Separation of microplastics from mass-limited samples by an effective adsorption technique

Reineccius, Janika; Bresien, Jonas; Waniek, Joanna J

doi:10.1016/j.scitotenv.2021.147881

Cited by 33 publications

(7 citation statements)

References 112 publications

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“… 69 Furthermore, a method using H 2 O 2 as a digestion agent as well as the addition of acetic acid and an adsorption separation technique was demonstrated to recover MP at a rate of 98.0%. 70 Finally, disc filtration has been used to remove polyethylene MP, showing a 90% elimination of those MP. 71 Despite the extremely high removal efficiencies, these methods usually present fouling, which is clearly a disadvantage that is avoided by using the superhydrophobic 304 SS mesh.…”

Section: Resultsmentioning

confidence: 99%

“…Membrane bioreactors involving rapid sand filtration, dissolved air flotation and biological catalysts have also been reported to remove 99% of MP . Furthermore, a method using H 2 O 2 as a digestion agent as well as the addition of acetic acid and an adsorption separation technique was demonstrated to recover MP at a rate of 98.0% . Finally, disc filtration has been used to remove polyethylene MP, showing a 90% elimination of those MP .…”

Section: Resultsmentioning

confidence: 99%

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Superhydrophobic 304 Stainless Steel Mesh for the Removal of High-Density Polyethylene Microplastics

et al. 2022

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Microplastics are a global issue that affects the environment, economy, as well as human health. Herein, we present a superhydrophobic 304 stainless steel mesh obtained by chemical etching followed by a liquid-phase deposition of lauric acid that can be used for microplastic removal. Field emission scanning electron microscopy (FE-SEM) and high-resolution X-ray photoelectron spectroscopy (HR-XPS), among other techniques, were used to identify the hierarchical structure and chemical composition of the surface. They revealed that iron laurate decreased the surface free energy. The 304 stainless steel mesh was superhydrophobic (169°) and superoleophilic (0°). Taking advantage of these wetting properties, we showed an innovative use of these superhydrophobic surfaces in the removal of microplastics. Additionally, we analyzed the removal efficiency from a surface and colloidal point of view that allowed us to explain and clarify why microplastics can also be removed by their wetting properties. The loss of a double electrostatic cloud between the microplastics and the predominance of van der Waals interactions in the organic phase promote the removal of these persistent pollutants from water.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Superhydrophobic 304 Stainless Steel Mesh for the Removal of High-Density Polyethylene Microplastics

et al. 2022

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“…For MPs in marine sediments, they can be efficiently separated and removed by adsorption. This method uses the lipophilic characteristics of MPs and has the advantage of low cost [ 115 ]. The degree of MPs pollution in other natural aquatic ecosystems has also been widely concerned, some natural aquatic ecosystems also have the ability to remove MPs.…”

Section: Enrichment and Removal Technologies Of Microplastics In Aqua...mentioning

confidence: 99%

Removing microplastics from aquatic environments: A critical review

Pan

Gao

et al. 2023

Environmental Science and Ecotechnology

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“…Reacted sediment samples water samples). The 25-μm stainless steel Hollander woven mesh filters were similarly pretreated and examined under the dissecting microscope (Williams et al 2020;Cutroneo et al 2021;Reineccius et al 2021).…”

Section: Microplastic Extractionmentioning

confidence: 99%

Investigating microplastic contamination and biomagnification in a remote area of South Australia

et al. 2023

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Context Microplastics are widespread in aquatic ecosystems and are commonly recorded in water, sediment and a broad spectrum of marine biota. Yet, the extent to which organisms ingest microplastics directly or indirectly by trophic transfer is largely unknown. Aims This study characterises microplastic abundance across intertidal water, sediment, and marine biota species of different trophic levels, and investigates whether biomagnification occurs. Methods Water, sediment, molluscs, crustaceans and fish were sampled from a single area in southern Australia. Key results Microplastics were recorded in 35% of water, 45% of sediment and 39% of biota samples. Plastic load was 0.36 ± 0.08 microplastics g−1 DW for sediment, 0.50 ± 0.17 microplastics L−1 for water, and 0.70 ± 0.25 microplastics individual−1 for biota. Biomagnification was not found, although similarities in plastic characteristics across biota may imply trophic transfer. Most of the microplastics were fibres (97.5%) of blue, black and transparent colour. Spectral analysis (μ-FTIR) indicated that polyester (50%) and polyethylene (42.3%) dominated the polymer compositions. Conclusions There were no significant differences in microplastic contamination among biota species, with no biomagnification identified. Implications We provide information on biomagnification of microplastics alongside a still uncommon characterisation of contamination in water, sediment and biota.

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Separation of microplastics from mass-limited samples by an effective adsorption technique

Cited by 33 publications

References 112 publications

Superhydrophobic 304 Stainless Steel Mesh for the Removal of High-Density Polyethylene Microplastics

Superhydrophobic 304 Stainless Steel Mesh for the Removal of High-Density Polyethylene Microplastics

Removing microplastics from aquatic environments: A critical review

Investigating microplastic contamination and biomagnification in a remote area of South Australia

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