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Water Science & Technology Vol 66 No 1 pp 88–94 © IWA Publishing 2012 doi:10.2166/wst.2012.096

New approaches to characterizing and understanding biofouling of spiral wound membrane systems

Mark C. M. van Loosdrecht, Ludmilla Bereschenko, Andrea Radu, Joop C. Kruithof, Cristian Picioreanu, Michael L. Johns and Hans S. Vrouwenvelder

Dept. Biotechnology, Delft University of Technology, Julianalaan 67, 2628 BC Delft, The Netherlands E-mail: M.C.M.vanLoosdrecht@TUDelft.NL
KWR watercycle research, P.O. Box 1072 3430 BB Nieuwegein, The Netherlands
Wetsus, PO Box 1113, 8900 CC Leeuwarden, The Netherlands
King Abdullah University of Science and Technology, Water Desalination and Reuse Center, Thuwal, Saudi Arabia
School of Mechanical and Chemical Engineering, University of Western Australia, 35 Stirling Highway, Crawley, WA 6009, Australia


ABSTRACT

Historically, biofouling research on spiral wound membrane systems is typically problem solving oriented. Membrane modules are studied as black box systems, investigated by autopsies. Biofouling is not a simple process. Many factors influence each other in a non-linear fashion. These features make biofouling a subject which is not easy to study using a fundamental scientific approach. Nevertheless to solve or minimize the negative impacts of biofouling, a clear understanding of the interacting basic principles is needed. Recent research into microbiological characterizing of biofouling, small scale test units, application of in situ visualization methods, and model approaches allow such an integrated study of biofouling.

Keywords: biofouling; extracellular polymeric substances (EPS); microbiology; modelling; nanofiltration (NF); reverse osmosis (RO)


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