Effects of Salinity Level on Microplastic Removal in Simulated Waters Using Agglomeration–Micro-Flotation Article Swipe
Theerayut Phengsaart
,
Palot Srichonphaisarn
,
Worada Khwathichak
,
Chanatip Bumrungsak
,
Ilhwan Park
,
Mayumi Ito
,
Mylah Villacorte-Tabelin
,
Carlito Baltazar Tabelin
,
Sanghee Jeon
,
Kazutoshi Haga
,
Onchanok Juntarasakul
·
YOU?
·
· 2025
· Open Access
·
· DOI: https://doi.org/10.3390/w17091264
YOU?
·
· 2025
· Open Access
·
· DOI: https://doi.org/10.3390/w17091264
This study investigates the removal of microplastics (MPs) from simulated freshwater, brackish water, and seawater using a novel agglomeration–micro-flotation technique. This method combines particle size enlargement, facilitated by kerosene as a bridging agent, with bubble size reduction through column flotation to enhance the removal rate. Six common MP types—polypropylene (PP), polyethylene (PE), acrylonitrile butadiene styrene (ABS), polystyrene (PS), polyethylene terephthalate (PET), and polyvinyl chloride (PVC)—were evaluated under varying salinity levels and kerosene dosages. Results showed that increasing kerosene dosage significantly improved removal rates, achieving up to ~99% recovery at 10 µL for low- and medium-density MPs (PP, PE, ABS, and PS), while a higher dosage of 30 µL was required for high-density MPs (PET and PVC). Elevated salinity levels (50–100%) promoted bubble stabilization and reduced coalescence, enhancing particle–bubble collisions and the overall flotation performance. This work addresses a key research gap in flotation-based MP removal under saline conditions and highlights the dual benefits of using kerosene—not only to enhance the removal rate but also to enable energy recovery, as both kerosene and plastics are combustible. The proposed technique presents a promising approach for microplastic remediation in aquatic environments, supporting sustainable water treatment and circular resource utilization.
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Concepts
Metadata
- Type
- article
- Language
- en
- Landing Page
- https://doi.org/10.3390/w17091264
- https://www.mdpi.com/2073-4441/17/9/1264/pdf?version=1745471828
- OA Status
- gold
- References
- 38
- Related Works
- 10
- OpenAlex ID
- https://openalex.org/W4409729544
All OpenAlex metadata
Raw OpenAlex JSON
- OpenAlex ID
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https://openalex.org/W4409729544Canonical identifier for this work in OpenAlex
- DOI
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https://doi.org/10.3390/w17091264Digital Object Identifier
- Title
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Effects of Salinity Level on Microplastic Removal in Simulated Waters Using Agglomeration–Micro-FlotationWork title
- Type
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articleOpenAlex work type
- Language
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enPrimary language
- Publication year
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2025Year of publication
- Publication date
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2025-04-23Full publication date if available
- Authors
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Theerayut Phengsaart, Palot Srichonphaisarn, Worada Khwathichak, Chanatip Bumrungsak, Ilhwan Park, Mayumi Ito, Mylah Villacorte-Tabelin, Carlito Baltazar Tabelin, Sanghee Jeon, Kazutoshi Haga, Onchanok JuntarasakulList of authors in order
- Landing page
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https://doi.org/10.3390/w17091264Publisher landing page
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https://www.mdpi.com/2073-4441/17/9/1264/pdf?version=1745471828Direct link to full text PDF
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YesWhether a free full text is available
- OA status
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goldOpen access status per OpenAlex
- OA URL
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https://www.mdpi.com/2073-4441/17/9/1264/pdf?version=1745471828Direct OA link when available
- Concepts
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Economies of agglomeration, Salinity, Environmental science, Environmental engineering, Environmental chemistry, Chemical engineering, Pulp and paper industry, Chemistry, Oceanography, Geology, EngineeringTop concepts (fields/topics) attached by OpenAlex
- Cited by
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0Total citation count in OpenAlex
- References (count)
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38Number of works referenced by this work
- Related works (count)
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10Other works algorithmically related by OpenAlex
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