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Comparison of fouling mechanisms in low-pressure membrane (MF/UF) filtration of secondary effluent

Version 2 2024-06-03, 11:24
Version 1 2014-10-28, 10:17
journal contribution
posted on 2024-06-03, 11:24 authored by S Muthukumaran, J Jegatheesan, Bas BaskaranBas Baskaran
Membrane filtration in municipal wastewater treatment is being increasingly used to improve the quality of water and increase the productivity of existing plants. However, membrane fouling encountered in reclamation of municipal wastewater represents serious design and operational concern. There are several fouling models which are being developed and used as a powerful tool to increase the understanding of the fouling mechanisms and its key characteristics that influence the design of optimal process and operating conditions. This study investigates and compares the fouling mechanisms of three different types of polymeric and ceramic ultrafiltration (UF) and microfiltration (MF) membranes in the recovery of water from secondary effluent. The result demonstrated that ceramic UF membrane produced very high quality of water compared to polymeric UF and ceramic MF membranes. Out of four fouling models used to fit the experimental flux data, cake filtration and pore narrowing and complete pore blocking models predicted the initial fluxes of polymeric UF membrane more accurately. On the other hand, the cake filtration and pore narrowing models predicted the performance of ceramic UF membrane. Whereas, pore narrowing model predicted the performance of ceramic MF membrane more precisely compared to other three models. Further, the application of unified membrane fouling index (UMFI) was used to assess the fouling potential of the membranes. Good agreement between UMFI and other models was found. © 2013 Copyright Balaban Desalination Publications.

History

Journal

Desalination and water treatment

Volume

52

Pagination

650-662

Location

Hopkinton, Mass.

ISSN

1944-3994

eISSN

1944-3986

Language

eng

Publication classification

C1 Refereed article in a scholarly journal, C Journal article

Copyright notice

2014, Taylor & Francis

Issue

4-6

Publisher

Taylor & Francis