Manufacturing of antibiofouling polymeric membranes with bismuth-BAL chelate (BisBAL)

Suleyman Ovez, Turker Turken, Borte Kose-Mutlu, Selin Okatan, Gamze Durmaz, Mehmet C. Guclu, Serkan Guclu, Shankar Chellam, Ismail Koyuncu*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)


Recent developments indicate an increase in demand of water supply and protection of natural water source quality with a requirement of advanced wastewater treatment systems. Formation of biofilms on the membrane surfaces and in the pores of membranes which are caused by extracellular polymeric substances and soluble microbial products has been identified as the main source of biofouling in membrane operation. The secretion of total polysaccharides and proteins by micro-organisms can be lowered when they are exposed to the bismuth-BAL chelate (BisBAL) at near minimum inhibition concentration. Our study aimed at controlling the population and co-products of micro-organisms that cause biofouling. After successful studies with the inhibition of Escherichia coli and Streptococcus pyogenes in activated sludge, BisBAL-containing membranes were fabricated. The effect of BisBAL on membrane performance was also observed. FTIR, SEM, contact angle, and surface roughness analyses were performed for the characterization of the membranes. Originality of this study comes from the usage of BisBAL for the first time for membrane synthesis.

Original languageEnglish
Pages (from-to)12941-12955
Number of pages15
JournalDesalination and Water Treatment
Issue number28
Publication statusPublished - 14 Jun 2016

Bibliographical note

Publisher Copyright:
© 2015 Balaban Desalination Publications. All rights reserved.


  • Antibiofouling membrane
  • BisBAL
  • Membrane manufacturing
  • Membrane resistances
  • PES membranes
  • PSf membranes
  • Xanthan gum


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