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Low Fouling Nanostr...
Low Fouling Nanostructured Cellulose Membranes for Ultrafiltration in Wastewater Treatment
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- Joshi, Ritika (författare)
- SUNY Stony Brook, Dept Chem, 100 Nicolls Rd, Stony Brook, NY 11794 USA.
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- Sebat, Nilay (författare)
- SUNY Stony Brook, Dept Chem, 100 Nicolls Rd, Stony Brook, NY 11794 USA.
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- Chi, Kai (författare)
- SUNY Stony Brook, Dept Chem, 100 Nicolls Rd, Stony Brook, NY 11794 USA.
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- Khan, Madani (författare)
- SUNY Stony Brook, Dept Chem, 100 Nicolls Rd, Stony Brook, NY 11794 USA.
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- Johnson, Ken I. (författare)
- SUNY Stony Brook, Dept Chem, 100 Nicolls Rd, Stony Brook, NY 11794 USA.
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- Alhamzani, Abdulrahman G. (författare)
- Imam Mohammad Ibn Saud Islamic Univ IMSIU, Dept Chem, Riyadh 11623, Saudi Arabia.
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- Habib, M. A. (författare)
- Imam Mohammad Ibn Saud Islamic Univ IMSIU, Dept Chem, Riyadh 11623, Saudi Arabia.
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- Lindström, Tom S. C. (författare)
- KTH,Hållfasthetslära,Fiber- och polymerteknologi
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- Hsiao, Benjamin S. (författare)
- SUNY Stony Brook, Dept Chem, 100 Nicolls Rd, Stony Brook, NY 11794 USA.
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SUNY Stony Brook, Dept Chem, 100 Nicolls Rd, Stony Brook, NY 11794 USA Imam Mohammad Ibn Saud Islamic Univ IMSIU, Dept Chem, Riyadh 11623, Saudi Arabia. (creator_code:org_t)
- 2023-01-23
- 2023
- Engelska.
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Ingår i: Membranes. - : MDPI AG. - 2077-0375. ; 13:2
- Relaterad länk:
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https://doi.org/10.3...
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https://urn.kb.se/re...
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https://doi.org/10.3...
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Abstract
Ämnesord
Stäng
- Ultrafiltration (UF) is a common technique used in wastewater treatments. However, the issue of membrane fouling in UF can greatly hinder the effectiveness of the treatments. This study demonstrated a low-fouling composite cellulose membrane system based on microfibrillated cellulose (MFC) and silica nanoparticle additives. The incorporation of 'non-spherical' silica nanoparticles was found to exhibit better structural integration in the membrane (i.e., minimal aggregation of silica nanoparticles in the membrane scaffold) as compared to spherical silica. The resulting composite membranes were tested for UF using local wastewater, where the best-performing membrane exhibited higher permeation flux than commercial polyvinylidene difluoride (PVDF) and polyether sulfone (PES) membranes while maintaining a high separation efficiency (similar to 99.6%) and good flux recovery ratio (>90%). The analysis of the fouling behavior using different models suggested that the processes of cake layer formation and pore-constriction were probably two dominant fouling mechanisms, likely due to the presence of humic substances in wastewater. The demonstrated cellulose composite membrane system showed low-fouling and high restoration capability by a simple hydraulic cleaning method due to the super hydrophilic nature of the cellulose scaffold containing silica nanoparticles.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Samhällsbyggnadsteknik -- Vattenteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Civil Engineering -- Water Engineering (hsv//eng)
Nyckelord
- cellulose membranes
- nanocellulose
- ultrafiltration
- low fouling
- wastewater treatment
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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