Fate and removal efficiency of polystyrene nanoplastics in a pilot drinking water treatment plant

Arenas, Lina Marcela Ramirez; Gentile, Stéphan Ramseier; Zimmermann, Stéphane; Stoll, Serge

doi:10.1016/j.scitotenv.2021.152623

Cited by 27 publications

(17 citation statements)

References 78 publications

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“…The efficiency of sand filtration increased when the coagulation process was present. The removal capacity of the activated carbon filter was found to be more efficient than the one of the sand filter [11]. In contrast, the retention of sand filtration was found to be more prone to retain the NPLs than the activated carbon filter in the pilot-scale filtration unit.…”

Section: Introductionmentioning

confidence: 83%

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Retention and Transport of Nanoplastics with Different Surface Functionalities in a Sand Filtration System

Okutan,

Hul,

Stoll

et al. 2023

Nanomaterials

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The efficiency of sand filtration was investigated in terms of the behavior of the nanoplastics (NPLs) with different surface functionalities. The initial condition concentrations of NPLs were varied, and their effects on retention and transport were investigated under a constant flow rate in saturated porous media. The behavior of NPLs in this porous system was discussed by considering Z- average size and zeta (ζ) potential measurements of each effluent. The retention efficiencies of NPLs were ranked as functionalized with amidine [A-PS]+ > with sulfate [S-PS]− > with surfactant-coated amidine [SDS-A-PS]−. The reversibility of the adsorption process was revealed by introducing surfactant into the sand filter system containing adsorbed [A-PS]+ at three different initial state concentration conditions. The deposition behavior on sand grain showed that positively charged NPLs were attached to the quartz surface, and negatively charged NPLs were attached to the edge of the clay minerals, which can be caused by electrical heterogeneities. The homoaggregates made of positively charged NPLs were more compact than those made of negatively charged NPLs and surfactant-coated NPLs. An anti-correlation was revealed, suggesting a connection between the fractal dimension (Df) of NPL aggregates and retention efficiencies. Increased Df values are associated with decreased retention efficiencies.The findings underscore the crucial influence of NPL surface properties in terms of retention efficiency and reversible adsorption in the presence of surfactants in sand filtration systems.

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Section: Introductionmentioning

confidence: 83%

“…It was observed that the removal efficiency of NPLs (180 nm) with CFS treatment is insufficient [7]. The removal efficiency of sand filtration and activated carbon filtration processes for PS NPLs of 110 nm was found to be 88.1% [11]. The efficiency of sand filtration increased when the coagulation process was present.…”

Section: Introductionmentioning

confidence: 98%

Retention and Transport of Nanoplastics with Different Surface Functionalities in a Sand Filtration System

Okutan,

Hul,

Stoll

et al. 2023

Nanomaterials

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“…Є чимала кількість різноманітних методів знезараження та очищення води питної якості, які забезпечують їй нормативні органолептичні, хімічні й епідемічні показники (Arenas et al, 2022;Ma et al, 2020). Поліпшення властивостей води можливе за допомогою окиснювачів аміаку, які використовують у швидкісних піщаних фільтрах (Hu, 2020), наночасток металів і різних синтетичних речовин , за допомогою біоплівки для деградації Microcystin-LR, який є токсичним (Kumar et al, 2020), піску, покритого оксидом графену, підготовленого за допомогою простого термічного методу (Vu et al, 2020) та інших інноваційних технологій.…”

Section: анотація пошук нових методів очищення води та забезпечення ї...unclassified

Hematological and Biochemical Indicators of Laboratory Rats Using Probiotic Bacteria V. Licheniformis and V. Subtilis

Yakubchak¹,

Bolgova²,

Taran³

et al. 2022

Sučasne ptahìvnictvo

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The search of new methods for water teatment a ety for both humans and animals (including a bird) is an urgent and important problem today. The purpose of the work is to investigate the effect of drinking water with the use of probiotic bacteria B. licheniformis and B. subtilis on the rats. Experiments were conducted on three-month-old male non-linear laboratory rats with an average body weight of 153.9±2.4 g. There were 15 rats each in the experimental and control groups. For 3 months, the rats of the control group were fed with water taken from a well ("buvette"), the rats of the experimental group were fed with the same water, but passed through a filter with immobilized probiotic bacteria Bacillus licheniformis UKM-5514 and Bacillus subtilis UKM B-5007. Probiotic bacteria have been found to suppress other water microbiota. The positive effect of drinking water with probiotic bacteria in rats was established. In the rats of the research group, already after 1 month of drinking water with probiotic bacteria, the appetite and the condition of the fur, which became thicker and more shiny, compared to the control, improved. An increase in their mass was noted in the experimental group after 2 months by 9%, after 3 – by 12% compared to the control. The content of hemoglobin, total protein and alkaline phosphatase increased in experimental rats. According to the results of pathologicalanatomical and histological studies, the control and experimental animals did not differ from each other. Scientific novelty. A "Ukrainian modification" of "English filters" is proposed, which consists in creating a biofilm of probiotic bacteria on sludge (sand, coal, etc.). This method of water treatment rids it of existing microorganisms and enriches the filtered water with probiotic bacteria, which can be used in animal husbandry, poultry farming, and for the purification of tap drinking water.

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“…Additionally, the effective removal of MPs < 10-20 μm and the micronanoparticles formation during some processes are a challenge for WWTPs and DWTPs (Pivokonský et al, 2020;Shen et al, 2021;Talvitie et al, 2017). Moreover, studies on fragmentation and removal of nanoplastics in DWTP are scarce, making it difficult to understand the scope of nanoplastics in those treatment plants (Mohana et al, 2021;Ramirez Arenas et al, 2022). The presence of MPs in sludge generated by WWTPs is also a concern, as the sludge can be recycled to agricultural land as a fertilizer resource, which can run off into waterways or seep into groundwater (Li et al, 2018;Lofty et al, 2022).…”

Section: Introductionmentioning

confidence: 99%

Insights into the removal of microplastics and microfibres by Advanced Oxidation Processes

Santos

Busquets

Campos

2023

Science of The Total Environment

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Fate and removal efficiency of polystyrene nanoplastics in a pilot drinking water treatment plant

Cited by 27 publications

References 78 publications

Retention and Transport of Nanoplastics with Different Surface Functionalities in a Sand Filtration System

Retention and Transport of Nanoplastics with Different Surface Functionalities in a Sand Filtration System

Hematological and Biochemical Indicators of Laboratory Rats Using Probiotic Bacteria V. Licheniformis and V. Subtilis

Insights into the removal of microplastics and microfibres by Advanced Oxidation Processes

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