in nano-microplastics detection

Environmental Sciences Europe, Год журнала: 2025, Номер 37(1)

Опубликована: Янв. 8, 2025

The degradation of mismanaged plastic waste in the environment results formation microplastics (MPs) and nanoplastics (NPs), which pose significant risks to ecosystems human health. These particles are pervasive, detected even remote regions, can enter food chain, accumulating organisms causing harm depending on factors such as particle load, exposure dose, presence co-contaminants. Detecting analyzing NMPs present unique challenges, particularly size decreases, making them increasingly difficult identify. Moreover, absence standardized protocols for their detection analysis further hinders comprehensive assessments environmental biological impacts. This review provides a detailed overview latest advancements technologies sampling, separation, measurement, quantification NMPs. It highlights promising approaches, supported by practical examples from recent studies, while critically addressing persistent challenges characterization, analysis. work examines cutting-edge developments nanotechnology-based detection, integrated spectro-microscopic techniques, AI-driven classification algorithms, offering solutions bridge gaps NMP research. By exploring state-of-the-art methodologies presenting future perspectives, this valuable insights improving capabilities at micro- nanoscale, enabling more effective across diverse contexts.

Язык: Английский

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Identification of Microplastics Using µ-Raman Spectroscopy in Surface and Groundwater Bodies of SE Attica, Greece

Water, Год журнала: 2024, Номер 16(6), С. 843 - 843

Опубликована: Март 14, 2024

Sixteen surface (5) and groundwater (11) samples were collected from the south-eastern part of Attica, Greece, analysed for physico-chemical parameters microplastics (MPs) by optical microscopy Raman microspectroscopy (RS). A total 3399 particles optically identified in all sixteen samples, ranging only 16 particles/L a sample deeper borehole to 513 shallow water well. They then visually classified into eight categories based on their color, texture, size, reflectivity, shape, general morphological properties. was performed filters revealed four different types MPs, namely polyethylene (PE, 35%), polypropylene (PP, 30%), polystyrene (PS, 10%), terephthalate (PET, 25%). The phreatic aquifer contained more MPs than borehole, which fewer categories. This is be expected, since (a) generally contaminated, as it close human activities that generate its infiltration depth few metres, means many can infiltrate at such depths, (b) exposed atmosphere, so they also suspended air. On other hand, interesting note especially PET PE, detected sample, suggesting migrate greater depths through infiltration. Chemical analyses high values E.C., Ca2+, Mg2+, Cl−, Na+, indicate seawater intrusion taking place coastal system Erasinos basin. increased concentrations NO3− PO43− impact agricultural activities.

Язык: Английский

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Particulate contamination of human placenta: Plastic and non-plastic

Environmental Advances, Год журнала: 2024, Номер 17, С. 100555 - 100555

Опубликована: Июнь 5, 2024

Recent evidence indicates that the human womb is contaminated with a variety of particulate contaminants. Microplastics (MPs, tiny plastic particles, 0.1 – 5000 µm) generated by breakdown larger products in environment) accumulation placenta has recently been described. In addition, recent correlated number air pollution particulates term placentas to loading these particles dust from gestational parent home. The current study sought characterize and non-plastic (NPP) within placenta. Placenta tissues were collected healthy, singleton pregnancies following vaginal (n=5) caesarean section deliveries at tertiary care centre located an urban Canadian city (Ottawa, ON), detected characterized Raman micro-spectroscopy. Both identified all examined, average 1 ± 1.2 MPs /g 4 2.9 NPP tissue. Similar tissue concentrations NNP regions (basal plate, chorionic villous, plate), did not differ according mode delivery. ranged size (2 60 μm), most abundant being polyethylene (PE), polypropylene (PP), polystyrene (PS) polyvinyl chloride (PVC). abundantly carbon, graphite, lead oxide. Collectively, results demonstrate foreign including MPs, throughout Given vital functions supporting fetal growth development, potential for induce toxicity, further investigations into harmful effects environmental toxicants on maternal health warranted.

Язык: Английский

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Microplastics in Groundwater: Pathways, Occurrence, and Monitoring Challenges

Water, Год журнала: 2024, Номер 16(9), С. 1228 - 1228

Опубликована: Апрель 25, 2024

Microplastics (MPs), defined as plastic particles measuring less than 5 mm, are considered an emerging pollutant. Their presence in the water cycle and their interaction with ecological processes pose a significant environmental threat. As groundwater (GW) represents primary source of drinking water, monitoring MPs GW investigating potential sources pathways is urgent importance. This article offers comprehensive overview contamination from surface seawater, soil into GW. Moreover, it presents examination occurrence identifies challenges associated study also discusses difficulties comparing research results related to GW, well indicating need for implementing standardised techniques sampling detection. On basis our experience literature review, we highlight importance understanding specific hydrogeological hydrogeographic conditions, collecting representative samples, using devices comparable specifications laboratory MP identification, preventing at all stages process. review valuable insights practical guidelines on how improve reliability comparability between studies

Язык: Английский

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Microplastics and nanoplastics in environment: Sampling, characterization and analytical methods

Groundwater for Sustainable Development, Год журнала: 2024, Номер 26, С. 101267 - 101267

Опубликована: Июль 1, 2024

Язык: Английский

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Development of multifunctional zein-based films engineered with gallic acid and Ag NPs loaded γ-CD-MOFs for pork preservation

Food Packaging and Shelf Life, Год журнала: 2024, Номер 46, С. 101352 - 101352

Опубликована: Сен. 14, 2024

Язык: Английский

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Limits, challenges, and opportunities of sampling groundwater wells with plastic casings for microplastic investigations

The Science of The Total Environment, Год журнала: 2024, Номер 946, С. 174259 - 174259

Опубликована: Июнь 25, 2024

Investigating microplastics (MPs) in groundwater suffers from problems already faced by surface water research, such as the absence of common protocols for sampling and analysis. While use plastic instruments during collection, processing, analysis samples is usually avoided order to minimize unintentional contamination, research encompassing MPs faces unique challenges. Groundwater typically relies on pre-existing monitoring wells (MWs) (WWs) that are often constructed with polyvinyl chloride (PVC) casings or pipes due their favorable price-performance ratio. Despite convenience, however, suitability PVC MP questionable. Unfortunately, specifics these not detailed published studies. Current literature does indicate significant pollution risks casings, suggesting might still be viable Our preliminary existing indicates if exceeds 6 % total concentration, it likely made a source pollution. Above this threshold, additional investigations MWs WWs suggested.

Язык: Английский

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Microplastics in Sewage Sludge: Worldwide Presence in Biosolids, Environmental Impact, Identification Methods and Possible Routes of Degradation, Including the Hydrothermal Carbonization Process

Energies, Год журнала: 2024, Номер 17(17), С. 4219 - 4219

Опубликована: Авг. 23, 2024

Biomass-to-biofuel conversion represents a critical component of the global transition to renewable energy. One most accessible types biomass is sewage sludge (SS). This by-product from wastewater treatment plants (WWTPs) contains microplastics (MPs) originating household, industrial and urban runoff sources. Due their small size (<5 mm) persistence, MPs present challenge when they are removed systems, where mainly accumulate (~90%). The presence in SS poses environmental risks biosolids applied as fertilizer agriculture or incinerated for purpose energy production. key problem efficient reliable identification reduction due lack standardized procedures. methods might involve physical, chemical, biological, hydrothermal approaches, including carbonization (HTC). HTC produces hydrochar (HC), solid biofuel, presents cutting-edge approach that simultaneously addresses secondary microplastic pollution biomass-derived In this article, we review briefly content different countries, promising method removal SS. conclusion, (i) effectively reduces abundance biosolids, (ii) an improved source energy, (iii) contributes circular management.

Язык: Английский

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Tracing the Footprint of Microplastics: Transport Mechanism, Degradation, and Remediation in Marine Environment

Water Air & Soil Pollution, Год журнала: 2025, Номер 236(2)

Опубликована: Янв. 24, 2025

Язык: Английский

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