Bio‐Mediated Flocculation of Freshwater Microplastics: Effects of Microalgae With Exopolymer Attachments DOI Creative Commons
Jianwei Zhang, Xiaoteng Shen, Peter Robins

и другие.

Water Resources Research, Год журнала: 2025, Номер 61(5)

Опубликована: Май 1, 2025

Abstract Transparent exopolymer particles (TEPs) are crucial for enhancing the flocculation of microplastics (MPs). However, quantitatively evaluating influence TEP on process and addressing these effects in a model challenging. In this study, three freshwater microalgae ( Scenedesmus sp., Aulacoseira granulata , Melosira varians ) with various levels production were incubated to investigate biologically mediated MPs mixing chamber. The results revealed that microalgal species significantly increased flocculation, floc size increasing notably (one‐way analysis variance, p value < 0.001) at later incubation periods (12, 16, 20, 24, 30 days), compared early (after 6 9 when was lower. A critical concentration (0.42 mg/L) observed, beyond which further increases had minimal process. Among selected microalgae, sp.‐MPs mixture presented faster growth rate than . Furthermore, modified population balance equation proposed incorporate ratio microplastic into aggregation maximum specific parameters. equilibrium mean dependent MP is fixed, good agreement experimental data. illustrates potential simulate exopolymer‐driven interactions between provides insights mechanisms bio‐mediated flocculation.

Язык: Английский

Bio‐Mediated Flocculation of Freshwater Microplastics: Effects of Microalgae With Exopolymer Attachments DOI Creative Commons
Jianwei Zhang, Xiaoteng Shen, Peter Robins

и другие.

Water Resources Research, Год журнала: 2025, Номер 61(5)

Опубликована: Май 1, 2025

Abstract Transparent exopolymer particles (TEPs) are crucial for enhancing the flocculation of microplastics (MPs). However, quantitatively evaluating influence TEP on process and addressing these effects in a model challenging. In this study, three freshwater microalgae ( Scenedesmus sp., Aulacoseira granulata , Melosira varians ) with various levels production were incubated to investigate biologically mediated MPs mixing chamber. The results revealed that microalgal species significantly increased flocculation, floc size increasing notably (one‐way analysis variance, p value < 0.001) at later incubation periods (12, 16, 20, 24, 30 days), compared early (after 6 9 when was lower. A critical concentration (0.42 mg/L) observed, beyond which further increases had minimal process. Among selected microalgae, sp.‐MPs mixture presented faster growth rate than . Furthermore, modified population balance equation proposed incorporate ratio microplastic into aggregation maximum specific parameters. equilibrium mean dependent MP is fixed, good agreement experimental data. illustrates potential simulate exopolymer‐driven interactions between provides insights mechanisms bio‐mediated flocculation.

Язык: Английский

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