The relation of ultrafiltration membrane fouling caused by algae to algal growth phase

S. Laksono*, A. Kouchaki Shalmani, Jansen, S. Panglisch, University of Duisburg-Essen, C. Staaks, inge GmbH, BASF, Germany

In water treatment industry, ultrafiltration (UF) membrane technology is receiving more and more attention in treatment of algae laden eutrophic source waters. However, fouling of the membrane due to accumulation of algal organic matter on the membrane surface or in membrane pores is the main obstacle to the smooth operation of membrane filtration plants. This drawback is mainly due to the presence of the algae-rich and the algae-derived substances which are well known as algae organic matter (AOM). Membrane fouling behavior can varry as a result of different amount of AOM being produced by algae at different phases (lag phase, exponential phase, stationary phase, and death phase). A series of comprehensive membrane filtration experiments were performed in order to compare the two algae cell conditions, “intact” (mostly present in exponential phase) and “lysed” (mostly present in death phase), in terms of membrane fouling potential and membrane cleaning. Three types of marine algae were used as model water for filtration process: Chlorella Sorokiniana (CS), Arthrospira Platensis (AP), and Thalassiosira Rotula (TR). The results showed...

Session: M8 - Separation of Bio-Products
Day: 15 March 2018
Time: 14:45 - 16:00 h

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