RSC Advances, Год журнала: 2023, Номер 13(23), С. 15566 - 15574
Опубликована: Янв. 1, 2023
Microplastics (MPs) are receiving increasing attention from researchers.
Язык: Английский
Environmental Pollution, Год журнала: 2021, Номер 290, С. 117999 - 117999
Опубликована: Авг. 17, 2021
Язык: Английский
Процитировано
194
Chemosphere, Год журнала: 2022, Номер 309, С. 136809 - 136809
Опубликована: Окт. 10, 2022
This work aims at evaluating the fate of microplastics (MPs) along Fenton oxidation. For such goal, realistic MPs (150-250 μm) five representative polymer types (PET, PE, PVC, PP and EPS) were obtained from commercial plastic products by cryogenic milling. Experiments (7.5 h) performed under relatively severe operating conditions: T = 80 °C; pH0 3; [H2O2]0 1000 mgL-1 (15 doses, 1 every 0.5 h); [Fe3+]0 10 (5 1.5 h). Slight weight losses (∼10%) achieved after oxidation regardless MP nature. Nevertheless, yield clearly increased with decreasing particle size given their higher exposed surface area (up to 20% loss 20-50 μm EPS MPs). Clearly, suffered important changes in due introduction oxygenated groups, which made them more acidic hydrophilic. Furthermore, progressively reduced size. In fact, they can be completely oxidized CO2, as demonstrated PS nanoplastics (140 nm), where 70% mineralization was achieved. The nature particles had a relevant impact on its overall oxidation, being prone those polymers contain aromatic rings structures (EPS PET) compared formed alkane chains (PE, PVC). latter, presence substituents also potential. Remarkably, possible leachates released reaction quickly than MPs/NPs, so it assumed that these dissolved compounds would removed once solid are eliminated. Notably, upon biodegradable fresh solids. All this knowledge is crucial for understanding process opens door design optimization technology either water treatment or analytical purposes (MPs isolation).
Язык: Английский
Процитировано
81
Chemosphere, Год журнала: 2022, Номер 299, С. 134418 - 134418
Опубликована: Март 26, 2022
Язык: Английский
Процитировано
80
Journal of Cleaner Production, Год журнала: 2022, Номер 376, С. 134314 - 134314
Опубликована: Сен. 25, 2022
Язык: Английский
Процитировано
75
The Science of The Total Environment, Год журнала: 2022, Номер 861, С. 160665 - 160665
Опубликована: Дек. 5, 2022
Water treatment plants' effluents are hotspots of microplastics (MPs) and microfibres (MFs) released into the aquatic environment because they were not designed to capture these particles. Special attention should be given MFs, since mainly come from laundry related one main MP shapes detected in water wastewater plants. In this sense, Advanced Oxidation Processes (AOPs) could a feasible solution for tackling MF pollution, however, it is still premature extract conclusions due limited number studies on degradation particles (specifically MFs) using AOPs. This review addresses impacts AOPs MPs/MFs, focusing their efficiency, toxicity, sustainability processes, among other aspects. The points out that polyamide MFs can achieve mass loss >90% by photocatalytic system TiO2. Also, low oxidation MPs (<30 %) conventional Fenton process affects surface MPs. However, Fenton-based processes provide better removal some types MPs, temperatures >100 °C, reaction time ≥ 5 h, initial pH ≤ 3, achieving weight up 96 %. Despite results, operating conditions required ones reported so far full-scale application. Additionally, ozonation plants has increased fragmentation (including MFs), leading new generation More needed toxicity effects intermediates methods analysis employed MPs/MFs effluent standardized compared effectively. Future research focus AOP (power consumption, chemicals consumed operational costs) understanding applicability adapted treatment.
Язык: Английский
Процитировано
73
Environmental Pollution, Год журнала: 2023, Номер 334, С. 122156 - 122156
Опубликована: Июль 6, 2023
Язык: Английский
Процитировано
55
TrAC Trends in Analytical Chemistry, Год журнала: 2024, Номер 172, С. 117566 - 117566
Опубликована: Янв. 30, 2024
The analysis of microplastics (MPs) in terrestrial environments and the evaluation their environmental risk has gained great attention, owing to increasing evidence for widespread presence soils freshwater sediments globally. Once environment, MPs undergo abiotic biotic processes which alter properties integrity: this process is called "aging" implications fate these contaminants, morphology surface chemistry. Aging may also affect analytical assessment samples: samples likely contain aged MPs, while methods are generally established using pristine plastics validation. This can lead uncertainties quantification characterization. critical review summarizes current trends simulation characterization MP aging laboratory conditions, highlighting limitations knowledge gaps. It discusses challenges induced by samples, providing directions toward possible solutions.
Язык: Английский
Процитировано
41
Desalination and Water Treatment, Год журнала: 2024, Номер 317, С. 100138 - 100138
Опубликована: Янв. 1, 2024
In this study, the literature has been reviewed for following purposes: (1) to summarize land-based and marine-based sources of microplastics (MPs) in marine environment, (2) evaluate abundance MPs waters factors affecting MP waters, (3) review general polymer types, shapes, sizes colors determine dominant characteristics (4) reveal negative effects on various organisms (phytoplankton, zooplankton, corals, fish, sea turtles, seabirds). This present provides an overview sources, abundance, which may guide future plastic/MP pollution management strategies improvement removal methods from waters. Additionally, highlights presence organism environment organisms.
Язык: Английский
Процитировано
31
Advanced Powder Materials, Год журнала: 2024, Номер unknown, С. 100233 - 100233
Опубликована: Сен. 1, 2024
Язык: Английский
Процитировано
30
Chemosphere, Год журнала: 2024, Номер 357, С. 141939 - 141939
Опубликована: Апрель 13, 2024
Язык: Английский
Процитировано
23