Record nummer 2221426
Titel artikel Effect of water temperature on biofouling development in reverse osmosis membrane systems
Auteur(s) Farhat, N.M. ; Vrouwenvelder, J.S. ; Loosdrecht, M.C.M. van ; Bucs, S. ; Staal, M.
Tijdschrifttitel Water research : the journal of the International Association on Water Quality
Deel(Jaar)Nummer (2016)103
Paginering 149 - 159
Online full text
Publicatie type Artikel
Taal Engels
Toelichting (Engels) Understanding the factors that determine the spatial and temporal biofilm development is a key to formulate effective control strategies in reverse osmosis membrane systems for desalination and wastewater reuse. In this study, biofilm development was investigated at different water temperatures (10, 20, and 30 °C) inside a membrane fouling simulator (MFS) flow cell. The MFS studies were done at the same crossflow velocity with the same type of membrane and spacer materials, and the same feed water type and nutrient concentration, differing only in water temperature. Spatially resolved biofilm parameters such as oxygen decrease rate, biovolume, biofilm spatial distribution, thickness and composition were measured using in-situ imaging techniques. Pressure drop (PD) increase in time was used as a benchmark as to when to stop the experiments. Biofilm measurements were performed daily, and experiments were stopped once the average PD increased to 40 mbar/cm.
Betrokken instanties Technische Universiteit Delft
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