Fouling removal in ceramic ultrafiltration membrane via catalyst modification with Fenton-like backwash.
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| Title: | Fouling removal in ceramic ultrafiltration membrane via catalyst modification with Fenton-like backwash. |
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| Authors: | Zhang, Shuo1 (AUTHOR) S.Zhang-10@tudelft.nl, Wang, Keyang1 (AUTHOR), Rietveld, Luuk C.1 (AUTHOR), Heijman, Sebastiaan G.J.1 (AUTHOR) |
| Source: | Journal of Membrane Science. Oct2025, Vol. 734, pN.PAG-N.PAG. 1p. |
| Subjects: | Fouling, Ultrafiltration, Water purification, Haber-Weiss reaction, Catalyst synthesis |
| Abstract: | Fouling remains a critical challenge for ceramic ultrafiltration membranes, limiting their long-term performance for water treatment. Fenton-like reactions have been widely used for fouling removal due to the formation of strong radicals. Integrating these reactions into backwash offers a promising strategy for fouling control. However, it has been unclear how Fenton-like backwash is influenced by operational parameters and fouling structures. Here we reveal the key factors influencing Fenton-like backwash by systematically studying its performance under varying conditions, such as backwash pressure (0.3–1 bar), duration (18–36 min), fouling structure (caused by 1–5 mM Ca) and the long-term operation, to provide an effective and practical cleaning. CuFe 2 O 4 was grown on ceramic ultrafiltration membranes due to its stability and high catalytic efficiency in activating Fenton-like reactions. We found that Fenton-like backwash achieved the highest cleaning efficacy of approximately 70 % over three cycles at a low backwash pressure of 0.3 bar, while hydraulic backwash remained ineffective under all conditions. Backwash pressure, rather than duration, was identified as the dominant factor governing the Fenton-like cleaning, due to its impact on the residence time of Fenton-like agents (H 2 O 2). The presence of a high Ca concentration (3 and 5 mM) altered the fouling behaviour, and reduced the cleaning efficacy of Fenton-like backwash. This reduction was attributed to the formation of rigid alginate clusters that were resistant to Fenton-like reactions. The contribution of •OH to the enhanced Fenton-like backwash was confirmed by the quenching experiments. Furthermore, the CuFe 2 O 4 -coated membranes exhibited stable flux recovery (83 %–94 %) in the long-term treatment of a concentrated alginate (800 mg/L), showed low or negligible leaching in hash environments (30 mM H 2 O 2 , 0.1 % NaClO or 10 mM NaOH), and maintained comparable performance after 96 h aging by 30 mM H 2 O 2. This study clarifies the factors governing Fenton-like backwash, and demonstrates that a robust and effective strategy for fouling removal can be achieved by coupling this cleaning method with catalytic ceramic membranes. [Display omitted] • CuFe 2 O 4 membrane with Fenton-like reactions largely enhanced backwash efficacy • Residence time, rather than the backwash time, dominated the Fenton-like cleaning • The presence of calcium ions negatively influenced the Fenton-like backwash [ABSTRACT FROM AUTHOR] |
| Copyright of Journal of Membrane Science is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
| FullText | Text: Availability: 0 |
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| Header | DbId: egs DbLabel: Engineering Source An: 187528040 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Fouling removal in ceramic ultrafiltration membrane via catalyst modification with Fenton-like backwash. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Zhang%2C+Shuo%22">Zhang, Shuo</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> S.Zhang-10@tudelft.nl</i><br /><searchLink fieldCode="AR" term="%22Wang%2C+Keyang%22">Wang, Keyang</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Rietveld%2C+Luuk+C%2E%22">Rietveld, Luuk C.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Heijman%2C+Sebastiaan+G%2EJ%2E%22">Heijman, Sebastiaan G.J.</searchLink><relatesTo>1</relatesTo> (AUTHOR) – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Journal+of+Membrane+Science%22">Journal of Membrane Science</searchLink>. Oct2025, Vol. 734, pN.PAG-N.PAG. 1p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Fouling%22">Fouling</searchLink><br /><searchLink fieldCode="DE" term="%22Ultrafiltration%22">Ultrafiltration</searchLink><br /><searchLink fieldCode="DE" term="%22Water+purification%22">Water purification</searchLink><br /><searchLink fieldCode="DE" term="%22Haber-Weiss+reaction%22">Haber-Weiss reaction</searchLink><br /><searchLink fieldCode="DE" term="%22Catalyst+synthesis%22">Catalyst synthesis</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Fouling remains a critical challenge for ceramic ultrafiltration membranes, limiting their long-term performance for water treatment. Fenton-like reactions have been widely used for fouling removal due to the formation of strong radicals. Integrating these reactions into backwash offers a promising strategy for fouling control. However, it has been unclear how Fenton-like backwash is influenced by operational parameters and fouling structures. Here we reveal the key factors influencing Fenton-like backwash by systematically studying its performance under varying conditions, such as backwash pressure (0.3–1 bar), duration (18–36 min), fouling structure (caused by 1–5 mM Ca) and the long-term operation, to provide an effective and practical cleaning. CuFe 2 O 4 was grown on ceramic ultrafiltration membranes due to its stability and high catalytic efficiency in activating Fenton-like reactions. We found that Fenton-like backwash achieved the highest cleaning efficacy of approximately 70 % over three cycles at a low backwash pressure of 0.3 bar, while hydraulic backwash remained ineffective under all conditions. Backwash pressure, rather than duration, was identified as the dominant factor governing the Fenton-like cleaning, due to its impact on the residence time of Fenton-like agents (H 2 O 2). The presence of a high Ca concentration (3 and 5 mM) altered the fouling behaviour, and reduced the cleaning efficacy of Fenton-like backwash. This reduction was attributed to the formation of rigid alginate clusters that were resistant to Fenton-like reactions. The contribution of •OH to the enhanced Fenton-like backwash was confirmed by the quenching experiments. Furthermore, the CuFe 2 O 4 -coated membranes exhibited stable flux recovery (83 %–94 %) in the long-term treatment of a concentrated alginate (800 mg/L), showed low or negligible leaching in hash environments (30 mM H 2 O 2 , 0.1 % NaClO or 10 mM NaOH), and maintained comparable performance after 96 h aging by 30 mM H 2 O 2. This study clarifies the factors governing Fenton-like backwash, and demonstrates that a robust and effective strategy for fouling removal can be achieved by coupling this cleaning method with catalytic ceramic membranes. [Display omitted] • CuFe 2 O 4 membrane with Fenton-like reactions largely enhanced backwash efficacy • Residence time, rather than the backwash time, dominated the Fenton-like cleaning • The presence of calcium ions negatively influenced the Fenton-like backwash [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Journal of Membrane Science is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1016/j.memsci.2025.124411 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 1 StartPage: N.PAG Subjects: – SubjectFull: Fouling Type: general – SubjectFull: Ultrafiltration Type: general – SubjectFull: Water purification Type: general – SubjectFull: Haber-Weiss reaction Type: general – SubjectFull: Catalyst synthesis Type: general Titles: – TitleFull: Fouling removal in ceramic ultrafiltration membrane via catalyst modification with Fenton-like backwash. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Zhang, Shuo – PersonEntity: Name: NameFull: Wang, Keyang – PersonEntity: Name: NameFull: Rietveld, Luuk C. – PersonEntity: Name: NameFull: Heijman, Sebastiaan G.J. IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 10 Text: Oct2025 Type: published Y: 2025 Identifiers: – Type: issn-print Value: 03767388 Numbering: – Type: volume Value: 734 Titles: – TitleFull: Journal of Membrane Science Type: main |
| ResultId | 1 |
