Identification and quantification of foulant in submerged membrane reactor

Publisher:
Desalination Publications
Publication Type:
Journal Article
Citation:
Desalination and Water Treatment, 2010, 24 (1-3), pp. 278 - 283
Issue Date:
2010-01
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In submerged membrane system, membrane fouling is linked to the reversible accumulation of macromolecules and solids on the membrane surface and the irreversible sorption of soluble molecules inside the pores. In the first part of the paper, the fouling was analysed at two different aeration rates through the determination of membrane resistance due to (a) sludging (Rsludging), (b) irreversible biofilm (Rbiofilm) and (c) adsorption of organic (Radsorption). These results confirm the importance of aeration for sludge control in the bundle. In the second part of the paper, irreversible foulant obtained at different aeration rates were characterised. Membrane air flow rate limits adsorption of biopolymers onto or into the membrane surface.
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