Filtration of polystyrene nanoplastics with different functional groups by natural mineral materials : Performance and mechanisms
Copyright © 2024 Elsevier Ltd. All rights reserved..
Optimizing nanoplastics (NPs) removal performance of rapid sand filter (RSF) in water treatment plants is significant for NP pollution prevention and remediation. This study investigated the application prospect of natural granular manganese sand, zeolite and limestone in RSF for NP removal through column experiments. Pristine, amino-modified, and carboxyl-modified polystyrene NPs (100 nm) were selected as experimental subjects. Quartz sand filter showed negligible NP removal, zeolite and manganese sand showed no obvious optimization on NP filtration. Limestone amended RSF significantly enhanced the removal of three NPs, the removal efficiency increased with decreasing size and increasing limestone grains dosage. The excellent performance of limestone was attributed to its special physicochemical properties in terms of synthetical action of electrostatic interaction, cationic bridging and especially the surface roughness morphology, and the mechanisms overcame the influence of functional groups of NPs. The results indicate the prospective applications of granular limestone in RSF for NP filtration.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2024 |
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| Erschienen: |
2024 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:200 |
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| Enthalten in: |
Marine pollution bulletin - 200(2024) vom: 30. März, Seite 116094 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Wang, Hao [VerfasserIn] |
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| Links: |
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| Themen: |
1318-02-1 |
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| Anmerkungen: |
Date Completed 11.03.2024 Date Revised 11.03.2024 published: Print-Electronic Citation Status MEDLINE |
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| doi: |
10.1016/j.marpolbul.2024.116094 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| 500 | |a Citation Status MEDLINE | ||
| 520 | |a Copyright © 2024 Elsevier Ltd. All rights reserved. | ||
| 520 | |a Optimizing nanoplastics (NPs) removal performance of rapid sand filter (RSF) in water treatment plants is significant for NP pollution prevention and remediation. This study investigated the application prospect of natural granular manganese sand, zeolite and limestone in RSF for NP removal through column experiments. Pristine, amino-modified, and carboxyl-modified polystyrene NPs (100 nm) were selected as experimental subjects. Quartz sand filter showed negligible NP removal, zeolite and manganese sand showed no obvious optimization on NP filtration. Limestone amended RSF significantly enhanced the removal of three NPs, the removal efficiency increased with decreasing size and increasing limestone grains dosage. The excellent performance of limestone was attributed to its special physicochemical properties in terms of synthetical action of electrostatic interaction, cationic bridging and especially the surface roughness morphology, and the mechanisms overcame the influence of functional groups of NPs. The results indicate the prospective applications of granular limestone in RSF for NP filtration | ||
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a Functional groups | |
| 650 | 4 | |a Limestone grains | |
| 650 | 4 | |a Nanoplastics | |
| 650 | 4 | |a Rapid sand filter | |
| 650 | 4 | |a Roughness morphology | |
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| 650 | 7 | |a Microplastics |2 NLM | |
| 650 | 7 | |a Manganese |2 NLM | |
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| 650 | 7 | |a Zeolites |2 NLM | |
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| 700 | 1 | |a Wang, Yu |e verfasserin |4 aut | |
| 700 | 1 | |a Zhang, Tongyu |e verfasserin |4 aut | |
| 700 | 1 | |a Ji, Yining |e verfasserin |4 aut | |
| 700 | 1 | |a Zhang, Yuanyuan |e verfasserin |4 aut | |
| 700 | 1 | |a Wang, Yufei |e verfasserin |4 aut | |
| 700 | 1 | |a Li, Xiaohui |e verfasserin |4 aut | |
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