Preparation and application of patterned hollow-fiber membranes to membrane bioreactor for wastewater treatment

Inae Kim, Dong Chan Choi, Jaewoo Lee, Hee Ro Chae, Jun Hee Jang, Chung Hak Lee, Pyung Kyu Park, Young June Won

Research output: Contribution to journalArticle

34 Citations (Scopus)

Abstract

Hollow-fiber membranes have been widely used in membrane processes for water and wastewater treatments, but membrane fouling in commercialized hollow-fiber membranes still remains a challengeable task to be solved. In this study, we introduced patterned morphology to the membrane surface of a polyvinylidene fluoride (PVDF) hollow-fiber module using a lithographic method. Two types of patterned hollow-fiber (PHF) PVDF membranes (prism and pyramid) were prepared respectively, and their anti-biofouling characteristics were tested in a membrane bioreactor (MBR) for wastewater treatment. PHF membranes with high pattern fidelity were fabricated under the pressurized injection of the non-solvent for phase inversion. The PHFs showed not only higher water flux due to the increase of the effective membrane surface, but also enhanced anti-fouling property in comparison to a non-patterned hollow-fiber membrane. The effect of the PVDF concentration and non-solvent injection rate were also investigated on the morphology and pattern fidelity of PHF membranes.

Original languageEnglish
Pages (from-to)190-196
Number of pages7
JournalJournal of Membrane Science
Volume490
DOIs
Publication statusPublished - 2015 Sep 5

All Science Journal Classification (ASJC) codes

  • Biochemistry
  • Materials Science(all)
  • Physical and Theoretical Chemistry
  • Filtration and Separation

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