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Ir. Geo Smit
(Norit)
Company members
DSM Solutech
Evides
Norit
Nuon
Shell Global Solutions
Vitens
Waterleidingbedrijf Groningen
Waterleiding Maatschappij Drenthe
Waterlaboratorium Noord
X-flow
Knowledge institute members
Environmental Technology, Wageningen University
prof.dr.ir. Wim H. Rulkens, prof.dr.ir. Cees J.N. Buisman, dr.ir. H. Temmink
Environmental Biotechnology, Technical University Delft
prof.dr.ir. Mark C.M. van Loosdrecht, dr. Cristian Picioreanu
Membrane Process Technology, University Twente
prof.dr.ir. Walter G.J. van der Meer
Membrane processes and operation for waste water treatment and reuse
In membrane bioreactors traditional secondary settlers are replaced by membranes with the advantages of an improved effl uent quality (lower concentrations of pathogens and micro-pollutants), better reuse options, a smaller footprint and the possibility to maintain large concentrations of micro organisms, even under extreme conditions.
The objective is to make membrane bioreactors more robust, less energy demanding and more
economical.The main bottleneck is membrane fouling which requires frequent cleaning with chemicals, a large installed membrane area and high energy consumption.
Research to reduce fouling includes elucidating the mechanism of fouling, training the micro organisms to produce less foulants and adaptation of the membrane properties and membrane operation. Wetsus’ research in this fi eld combines know-how on biochemistry, biotechnology, membrane technology and process technology. This multidisciplinary approach is expected to provide innovative solutions for the complex problems in membrane bioreactors.
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