2013•Advanced materials researchOpen access

Effect of Aeration Intensity on Membrane Fouling of Non-Woven Fibers - MBR

Chun Hua Zhang, Yu Dong, Hong Sun

Abstract

The influence of aeration intensity on membrane fouling in an integrated non-woven membrane bioreactors (MBR) was investigated. MBR with aeration intensity of 0.1 and 0.2m3/h was operated for artificial wastewater for 30 days. The effect of aeration intensity on quantity of extra-cellular polymeric substances (EPS), soluble EPS (EPSS), bound EPS (EPSB) and SUV254 in suspension of MBR were also investigated. The results show that high aeration intensity can improve membrane fouling in certain scope. With increasing of aeration intensity, the quantity of EPS, EPSS EPSB and SUV254 in suspension increase and irreversible fouling resistance also increases.

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Key concepts: Aeration, Fouling, Membrane fouling, Membrane bioreactor, Intensity (physics), Suspension (topology), Membrane, Chemistry